Aftermarket CATS
Thread Starter
Melting Slicks
Joined: Sep 2006
Posts: 2,721
Likes: 104
From: Florida
Aftermarket CATS
So, i think the fumes are getting to me now after having been CATless for the past couple years.
Has anyone had good luck with the barrel type hi-flow cats? Will they completely eliminate the fumes?
Has anyone had good luck with the barrel type hi-flow cats? Will they completely eliminate the fumes?
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
LOL!! You wont be the last person to revert back to CATs 
I have had RANDOM TECHNOLOGIES Cats on my 02 Z for years. NO ISSUES! Yes,, they work!
I will say that some say, that the TUNE has a LOT to do with the smell of the exhaust but having CATs sure does help.
By the way,, They only cost you 5-6 HP
I have had RANDOM TECHNOLOGIES Cats on my 02 Z for years. NO ISSUES! Yes,, they work!
I will say that some say, that the TUNE has a LOT to do with the smell of the exhaust but having CATs sure does help.
By the way,, They only cost you 5-6 HP
Burning Brakes
Joined: Jul 2006
Posts: 968
Likes: 12
From: Regina Sask
I was catless for a couple years. After too many head aches & tired of the exhaust stink, I installed the LG metal cats. NO MORE STINK! No tuning will stop the stink in a catless vehicle, and the bigger the cam, the greater the stink.
Russ Kemp
Russ Kemp
Drifting
Joined: Apr 2009
Posts: 1,898
Likes: 9
From: Morrisville PA
Been saying this on various boards for a while now and everyone is so stubborn about it.
YOU CAN'T TUNE IT OUT! You can play with end of injection timing, run open loop and command a lean idle all you want, but the stink will remain and it sticks to every thing.
The best solution I found was to command a RICH afr, so at least it smelled like an old carbed muscle car instead.
Stock cammed cars are mostly ok, it smells good actually. But even cams with -5 overlap stink horribly.
Le Mans Master
Joined: Jun 2008
Posts: 5,284
Likes: 235
From: Rockledge FL
A lot of it has to do with the cam and the tune. I have the older ceramic coated mild steel TSP headers and X pipe on my 00 and with a 228R cam and tuned by Lashway Motorsports in S Florida there is no smell at all.
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