catless 2.2
09-24-2009, 11:00 PM
#1
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catless 2.2
alright so my i have a cobalt 2.2 07 wit a catless header back exhaust. it sounds like **** 
i kinda got to thinkin wouldnt it be better performance wise if i got a high flow cat because i'd have a lil back pressure and since i dont have f/i itll'd give me some more bottom end torque ?
dam wrong 2.2 section my b
i kinda got to thinkin wouldnt it be better performance wise if i got a high flow cat because i'd have a lil back pressure and since i dont have f/i itll'd give me some more bottom end torque ?dam wrong 2.2 section my b
Last edited by *S!CC_R@c!NG_TURTL3*; 09-24-2009 at 11:00 PM. Reason: Automerged Doublepost
09-24-2009, 11:06 PM
#2
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In my opinion anything bigger than a 2.25" (GMPP) exhaust you will lose alot of low end torque on a 2.2. And there is absolutely no need for you to be going catless.
The 2.2's and LSJ motors dont need that much breathing room. The LNF would benefit the most from a more free flowing exhaust system.
The 2.2's and LSJ motors dont need that much breathing room. The LNF would benefit the most from a more free flowing exhaust system.
09-24-2009, 11:25 PM
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yea catless was because i was broke at the time but im plannin on throwing on a high flow cat.. but i plan on running a 75/100 shot would i benefit from something bigger than a 2.25 inch
but im plannin on throwing on a high flow cat.. but i plan on running a 75/100 shot would i benefit from something bigger than a 2.25 inch
12-11-2009, 01:53 PM
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In my opinion anything bigger than a 2.25" (GMPP) exhaust you will lose alot of low end torque on a 2.2. And there is absolutely no need for you to be going catless.
The 2.2's and LSJ motors dont need that much breathing room. The LNF would benefit the most from a more free flowing exhaust system.
The 2.2's and LSJ motors dont need that much breathing room. The LNF would benefit the most from a more free flowing exhaust system.
yet i know people with a 2.5'' and its plenty breathing room and gives you a hp increase of 10-15hp. On the torque im not sure, but a 2.5'' is good, i just wouldnt go any further or else you will definalty lose back pressure and hp if you're N/A
12-11-2009, 04:25 PM
#16
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Not a whole lot if any. Maybe 2-3 hp. It will just sound nicer I guess.
12-11-2009, 05:59 PM
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10-15 hp ? maybe at the crank lol
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