01-08-2011, 04:07 PM | #1 |
Drives: 2011 2SS L99, 2010 LT RS Join Date: Mar 2010
Location: NY (USA) ZH (Switzerland)
Posts: 437
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Thinking about going 2.5" the entire System
As the title says I'm thinking about goingt 2.5" the entire system.
I can buy the complete exhaust piping from a friends 2010 SS. Here is what I already have: - Injen short ram intake - BBK ceramic coated longtube headers - BBK highflow cats - Borla Pro XS mufflers (2.25 in/out) http://www.camaro5.com/forums/showth...bk+injen+borla I am very happy with my current setup and want to keep the sound exactly the way it is now. But I was wondering how it affects the HP/lb ft when you go from 2.25" to 2.5". Will there be any gains together with my components? P.S: If it is worth the conversion performance wise but will change the sound I would probably add a resonated X-pipe. |
01-08-2011, 08:34 PM | #2 |
Back on the dino-juice
Drives: '10 LS + a few more Join Date: May 2010
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I don't think you'll see much power difference. I can see increasing it for more exhaust flow in a forced induction/nitrous fed set-up.
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01-08-2011, 09:19 PM | #3 | |
Drives: 2011 2SS L99, 2010 LT RS Join Date: Mar 2010
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Quote:
Thanks for your post. So you think it is not worth it? I thought more diameter = less backpressure. But I also read that the 2.25" diameter is the perfect for the V6. But then again - with stock intake, stock headers, stock mufflers, ... I'm realy not shure if I should give it a try. |
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01-08-2011, 09:45 PM | #4 |
Drives: 2LT/RS Join Date: Jan 2010
Location: Massapequa, NY
Posts: 69
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You might see some difference with the LT headers. If you want the 2.5" system, go for it. More flow can never hurt!
I don't know what the SS system sounds like, but I've got the 2.5" cherry bomb exhaust on mine and it's worth it even if only for the sound. |
01-08-2011, 09:58 PM | #5 |
Drives: 2011 2SS L99, 2010 LT RS Join Date: Mar 2010
Location: NY (USA) ZH (Switzerland)
Posts: 437
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Could it be that with the bigger diameter I'll loose some low end torque?
Not shure but I think I once read a post in here. |
01-08-2011, 10:21 PM | #6 |
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On headers, the larger the dia. the larger the gain. NO LOSS OF LOW END TQ, JUST THE OPPOSITE.
Most shops toss the SS exhaust after a cat back. Hope you can score it for a decent price. |
01-08-2011, 10:38 PM | #7 |
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I tried the SS mufflers after I had the entire system at 2.5".....it sounded awful. I have the video through the ARH link in my sig.
I than had the MRT 2.0 mufflers welded on.....had to cut down the 2.25" inlet cut down to the 2.5" part on the mufflers so they would fit the 2.5" piping.
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01-09-2011, 08:00 AM | #8 |
Retired
Drives: 2010 Camaro RS V6 #1301 DOB 3/23/09 Join Date: Aug 2009
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dual 2.25" pipes will handle up to 1200hp so ... Prolly no gain.
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01-09-2011, 11:43 AM | #9 |
SoCal Camaro5 Race Team
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not really any hard evidence either way on this as to gains that I have seen. I have talked to D/T, Magnaflow and My long time muffler man, and general thought is on stock applications at least you would lose bottom end torque and gain 1-2 hp on top? But with headers and freeing up the system in front first, then might pickup power and not lose any bottom.Only way to tell is someone has to do it and see if there is a difference on the dyno you can for sure say came from the pipes of course.
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01-09-2011, 05:44 PM | #10 | |
Drives: 2011 2SS L99, 2010 LT RS Join Date: Mar 2010
Location: NY (USA) ZH (Switzerland)
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Interesting post (source: http://www.camaro5.com/forums/showth...ghlight=2.5%22)
Quote:
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01-09-2011, 05:46 PM | #11 |
Drives: 2011 2SS L99, 2010 LT RS Join Date: Mar 2010
Location: NY (USA) ZH (Switzerland)
Posts: 437
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So after the first replies and some more reading I would say that without intake+headers it doesn't seem to be worth it to go from 2.25" to 2.5".
But with the LT headers there probably are some gains + some said that it will also smoothen out the sound (without the 2.5" to 2.25" and back convertions). Still not shure if it is worth a try.. |
01-11-2011, 01:53 PM | #12 |
Drives: Bentley Continental GT. Join Date: Aug 2010
Location: Boston, Lincolnshire, England
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Yep. I think you've pretty much answered your own question there. I'd keep it as it is.
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01-11-2011, 03:57 PM | #13 |
Drives: Chevrolet Camaro 1LT 2010 V6 A6 Join Date: Aug 2010
Location: Finland, Kerava
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What if exhaust would shrink to 2" cat-back system?
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Tags |
2.25, 2.5, borla, piping, ss exhaust |
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