WOW what a difference
Thread Starter
Instructor
Joined: Oct 2004
Posts: 179
Likes: 1
From: gainesville florida
WOW what a difference
I have a 02' vert and have done a few bolt on mods, but just today cut off the precats, and WOW, what a differece.
The low end is sooo much more responsive and a noticable difference in power.
I had exchanged the stock exhaust for the Z06 Ti, but did it at the same time as the headers, and vararam. That made a big difference never knew which did the most.
Apparently, the exhaust wasn't doing much, but is now.
Diffinetly worth the time and money. { My local muffler shop did the job, for 50.00.}
Later,
Jw
The low end is sooo much more responsive and a noticable difference in power.
I had exchanged the stock exhaust for the Z06 Ti, but did it at the same time as the headers, and vararam. That made a big difference never knew which did the most.
Apparently, the exhaust wasn't doing much, but is now.
Diffinetly worth the time and money. { My local muffler shop did the job, for 50.00.}
Later,
Jw
Safety Car
Joined: Jul 2005
Posts: 4,743
Likes: 0
From: Omaha Nebraska
St. Jude Donor '06
Originally Posted by IDM
What do you mean? If you had headers already wouldn't all of the cats have been removed?
some guys take 'em off, others leave 'em on...
Le Mans Master
Joined: Aug 2005
Posts: 7,890
Likes: 0
From: FL
Originally Posted by VRROOOM2
If you need to stay smog legal, you can still run Cats.. Hi-flow cats...
some guys take 'em off, others leave 'em on...
some guys take 'em off, others leave 'em on...
Burning Brakes
Joined: Jun 2002
Posts: 825
Likes: 0
From: San Diego(Sabre Springs) Ca
Actually, I just looked. Since I have longtubes...I don't have pre-cats. So, i'm just gonna gut the cats. Should sound alot better.
Along w/the longtubes, I have an X-pipe and Borla.
Along w/the longtubes, I have an X-pipe and Borla.
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Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
Originally Posted by BlownZ
Can't you just gut the pre-cats?
http://mikemercury.home.att.net/precats.htm
Le Mans Master
Joined: Aug 2005
Posts: 7,890
Likes: 0
From: FL
wow I never knew they made headers that short where they left the precats on! I don't have precats on my car and my first mod was to remove the main cats which seemed to make a nice difference as well
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
Originally Posted by VinceC5
mike, did you notice any difference just by gutting the pre-cats?
Can't help but think the precats had to be restrictive though... just by looking at the material itself. And there's a reason why the Corvette engineers determined the need to remove them on the Z06.