Funky smell from cats
Thread Starter
Race Director
Joined: Mar 2008
Posts: 12,413
Likes: 502
From: Rio Rancho NM
Funky smell from cats
I noticed that if I do a few pulls from 2nd to 3rd or 3rd to 4th I can actually smell the cats or what I think is the cats. It's a faint hint of a egg smell/something else. Yeah I know that doesn't help but that's the best way I can explain this. Any idea? I have no codes and the car runs fine with no issues and gets great gas mileags.
Le Mans Master
Joined: May 2006
Posts: 7,876
Likes: 254
From: Hillsboro OR
I get a similar smell too. Not quite egg smell. It's more of a hot metal smell. When I put on the new high flow cats that came with my American Racing Headers they smelled when I got on it too. I (and my tuner) think it is normal. I'm pretty sure plywood is not a good vapor barrier. 
Safety Car
Joined: Apr 2004
Posts: 4,813
Likes: 2
From: We cant stop here... this is bat country
I've been told in the past that getting a rotten egg/sulfur smell from your cats usually means they are breaking apart on the insides. Might be crap, bad info passed on and on. I have no personal experience, so I only speak from word-of-mouth.
I'd listen to AU N EGL. Very knowledgeable guy.
I'd listen to AU N EGL. Very knowledgeable guy.
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