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Old 05-24-2013, 10:07 PM   #1
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MRT V2 ... Typical Drone Issue?

I know this is very subjective but I didn't think it's supposed to be this bad, is it?

Went to a reputable muffler shop here in Raleigh today, was actually recommended by another member. Had the MRT installed and I have so much drone that the vibration is rattling my dash. The shop welded the exhaust, I'm not sure what else they could have done or not do? but it's so bad that if I wasn't headed to work I would of had them take it off today! It sounds great on the outside but inside my car is ridiculous.

I did buy the MagnaFlow X pipe when I bought the exhaust from Apex but its not magical is it? I wanted to try the exhaust by itself to see if it bothered me before installing the X Pipe but at this point I have serious doubts it will be the answer.


Any ideas as to why I'm getting so much vibration?

Last edited by RedHotRS; 05-25-2013 at 12:09 AM.
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Old 05-24-2013, 10:26 PM   #2
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X pipe will help big time....
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Old 05-24-2013, 10:31 PM   #3
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Res X-pipe will help big time but also kill a lot of your volume. I would recommend to leave if as is for a little while and let them break in. They will settle down a little and you will also get a used to it. If you don't you could always look at doing J pipes to kill the drone
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Old 05-24-2013, 11:11 PM   #4
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I had a Loudmouth 1 on my V6 Camaro. Much more drone then the MRT considering it doesnt have any mufflers. I for got a Magnaflow x-pipe. My god does that thing help with drone! The only down side is it made the whole exhaust quieter. But not too much. Still, its amazing now. If you want I can give you the part number and a link to my thread about drone.
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Old 05-24-2013, 11:48 PM   #5
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Really? The X-Pipe IS magical? Lol

Wow, I would of thought something was wrong with my install or the exhaust itself. Never would of imagined it would be this bad.

Does it really get that much quieter after break in? If the XPipe makes it that quiet than whats the sense? Is there any performance value to an axle back exhaust? Now I'm wondering how much louder it will be after my CAI is installed?

Sorry if these questions seem stupid, obviously I have a lot to learn
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Old 05-25-2013, 12:03 AM   #6
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Quote:
Originally Posted by RedHotRS View Post
Really? The X-Pipe IS magical? Lol

Wow, I would of thought something was wrong with my install or the exhaust itself. Never would of imagined it would be this bad.

Does it really get that much quieter after break in? If the XPipe makes it that quiet than whats the sense? Is there any performance value to an axle back exhaust? Now I'm wondering how much louder it will be after my CAI is installed?

Sorry if these questions seem stupid, obviously I have a lot to learn
Same questions as you! I heard about the J pipes.. how much extra are those??
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Old 05-25-2013, 12:48 AM   #7
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Quote:
Originally Posted by RedHotRS View Post
I know this is very subjective but I didn't think it's supposed to be this bad, is it?

Went to a reputable muffler shop here in Raleigh today, was actually recommended by another member. Had the MRT installed and I have so much drone that the vibration is rattling my dash. The shop welded the exhaust, I'm not sure what else they could have done or not do? but it's so bad that if I wasn't headed to work I would of had them take it off today! It sounds great on the outside but inside my car is ridiculous.

I did buy the MagnaFlow X pipe when I bought the exhaust from Apex but its not magical is it? I wanted to try the exhaust by itself to see if it bothered me before installing the X Pipe but at this point I have serious doubts it will be the answer.


Any ideas as to why I'm getting so much vibration?
How long has it been since the installation? There is a 1 week break-in period. Many people are nervous when it just comes out of the shop, but hold judgement for a few days to a week.

Quote:
Originally Posted by RedHotRS View Post
Really? The X-Pipe IS magical? Lol

Wow, I would of thought something was wrong with my install or the exhaust itself. Never would of imagined it would be this bad.

Does it really get that much quieter after break in? If the XPipe makes it that quiet than whats the sense? Is there any performance value to an axle back exhaust? Now I'm wondering how much louder it will be after my CAI is installed?

