who makes a 3inch cat back
Thread Starter
Racer
Joined: Jan 2005
Posts: 433
Likes: 0
From: Northridge southern california
who makes a 3inch cat back
are the kooks1 3/4 headers and xpipe all 3inch exits, if so . does anybody make a 3inch catback, i wanted the bullets but they are 2.5
would that make anydifference.
would that make anydifference.
Safety Car
Joined: Dec 1999
Posts: 4,148
Likes: 5
From: Roxbury NJ
Originally Posted by c6 corvette Z51
are the kooks1 3/4 headers and xpipe all 3inch exits, if so . does anybody make a 3inch catback, i wanted the bullets but they are 2.5
would that make anydifference.
would that make anydifference.
Safety Car
Joined: Jun 2004
Posts: 4,430
Likes: 81
From: Whidbey Island WA
The corsas are 3 all the way through. You can just lop of the end of the xpipe for the headers you get and put in a small piece to mate up to a 3" cat back. Piece of cake for any competent exhaust place. Others are the aps cat back which can include cats if you use a header that exits at the start of the stock xpipe. Also I suspect (but havent seen it confirmed yet) that a fellow could bolt up the B&B Z exhaust which is 3 all the way.
Safety Car
Joined: Dec 1999
Posts: 4,148
Likes: 5
From: Roxbury NJ
Originally Posted by crabman
The corsas are 3 all the way through. You can just lop of the end of the xpipe for the headers you get and put in a small piece to mate up to a 3" cat back. Piece of cake for any competent exhaust place. Others are the aps cat back which can include cats if you use a header that exits at the start of the stock xpipe. Also I suspect (but havent seen it confirmed yet) that a fellow could bolt up the B&B Z exhaust which is 3 all the way.
Safety Car
Joined: Jun 2004
Posts: 4,430
Likes: 81
From: Whidbey Island WA
I should have been more clear. Its a given up front that there is going to be something custom somewhere to bolt these up because the available header setups with a 3" x pipe neck down at the rear of the x to mate up to the stock muffs. So your going to have to mod it there to make the connection to the 3" over the axle/muffler combination like the corsa. On the other hand if you choose a header like the B&B that exits at the stock x to cat connection and bolts up to the stock mid pipe combined with a Z cat back like the B&B then your going to be modding it on that end to mate with the headers. Anything that will bolt up to the Z cant be too far from bolting up to the base car with a little modding because they are both constrained by the same limited physical space. Which would be one last thing that should be mentioned. Not sure if you have enough room for the 3" over the alxe portion to work with an auto. I have not read of it being done at any rate. Its already been done with the stick so we know that works.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
