Test Pipe
Thread Starter
Melting Slicks
Joined: Feb 1999
Posts: 2,473
Likes: 10
From: New Paltz, New York USA
Test Pipe
Merry Christmas to all, hope everyone got lots of corvette parts. My daughter got me a test pipe for my 1981 coupe. I went outside to see if it fit because it looked small to me. It seems to be the right size, but while I was under the car checking it I found this hose or pipe going to the converter. Can I just remove this hose and plug it and take the belt off the AIR pump? Thanks for any help.
Happy Holidays to all.
Happy Holidays to all.
Racer
Joined: Dec 2001
Posts: 498
Likes: 0
Re: Test Pipe (Richard Cooper)
Shouldn't be a problem. My exhaust guy was concerned about exhaust leaks on my 84 so he just plumbed that line back into my right hand exhaust pipe (he put in 2 1/4" true duals for me). Be warned, your car will be quite abit louder after you remove the cat. My 84 is running targa mufflers and without the cat it is just about all I can handle! I am planning on switching to some Dynomax Ultraflows come springtime! I am also putting on a set of Edelbrock heads, Crane 2030 cam, and x-ram manifold this spring as well. I am looking forward to jamming on the throttle! P.S. you will notice a performance difference with the cat removed!
Thread Starter
Melting Slicks
Joined: Feb 1999
Posts: 2,473
Likes: 10
From: New Paltz, New York USA
Re: Test Pipe (RUSTY79L82)
Rusty,
I got the pipe from Muffler Tech in California. Their number is 1-877-722-3784. Its a toll free call. The pipe cost me $29.99 plus $10.00 delivery. Hope this helps you.
I got the pipe from Muffler Tech in California. Their number is 1-877-722-3784. Its a toll free call. The pipe cost me $29.99 plus $10.00 delivery. Hope this helps you.
Instructor
Joined: Nov 2001
Posts: 231
Likes: 0
From: Burlington NC
Re: Test Pipe (Chris Fowler '80)
It's a pipe used to replace a catalytic converter.
With the federal laws that were put in place, it's also deemed illegal. :D But for that matter so are duals. :D
I won't tell if you don't
With the federal laws that were put in place, it's also deemed illegal. :D But for that matter so are duals. :D
I won't tell if you don't
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
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Burning Brakes
Joined: Jan 2001
Posts: 1,218
Likes: 2
From: Plainfield IL
Re: Test Pipe (terry82)
I bought a test pipe off ebay for my '81. Damn thing had the fitting for the air pump hose welded on the wrong side of the pipe. Surprisingly, when I installed the (corrected) pipe, there was no performance gain nor any increase in sound.
I've since switched to a high performance catalytic, so I won't have to remove the test pipe each time the car is tested for emissions. (I actually forgot the test pipe was installed when I had the car tested. It flunked the test, though the pipe was not discovered.)
I've since switched to a high performance catalytic, so I won't have to remove the test pipe each time the car is tested for emissions. (I actually forgot the test pipe was installed when I had the car tested. It flunked the test, though the pipe was not discovered.)
