exhaust - Performance Forum

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exhaust
Saturday, March 08, 2008 1:02 PM
i have a header and pacesetter cat back...the only stock item left is the cat...if I install a magnaflow highflow cat or sumthing like that will there be a noticable gain? and what about gas mileage, any better?


4-2-1 pacesetter header..full 2.5 pacesetter piping..bomz cai..genkei short shifter..vibrant front and rear strut bars..aem tru power alt pulley..neon glow strobes..xenon ultra blues..panasonic 7" flipout..Lanzar 15" sub..legacy 2000watt mono..

Re: exhaust
Saturday, March 08, 2008 1:04 PM
no. there's really no difference in the restriction of the stock cat and a high flow. only difference being the diameter of the pipe. thats where your difference will come from.



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Re: exhaust
Saturday, March 08, 2008 4:02 PM
The inside of the stock cat is bigger then 2.25", so if you had your exhaust shop chop off the pipe from the cat, and weld the o2 bung in your new pipe, it would have the same effect, but save you a nice chunk of change.
Re: exhaust
Saturday, March 08, 2008 4:05 PM
so it really wouldnt do me any good to go and spend like 100 on a high flow cat?


4-2-1 pacesetter header..full 2.5 pacesetter piping..bomz cai..genkei short shifter..vibrant front and rear strut bars..aem tru power alt pulley..neon glow strobes..xenon ultra blues..panasonic 7" flipout..Lanzar 15" sub..legacy 2000watt mono..
Re: exhaust
Saturday, March 08, 2008 4:07 PM
not at all, if you can remove the pipe ends on your cat and weld on pieces of pipe that are the same size as your current pipe.



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Re: exhaust
Saturday, March 08, 2008 7:04 PM
not to get off subject but how does the pacesetter exhaust sound does it sound good or does it sound like a fart can
Re: exhaust
Saturday, March 08, 2008 8:22 PM
adam smale wrote:not to get off subject but how does the pacesetter exhaust sound does it sound good or does it sound like a fart can


I have the pacesetter too. It will sound good as long as your cat is intact inside. Its not as throaty as I would like, but its smooth sounding.
Re: exhaust
Saturday, March 08, 2008 8:30 PM
4bangerdeathsquad wrote:
adam smale wrote:not to get off subject but how does the pacesetter exhaust sound does it sound good or does it sound like a fart can


I have the pacesetter too. It will sound good as long as your cat is intact inside. Its not as throaty as I would like, but its smooth sounding.


if you want, give me a day or two 2 remember and i will send you a sound clip if you would like...let me kno


4-2-1 pacesetter header..full 2.5 pacesetter piping..bomz cai..genkei short shifter..vibrant front and rear strut bars..aem tru power alt pulley..neon glow strobes..xenon ultra blues..panasonic 7" flipout..Lanzar 15" sub..legacy 2000watt mono..
Re: exhaust
Saturday, March 08, 2008 8:41 PM
Depending on the year of your car and hows it been run the stock cat could become clogged and less flow passes through

Wouldnt hurt to replace it



Re: exhaust
Saturday, March 08, 2008 8:53 PM
its an 01 w/ 70,000 miles


4-2-1 pacesetter header..full 2.5 pacesetter piping..bomz cai..genkei short shifter..vibrant front and rear strut bars..aem tru power alt pulley..neon glow strobes..xenon ultra blues..panasonic 7" flipout..Lanzar 15" sub..legacy 2000watt mono..
Re: exhaust
Saturday, March 08, 2008 9:01 PM
if you're set on replacement, i've recently completely redone my exhaust, and this is the cat i used. been a month, several highway runs, as well as short stints to work and back, no CEL, its available up to 3", in ceramic or metal core.



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Re: exhaust
Saturday, March 08, 2008 9:25 PM
i already have the cel light...it happend when my buddy put my exhaust on...i think that it might have sumthing to do with the egr valve..cuz he like plated it off or something...but when my other buddy hooked it up on a comp, h etold me it said low 02 activity...so i bought new bosch 02 sensors, and still no luck....would i have to get my codes reset after i installed the 02?


4-2-1 pacesetter header..full 2.5 pacesetter piping..bomz cai..genkei short shifter..vibrant front and rear strut bars..aem tru power alt pulley..neon glow strobes..xenon ultra blues..panasonic 7" flipout..Lanzar 15" sub..legacy 2000watt mono..
Re: exhaust
Sunday, March 09, 2008 7:06 AM
bosch o2 sensors and our cars dont mix. only trust genuine gm parts for those.



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