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Old 02-08-2011, 01:53 PM   #1
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LG Motorsports Headers w/Magnaflow full 3" competition system

Im not a fan of the neckdown 3" to 2.5" with some of the header/cat(midpipe) systems out there. Is it possible to run the LG Pro headers 1 7/8 with or without cats 3" with the full magnaflow 3" system part no. 16483??? I have a good deal on the Magnaflow system, but I want to run the LG headers. Do they offer their system with just headers and cats w/o the x-pipe?

Thanks,

DH
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Old 02-08-2011, 02:35 PM   #2
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Quote:
Originally Posted by DHSS View Post
Im not a fan of the neckdown 3" to 2.5" with some of the header/cat(midpipe) systems out there. Is it possible to run the LG Pro headers 1 7/8 with or without cats 3" with the full magnaflow 3" system part no. 16483??? I have a good deal on the Magnaflow system, but I want to run the LG headers. Do they offer their system with just headers and cats w/o the x-pipe?

Thanks,

DH
Yep. We can do that for you.

Let us know if you're interested and I'll get you a quote sir.

Thanks,
Ivan @ Southwest Speed
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Old 02-08-2011, 02:59 PM   #3
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Ive heard with Kooks and ARH that there is a section that will go back to 2.5in before the cat-back, is this true? If so, Do the LG headers do this as well?
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Old 02-08-2011, 03:10 PM   #4
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I have the kooks and the magnaflow exhaust on my car. I just had my muffler guy put in the hiflo cats and take the 2.5 piece out. Looks awesome and sounds sweet. Let me know if you need someone with experience to do it. Much cheaper than doing LG. I got a great deal so that is why I did it.
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Old 02-08-2011, 03:20 PM   #5
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Garceeya,

Can you elaborate on that a little more. Did you completely do away with the pipe from ARH? You lost me there a little bit. When you say he put in the peice, are you saying he installed 3in cats right after the headers and then connected them to your cat-back? Thanks for the help.

DH
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Old 02-08-2011, 03:21 PM   #6
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Ivan,

Are the cats and offroad pipes for the LG LT's 3in inlet, 3in outlet?

Thanks,

DH
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Old 02-08-2011, 03:22 PM   #7
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All these gains im seeing from LT's and cat-back and CAI has me harder than chinese arithmetic!!!
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Old 02-08-2011, 03:45 PM   #8
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Quote:
Originally Posted by Ivan @ Southwest Speed View Post
Yep. We can do that for you.
I'm assuming you are able to do that by getting just the LTs from LG and then selling the HF Cat, from say KOOKS, that goes from 3"-2.5"?

Or....is LG now selling a HF cat that is 3"-2.5"?


Quote:
Originally Posted by DHSS View Post
Ive heard with Kooks and ARH that there is a section that will go back to 2.5in before the cat-back, is this true? If so, Do the LG headers do this as well?
Yes....unless you buy the KOOKS complete system. Typically when you buy just the LTs with HF cats or an off-road pipe it connection pipe between them will be a 3" inlet and 2.5" outlet. That's where it will connect to the cat-back which will usually have a 2.5" inlet even if it's a 3" exhaust.

Now, if you buy a complete kit....for example KOOKS.....thier connection pipe will be 3" in and out. That's because they know you are going to be hooking it up at their 3" cat-back which will have a 3" inlet.

LG was the same way but might have changed by now.


Quote:
Originally Posted by DHSS View Post
All these gains im seeing from LT's and cat-back and CAI has me harder than chinese arithmetic!!!
LTs/Tune/Exhaust change the car dramatically!

Mine went from 370 rwhp to 411 rwhp. That's with 1 3/4" headers. I probably would've been closer to 415 if I had 1 7/8".
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Old 02-08-2011, 03:52 PM   #9
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Here is an example. When you buy a set of headers with connection pipes (either HF cats or an Off-road pipe) they will usually come as a 3" inlet and 2.5" outlet.

That's because they have to assume you might hook it to the factory cat-back......which is a 2.5" exhaust.

Same goes in reverse. When a Mfg makes a cat-back, they have to assume you are going to hook it to the factory connection pipe. Which is 2.5" setup. That's why pretty much all cat-backs, even 3" ones, have a 2.5" inlet....to connect to the factory connection pipe.

Unless.....you buy a complete setup which is headers, connection pipe, cat-back. They usually make those in a 3" all the way through.

Here is a pic of some KOOKS headers from Maryland Speed. Notice the 2 HF cats in the center. One end is 3"...the other 2.5".
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Last edited by caverman; 02-08-2011 at 04:13 PM.
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Old 02-08-2011, 03:58 PM   #10
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Quote:
Originally Posted by DHSS View Post
Ive heard with Kooks and ARH that there is a section that will go back to 2.5in before the cat-back, is this true? If so, Do the LG headers do this as well?
The LG HF Cat is a 3" in and out.

Quote:
Originally Posted by Garceeya View Post
I have the kooks and the magnaflow exhaust on my car. I just had my muffler guy put in the hiflo cats and take the 2.5 piece out. Looks awesome and sounds sweet. Let me know if you need someone with experience to do it. Much cheaper than doing LG. I got a great deal so that is why I did it.
Exactly sir!


Quote:
Originally Posted by DHSS View Post
Ivan,

Are the cats and offroad pipes for the LG LT's 3in inlet, 3in outlet?

Thanks,

DH
Yessir.

Quote:
Originally Posted by DHSS View Post
All these gains im seeing from LT's and cat-back and CAI has me harder than chinese arithmetic!!!
LOL...it can be tough sometimes. Worth the work.

Quote:
Originally Posted by caverman View Post
I'm assuming you are able to do that by getting just the LTs from LG and then selling the HF Cat, from say KOOKS, that goes from 3"-2.5"?