Sorry if these questions seem stupid, obviously I have a lot to learn
After 1 week if it has too much drone or too loud for your taste, an X-pipe is a good solution to tame it down slightly. CAI will not make it significantly louder. It is noticeable with a better tone but only slightly.

All of our MRT customers absolutely love their exhaust, despite initial concerns. We had a customer call wanting to return after it came out of the shop. We told him about the break-in period and if he was still unhappy in 1 week we would issue a full refund. He called back 3 days later just to praise the system.

Last edited by AutoAgenda; 05-25-2013 at 12:58 AM.
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Old 05-25-2013, 01:26 AM   #8
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I think it sounds good with the drone. It's not a Prius. Lol
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Old 05-25-2013, 01:40 AM   #9
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How long has it been since the installation? There is a 1 week break-in period. Many people are nervous when it just comes out of the shop, but hold judgement for a few days to a week.



After 1 week if it has too much drone or too loud for your taste, an X-pipe is a good solution to tame it down slightly. CAI will not make it significantly louder. It is noticeable with a better tone but only slightly.

All of our MRT customers absolutely love their exhaust, despite initial concerns. We had a customer call wanting to return after it came out of the shop. We told him about the break-in period and if he was still unhappy in 1 week we would issue a full refund. He called back 3 days later just to praise the system.
Well that's good news, I have 6 days to go on my week long break in, lol. I was that guy today, I drove about 10 miles to work after the install and was ready to turn around.

I put a sub in my car a week ago and haven't had any issues whatsoever with rattles or vibrations. The sub had kicked ass till today, then it became almost non exsistent at 18-2k.

I know it sounds fantastic outside and turned a lot of heads today but the vibrations throughout my car were crazy.

Thanks for the optimism
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Old 05-25-2013, 10:26 AM   #10
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I think it sounds good with the drone. It's not a Prius. Lol
Lol, no it's not a Prius.

However I didn't buy a rattle can either, lol.
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Old 05-25-2013, 11:09 AM   #11
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oh my, I have my intake and exhaust install planned for june. This post just about scared me. lol

Noise, here I come. Will have a nice quiet 705 mile drive in, then have a loud 705 mile drive home. I hope I survive. lol who knows, I could kill my 1 week burn in to 1 day.
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Old 05-25-2013, 11:45 AM   #12
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It took me three weeks to get use to mine it will quiet ..down I think you will like after you drive it and you put a 1000 miles or so on it
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Old 05-25-2013, 12:06 PM   #13
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You should be fine... I put the MRT V2's on about 6 or 7 weeks ago, the first thing I did was to take the car on the freeway and drove it in clean traffic for about an hour. I ran the car between 60-85 mph, all the while I was watching the tachometer and getting bench marks for drone and other in cabin noise. As many have posted here, the first few minutes in the car can be startling anytime a performance mod has been made, CAI's TB's Exhaust, each bring a different perspective and driving experience to the table. There are a few reasons for this, however the most important to note in my opinion is that the car is so quiet from the factory, any cabin noise at all can seem abnormal. This is why you're reading a lot of posts which suggest that you give it some time and you'll get use to the noise level in the cabin. I 100% agree with this advice, in fact while driving in some conditions you'll forget the mod was even put on... until you jump on it a little bit, then your world will be as it should be again... it took me about 2 weeks of listening and watching where the drone kicked in, where I was in the RPM range and as it would start to fade away etc. I've been in engineering and construction for my entire adult life, so how things work is important to me, to be assured that they are working correctly is paramount.

