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

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Old 05-29-2013, 10:39 AM   #1
Freyguy08
 
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Question Anybody have this setup?

This weekend I will be installing the Magnaflow 3 inch competition series stainless catback exhaust system. I already have the K & N Typhoon CAI and a Diablo InTune. I have been through a lot of posts from you guys about the 3 different mods, but I have yet to find one with this setup. I was wondering if anybody had this and if so, what they saw in power gains. I will tune it with the Diablo again once the exhaust is on but I'm not going to dyno it until I supercharge it next year.
These are just the first few steps for it. One day I will have it ready to rival my fathers 638 HP ZR1. Thanks!
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Old 05-29-2013, 10:48 AM   #2
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Should add a set of long tubes, to make it noticeable, with a custom tune. I think your butt dyno would be more impressed.
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Old 05-29-2013, 11:03 AM   #3
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Yeah the headers are next on the list performance wise. I know I want a supercharged endgame and I want to build to that but honestly I have just been reading through these forums to see what the best first steps are. They have been very helpful! Any tips on what else to get before the SC would be greatly appreciated!!
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Old 05-29-2013, 11:07 AM   #4
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Any exhaust mods after the cats is purely for sound, unless you're moving A LOT of air. With that being said, you shouldn't notice any increase in actual performance with the catback. It will sound like you picked up 50whp but you didn't. No tuning needed after a catback either.
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Old 05-29-2013, 11:09 AM   #5
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Biggest butt dyno mods for me were headers with high flow cats and lighter wheels. Funnest were sway bars and subframe bushings. Have fun man!
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Old 05-29-2013, 01:38 PM   #6
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Quote:
Originally Posted by axis View Post
Any exhaust mods after the cats is purely for sound, unless you're moving A LOT of air. With that being said, you shouldn't notice any increase in actual performance with the catback. It will sound like you picked up 50whp but you didn't. No tuning needed after a catback either.


If anything you might feel like it loses a step since you are going to a 3" without more air coming in...
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Old 05-29-2013, 01:42 PM   #7
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Doesn't the CAI introduce more air?? Or is that not enough?
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Old 05-29-2013, 01:47 PM   #8
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Originally Posted by Freyguy08 View Post
Doesn't the CAI introduce more air?? Or is that not enough?
Yes and no. Not enough to gain from an Non-Header exhaust modification. It is more for the sound and the pretty tips then it is for performance. If you gain any at all you are lucky. But it is still a favorite mod because it helps your car sound the way it should.
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Old 05-29-2013, 01:48 PM   #9
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The OEM 2.5in tubing is more than enough to handle most mods. It's only when you're pushing enough air to produce around 550+whp will a bigger exhaust really start to help. This is a testament to how much research GM put into this car.
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Old 05-29-2013, 02:06 PM   #10
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Thanks guys I appreciate the info! I can't wait to be SCed...
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Old 05-29-2013, 02:10 PM   #11
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A good blower cam with some heads will help your car breathe better once that s/c goes on there and it will give you solid gains while being n/a as well.
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