Or....is LG now selling a HF cat that is 3"-2.5"?




Yes....unless you buy the KOOKS complete system. Typically when you buy just the LTs with HF cats or an off-road pipe it connection pipe between them will be a 3" inlet and 2.5" outlet. That's where it will connect to the cat-back which will usually have a 2.5" inlet even if it's a 3" exhaust.

Now, if you buy a complete kit....for example KOOKS.....thier connection pipe will be 3" in and out. That's because they know you are going to be hooking it up at their 3" cat-back which will have a 3" inlet.

LG was the same way but might have changed by now.




LTs/Tune/Exhaust change the car dramatically!

Mine went from 370 rwhp to 411 rwhp. That's with 1 3/4" headers. I probably would've been closer to 415 if I had 1 7/8".
LG isn't selling the 3" in/2.5" with their system. One could however get the headers only and then suppliment with a 3"/2.5" HF Cat from say, Magnaflow and roll out that way.


Quote:
Originally Posted by caverman View Post
Here is an example. When you buy a set of headers with connection pipes (either HF cats or an Off-road pipe) they will usually come as a 3" inlet and 2.5" outlet.

That's because they have to assume you might hook it to the factory cat-back......which is a 2.5" exhaust.

Same goes in reverse. When a Mfg makes a cat-back, they have to assume you are going to hook it to the factory connection pipe. Which is 2.5" setup. That's way pretty much all cat-backs, even 3" ones, have a 2.5" inlet....to connect to the factory connection pipe.

Unless.....you buy a complete setup which is headers, connection pipe, cat-back. They usually make those in a 3" all the way through.

Here is a pic of some KOOKS headers from Maryland Speed. Notice the 2 HF cats in the center. One end is 3"...the other 2.5".
Caverman-Great pic and thank you for contributing to the thought process here for everyone so that they can see what is meant by 3" in/2.5" out.

Here to help everybody...one Camaro at a time.

Ivan
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Old 02-08-2011, 04:08 PM   #11
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Quote:
Originally Posted by DHSS View Post
Im not a fan of the neckdown 3" to 2.5" with some of the header/cat(midpipe) systems out there. Is it possible to run the LG Pro headers 1 7/8 with or without cats 3" with the full magnaflow 3" system part no. 16483??? I have a good deal on the Magnaflow system, but I want to run the LG headers. Do they offer their system with just headers and cats w/o the x-pipe?

Thanks,

DH

If money wasn't an issue I would go LG complete exhaust. There setup looks and sounds the best IMO.

This could have all changed by now but back when they first came out I was talking with them and they were selling just their header for about $1k. A set of HF cats will be about $350 - $400 or just a connection pipe was about $180. Then to have them ceramic coated was another $275.

So for headers, HF cats, and coating it was going to be close to $1700....that's not even with a cat-back. Then being that they are in TX there is another 8% tax. Same with there complete system....about $2400 + 8% tax + $275 coating. It was just out of my budget.

For a while LG was doing a free install/tune if you bought their complete system. That's a sweet deal but still it was just too much for me.

If you have the money then definately go LG and go through Ivan and at least you can save yourself the tax. Plus he seems to be a stand up guy and an active vendor.

Although I don't have any acutal experience with LG stuff, their headers/cat-back look and sound awesome!


I will throw in one last piece. Don't let the 2.5" inlet on a 3" exhaust bother you. There are plenty of fast Camaros out there running 3" cat-backs that have a 2.5" inlet. The difference in power from the 2.5" vs 3" is going to be extremely minimal unless you are running a bunch of HP. The big difference is really going to come in the sound. The 3" is going to have a deeper rumble over a 2.5".

Keep the Magnaflow since you have it and pick up some Headers and connection pipes. Spend your savings on a good tune.
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Last edited by caverman; 02-08-2011 at 04:18 PM.
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Old 02-08-2011, 07:57 PM   #12
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You guys are a big help, I'm stuck between Kooks/cats/3" magnaflow or full 3" LG System. The LG sounds so good, but I've had several Magnaflow systems And I know they don't have a drone and I'm worried about drone with LG.
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Old 02-08-2011, 09:23 PM   #13
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Old 02-09-2011, 04:50 PM   #14
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Quote:
Originally Posted by caverman View Post
If money wasn't an issue I would go LG complete exhaust. There setup looks and sounds the best IMO.

This could have all changed by now but back when they first came out I was talking with them and they were selling just their header for about $1k. A set of HF cats will be about $350 - $400 or just a connection pipe was about $180. Then to have them ceramic coated was another $275.

So for headers, HF cats, and coating it was going to be close to $1700....that's not even with a cat-back. Then being that they are in TX there is another 8% tax. Same with there complete system....about $2400 + 8% tax + $275 coating. It was just out of my budget.

For a while LG was doing a free install/tune if you bought their complete system. That's a sweet deal but still it was just too much for me.

If you have the money then definately go LG and go through Ivan and at least you can save yourself the tax. Plus he seems to be a stand up guy and an active vendor.

Although I don't have any acutal experience with LG stuff, their headers/cat-back look and sound awesome!


I will throw in one last piece. Don't let the 2.5" inlet on a 3" exhaust bother you. There are plenty of fast Camaros out there running 3" cat-backs that have a 2.5" inlet. The difference in power from the 2.5" vs 3" is going to be extremely minimal unless you are running a bunch of HP. The big difference is really going to come in the sound. The 3" is going to have a deeper rumble over a 2.5".

Keep the Magnaflow since you have it and pick up some Headers and connection pipes. Spend your savings on a good tune.
I love the sound of the full LG system. Im really leaning towards this full system, b/c I plan to do a TVS soon and the 3" all the way back will be good for the extra power.
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