So, having said all of this and I do apologize for the long read... After driving the car for almost two month with the MRT V2's, I really liked the sound, the drone was very minimal however, I do a lot of freeway driving and like my music as well. So for me personally, I decided to have the magnaflow x-pipe resonator put on. I did that just yesterday, May 24th.
(Thank you Chase from Apex, for all your help and advice). I really like the results... there is no raspy sound at all, no drone at any speed or RPM range. I really can't tell the difference in sound, if there is any deterioration, I'm being very honest when I say my ears can't pick it up. What I did notice is that the X-Pipe itself brings a noticeable smoothness to the acceleration, not throttle response, the engine is breathing better and the exhaust is balanced out by the x-pipe. For what I was hoping to achieve, it was worth every dime. It cost me about 200 dollars to have both the MRT's and the X-Pipe installed, it took about 2 hours in total. I don't know if that price is good, bad or somewhere in the middle, however the shop that did it is a local ma and pa who have been in business for about 25 years and I prefer to give my money to the small shop owners whenever I can. At the end of the day, it comes down to preference, you'll hear that all over the place and it's true. Just give yourself sometime, magnaflow isn't going away tomorrow, you've got time to decide what is best for you. Good luck!
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Old 05-25-2013, 12:08 PM   #14
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Yeah I don't think I'm describing my problems very clearly. I don't have a problem with the "tone" of my exhaust, the tone sounds great!

What I do have a problem with is the vibrations that are rattling my interior. Most people report drone issues only around 70 mph, I have vibration running through my car at all speeds in the 15-2k range. I just drove to work and watched the tach, even at low speeds I got vibrations that ran through my entire car.

Does everyone experience this in the beginning? 70 mph is one thing but I don't recall people having rattling dashboards even at slow speeds.

Thanks everyone.
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Old 05-25-2013, 12:17 PM   #15
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Originally Posted by Gen-X45 View Post
You should be fine... I put the MRT V2's on about 6 or 7 weeks ago, the first thing I did was to take the car on the freeway and drove it in clean traffic for about an hour. I ran the car between 60-85 mph, all the while I was watching the tachometer and getting bench marks for drone and other in cabin noise. As many have posted here, the first few minutes in the car can be startling anytime a performance mod has been made, CAI's TB's Exhaust, each bring a different perspective and driving experience to the table. There are a few reasons for this, however the most important to note in my opinion is that the car is so quiet from the factory, any cabin noise at all can seem abnormal. This is why you're reading a lot of posts which suggest that you give it some time and you'll get use to the noise level in the cabin. I 100% agree with this advice, in fact while driving in some conditions you'll forget the mod was even put on... until you jump on it a little bit, then your world will be as it should be again... it took me about 2 weeks of listening and watching where the drone kicked in, where I was in the RPM range and as it would start to fade away etc. I've been in engineering and construction for my entire adult life, so how things work is important to me, to be assured that they are working correctly is paramount.

So, having said all of this and I do apologize for the long read... After driving the car for almost two month with the MRT V2's, I really liked the sound, the drone was very minimal however, I do a lot of freeway driving and like my music as well. So for me personally, I decided to have the magnaflow x-pipe resonator put on. I did that just yesterday, May 24th.
(Thank you Chase from Apex, for all your help and advice). I really like the results... there is no raspy sound at all, no drone at any speed or RPM range. I really can't tell the difference in sound, if there is any deterioration, I'm being very honest when I say my ears can't pick it up. What I did notice is that the X-Pipe itself brings a noticeable smoothness to the acceleration, not throttle response, the engine is breathing better and the exhaust is balanced out by the x-pipe. For what I was hoping to achieve, it was worth every dime. It cost me about 200 dollars to have both the MRT's and the X-Pipe installed, it took about 2 hours in total. I don't know if that price is good, bad or somewhere in the middle, however the shop that did it is a local ma and pa who have been in business for about 25 years and I prefer to give my money to the small shop owners whenever I can. At the end of the day, it comes down to preference, you'll hear that all over the place and it's true. Just give yourself sometime, magnaflow isn't going away tomorrow, you've got time to decide what is best for you. Good luck!
Thank you for your time and input. It's greatly appreciated! Seems like all the threads I read before buying the MRT all reported issues only at 70mph. Like I said I like the tone, just hate the rattling in my dash/doors/wherever.

I already have the XPipe so I will definitley give that a try if needed after my breakin period.

