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Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 10-03-2010, 05:05 PM   #1
Malan35
 
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High Flow Cats Question

I have the mufflers deleted and I LOVE the sound. I am considering making it just a little louder but also would love some more power. So I am considering high flow cats. I have direct access to a shop so I can bolt the oem cats back in whenever I need to go to the dealer.
My question is this, will my exhaust be obnoxiously loud with this setup? I do not have much drone at all now, will it increase the drone?
Thanks for your help
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Old 10-03-2010, 05:14 PM   #2
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its will be allot louder .... i would say twice as loud .. i would do... i like loud
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Old 10-03-2010, 06:10 PM   #3
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Def louder.

Also consider that most Hi Flows are weld on so you might not be able to "switch back" quite as easily.

Now...if we could just get you set up with some LTs....we'd be really LOUD!!!!



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Old 10-03-2010, 07:02 PM   #4
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Solo Performance high flow cats will bolt right into stock location and you can always switch back if you want. They won't throw a cel code either! Definatly LOUDER and about 20 hp increase, according to Solo. I felt the improvement but didn't dyno! I ended up adding a set of free flow resonators to quiet it down. Now it's louder than the cat back alone but a little quieter than with the high flows!
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Old 10-03-2010, 10:06 PM   #5
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Thanks for your input guys! And I would love a set of LT's but with cost, and they aren't as easy to replace with oem if i ever need warranty work, they don't seem like the most sensible mod at this point in time. And ssmike, I was only considering Solo high flow cats basically from all of you're posts that I've seen.
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Old 10-04-2010, 08:01 AM   #6
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Just to add another question about the solo cats, will you be able to add LT headers to them at a later date. Maybe some Kooks.
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Old 10-04-2010, 09:04 AM   #7
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Just to add another question about the solo cats, will you be able to add LT headers to them at a later date. Maybe some Kooks.
No. Any LT's will need different cats because the headers are longer and won't mate up to stock locationu.
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Old 10-04-2010, 09:56 AM   #8
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Just to add another question about the solo cats, will you be able to add LT headers to them at a later date. Maybe some Kooks.
allot of people get high flow cats then maybe later will had LTs... i got high flow cats because i just got a corsa exhaust and didn't wanna spend another grand on LTs. so i spent like 400 on some JBA cats and love them.. but i now am making the money back, so i will be able to add LTs next year
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Old 10-04-2010, 12:27 PM   #9
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Quote:
Originally Posted by Malan35 View Post
I have the mufflers deleted and I LOVE the sound. I am considering making it just a little louder but also would love some more power. So I am considering high flow cats. I have direct access to a shop so I can bolt the oem cats back in whenever I need to go to the dealer.
My question is this, will my exhaust be obnoxiously loud with this setup? I do not have much drone at all now, will it increase the drone?
Thanks for your help
Let us know if you decide to go through w/ this. I've been debating the exact same setup. You could always try it out first and, if it's too loud, you can always add a muffler(s) later. I know of an excellent exhaust shop in Margate that can do just about anything you want, compete w/ mandrel-bent pipe done right there in the shop.
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Old 10-04-2010, 03:06 PM   #10
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Way louder, I just Did jba's last week. Omg, its loud. Kinda raspy though....
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Old 10-04-2010, 03:22 PM   #11
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Just so you get the idea of what it sounds like

and also

I think youll get drone but i havent heard this setup in person so I really wouldnt know
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Old 10-04-2010, 03:49 PM   #12
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Yea, I ended up adding these Solo resonators
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Old 10-04-2010, 05:57 PM   #13
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Yea, I ended up adding these Solo resonators

I'm having mine put on this Thursday.
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Old 10-05-2010, 10:19 PM   #14
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Thanks for the info guys! I am gonna take the time to make the decision. Holidays are coming, also considering going to Halloween Horror nights. Money is going to be a little tight.
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Old 10-05-2010, 10:42 PM   #15
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Sorry, don't mean to hijack your thread malan, but I had a question which is relative to the topic...

Are high flows louder than LTs? I like the tone of my exhaust, but want a volume increase. Id like to take the leap straight to LTs while I can afford it for the performance increase as well...

The set I want is kooks LTs with cats...what is the difference between those cats and hi flows? and how would the sound be different between the two options?
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Old 10-06-2010, 10:26 AM   #16
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Originally Posted by brantley847 View Post
Sorry, don't mean to hijack your thread malan, but I had a question which is relative to the topic...

Are high flows louder than LTs? I like the tone of my exhaust, but want a volume increase. Id like to take the leap straight to LTs while I can afford it for the performance increase as well...

The set I want is kooks LTs with cats...what is the difference between those cats and hi flows? and how would the sound be different between the two options?
No worries. I'm interested in what others have to say. I think that the lt.'s will give you the most sound/hp gain. But you don't get the full performance potential of the headers without the compliment of the cats.
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Old 10-06-2010, 10:46 AM   #17
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Well PQ has no Cats and longtubes and it is louder than heck. To loud for me so I am thinking of just highflow cats and a tune for my CAI intake.
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