Again thanks to all, I appreciate the feedback and I'm guessing I will become another satisfied owner in time.
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Old 05-25-2013, 12:49 PM   #16
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Quote:
Originally Posted by RedHotRS View Post
Yeah I don't think I'm describing my problems very clearly. I don't have a problem with the "tone" of my exhaust, the tone sounds great!

What I do have a problem with is the vibrations that are rattling my interior. Most people report drone issues only around 70 mph, I have vibration running through my car at all speeds in the 15-2k range. I just drove to work and watched the tach, even at low speeds I got vibrations that ran through my entire car.

Does everyone experience this in the beginning? 70 mph is one thing but I don't recall people having rattling dashboards even at slow speeds.

Thanks everyone.
Well that doesn't sound right. I would do a visual inspection, make sure it looks properly installed from the MRT instructions. Or take it back to the shop and let them know the situation. If still unhappy, contact MRT or distributor for advice. Then definitely return it if problem continues.
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Old 05-25-2013, 12:53 PM   #17
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Just wait, it will mellow
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Old 05-25-2013, 01:21 PM   #18
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We are all learning here RedHotRS, back in the day I had a 1969 GTO and could have told you anything and everything about the mod's that went with that era. However, I got married, raised a family and just didn't have the time or money to spend on dream cars and how to modify them. For all of my life's experience, the Gen 5 Camaro is new to me. I rely on people like Chase from Apex because this is how he pay's his bills and he knows his craft, that and I don't think he sleeps lol. The man is always working... These forms are great, you get a lot of people out here that care about their cars, they want them to run well and strong.

Ok, so does the car quiet down after break in... again, I'm no expert however I do understand physics to a decent extent and to that end. I'd say that the term "break-in" is subjective in that there are no moving parts to your axle back system. What does happen is your cars computer and other governing sensors make critical adjustments to account for the revisions that have been made to the exhaust system. There are too many to list here, just be assured that one of the reasons that we pay 500-700 dollars for what amounts to about 4 feet of bent pipe and a two baffle chambers is because a lot of research and development went into making a proprietary system that can compete in a very difficult market. It is your cars adjustments that tame the sound because how it is producing energy and making exhaust has changed.

As I noted in my previous e-mail, the x-pipe resonator really does seem to balance out the exhaust. I've only had it on my car for a day but it doesn't seem to be robbing the car of sound to any great extent. It is a different sound, the sound is smoother upon acceleration, however it is still impressive when you consider that my car isn't a V8, it's a V6 manual 6-speed.

No, you're not going to see performance gains with an axle back system, the car does lose a few lbs. and every little bit helps because the car weights a lot. The CAI will give you some extra hp, you will notice a difference in sound there as well, It's a different type of sound though. When you are talking CAI's you're speaking to air flow coming in, when you're talking about exhaust, the flow is exiting the car. How your cars (MAF)mass air flow sensor hands the information off to the (ECU) Engine Control Unit will increase the sound, your axel back system is helping your car to exhale, your CAI is helping your car to breathe in.
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Old 05-25-2013, 02:05 PM   #19
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Just read your other post... no, my car did not vibrate at all. I'm trying to think what would cause that because you're only axle back on the V2 system. The only thing that I can think of is if the pipes themselves were not hung correctly on the isolation pads, that could cause problems.
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Old 05-25-2013, 03:19 PM   #20
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Mayb I'm one of the few people that do but I love drone of exhausts. I've always had loud exhaust on every vehicle I had. My kawasaki ninja is the loudest. For about a week I had just a mid pipe on it. Man was it loud!!! It kinda sounded like a F-1 car when I started going from a stop. I only put my muffler back on cause I was tired of being pulled over for it being to loud.
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Old 05-25-2013, 04:16 PM   #21
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I definitely had a similar problems with mine as well. Around that range of rpm, my interior would vibrate and coins in the drink holder would make noise from hitting each other from the vibration. I waited about 2 weeks just to see if it will settle down but it was still the same. Mine was bought by one of the forum members here so it was already driven greater than 1000 miles from the previous owner.

What I have done is go with the J-pipe route, and thanks to the instructions from fellow members the J-pipe made a tremendous difference. I almost took it out to replace it back with the stock but it worked out great!
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Old 05-25-2013, 10:58 PM   #22
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Well that doesn't sound right. I would do a visual inspection, make sure it looks properly installed from the MRT instructions. Or take it back to the shop and let them know the situation. If still unhappy, contact MRT or distributor for advice. Then definitely return it if problem continues.
Definitely will do, I'm not sure they even bothered with instructions. I figured they knew what they were doing as they were recommended. I'm guessing the instructions are in the packet with the hardware, which was never opened. Thanks

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Just read your other post... no, my car did not vibrate at all. I'm trying to think what would cause that because you're only axle back on the V2 system. The only thing that I can think of is if the pipes themselves were not hung correctly on the isolation pads, that could cause problems.
That definitely makes sense, I will be at that shop Tuesday before work and try to see what they can do or didn't do the first time. Again, I do appreciate yours and everyone's help.

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Mayb I'm one of the few people that do but I love drone of exhausts. I've always had loud exhaust on every vehicle I had. My kawasaki ninja is the loudest. For about a week I had just a mid pipe on it. Man was it loud!!! It kinda sounded like a F-1 car when I started going from a stop. I only put my muffler back on cause I was tired of being pulled over for it being to loud.
Yeah I hear you brother, I've had my share of crotch rockets with loud exhausts then got old and had a couple of Harley's that would wake the dead, lol. Loud isn't my problem, I hate vibration that rattles the car.

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I definitely had a similar problems with mine as well. Around that range of rpm, my interior would vibrate and coins in the drink holder would make noise from hitting each other from the vibration. I waited about 2 weeks just to see if it will settle down but it was still the same. Mine was bought by one of the forum members here so it was already driven greater than 1000 miles from the previous owner.

What I have done is go with the J-pipe route, and thanks to the instructions from fellow members the J-pipe made a tremendous difference. I almost took it out to replace it back with the stock but it worked out great!
Thanks for that, ill definitely keep it in mind.

Again, thanks everyone!
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Old 05-25-2013, 11:54 PM   #23
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Yeah I don't think I'm describing my problems very clearly. I don't have a problem with the "tone" of my exhaust, the tone sounds great!

What I do have a problem with is the vibrations that are rattling my interior. Most people report drone issues only around 70 mph, I have vibration running through my car at all speeds in the 15-2k range. I just drove to work and watched the tach, even at low speeds I got vibrations that ran through my entire car.

Does everyone experience this in the beginning? 70 mph is one thing but I don't recall people having rattling dashboards even at slow speeds.

Thanks everyone.
I also have Flowmasters and there is alot of drone from 18-2200 range nomatter what speed I am in .I installed J pipes but couldn't help it at all . Still looking for a solution
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Old 05-26-2013, 12:50 AM   #24
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Let me know how it goes on Tuesday, you don't hear many problems with the V2 system so when you do it is a concern. Is your car a 2012 or 2013?

On another note, I'm day two with the magnaflow x-pipe and the sound is about 5% less, I'm thinking that it is just the rasp that has been filtered out. When I get on it, the car talks back loud and clear. For my ears it's perfect and the car runs stronger on the low end as well. I'm pretty happy with it, other than a new throttle body that I have coming I think I'll leave well enough alone. I have a drop in K&N air filter, the MRT V2 axle back exhaust and the magnaflow x-pipe. I was thinking about a CAI however the car is running well enough without it so that may or may not come later. I need to do somemore research on the Richmond 3.55 gear swap, could be better money spent on something like that from a performance stand point.
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Old 05-26-2013, 01:10 AM   #25
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Mine is a 2013. If the MRTs are installed and hung properly ill probably just go ahead and have my Xpipe installed while I'm there.
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