...... But I am louder 
and a little bit cooler in the cabin now.
How much HP from 2 deleted cats?
Instructor
Joined: Dec 2008
Posts: 189
Likes: 0
From: Jacksonville Florida
Its too late to change my mind, so i might as well just deal with it regardless of the answer! haha
Burning Brakes
Joined: Jul 2007
Posts: 864
Likes: 2
From: Jax FL
This is my 2nd C5 that I have removed the cats from, the 1st was the oem cats and this one had the random tech high flows and I do not know what smell the others are talking about??? I drive with my windows down 90% of the time.
The 1st vette was stock until I had the long tubes, cat delete, x-pipe, and tune done.....the current coupe is a stroker with long tubes etc. etc. we(the tuner and I) removed the cats chasing some missing rwhp.....I like them loud, tuned, and breathing in & out freely.
Race Director
Joined: Dec 2004
Posts: 13,760
Likes: 75
From: Haymarket VA
Race Director
Joined: Jul 2007
Posts: 10,961
Likes: 2,643
From: Texas Hill Country
Safety Car
Joined: Sep 2000
Posts: 3,572
Likes: 420
From: Taildragers rule! USA1
Instructor
Joined: Dec 2008
Posts: 189
Likes: 0
From: Jacksonville Florida
Well thankfully there are no emissions testing in Florida.
And saying it's against the law is funny, in most states it's illegal to modify your exhaust system in any way shape or form. As well as 90 percent of our other mods. It's all about if they are enforced!
And saying it's against the law is funny, in most states it's illegal to modify your exhaust system in any way shape or form. As well as 90 percent of our other mods. It's all about if they are enforced!
Last edited by thatreallyslowc5; Aug 26, 2010 at 11:13 PM.
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Joined: Oct 2007
Posts: 3,903
Likes: 1
From: You know your drunk when you swerve to miss the tree then you realize its your air freshener! Covington Ga
Safety Car
Joined: Sep 2000
Posts: 3,572
Likes: 420
From: Taildragers rule! USA1
Pro
Joined: Apr 2007
Posts: 585
Likes: 2
(cheers!) are in order here...Before anyone flames me, know that I'm not going to go hug a tree now. However, I do wish more car enthusiasts would do their part to help reduce pollution. Sacrificing our environment and the future health of our children for a one or two horsepower gain on an already stupidly fast car is just plain selfish.
LO PHAT
Burning Brakes
Joined: Dec 2009
Posts: 963
Likes: 23
I don't exactly think that (cheers!) are in order here...
Before anyone flames me, know that I'm not going to go hug a tree now. However, I do wish more car enthusiasts would do their part to help reduce pollution. Sacrificing our environment and the future health of our children for a one or two horsepower gain on an already stupidly fast car is just plain selfish.
LO PHAT
(cheers!) are in order here...Before anyone flames me, know that I'm not going to go hug a tree now. However, I do wish more car enthusiasts would do their part to help reduce pollution. Sacrificing our environment and the future health of our children for a one or two horsepower gain on an already stupidly fast car is just plain selfish.
LO PHAT
Very well put LO PHAT 
Instructor
Joined: Dec 2010
Posts: 136
Likes: 0
Bought the car without cats. Had faulty front 02 sensors , just replaced. Now rear 02 sensors show no activity. Car has some 02 resistors that "trick" the computer in thinking the rear 02 sensors are there. Apparenlty these resistors are not working since he check light and code comes on every once and a while. I bought the diablo handheld to tune them out but later learned that only a dealer could do it. what are the resistors calleD? where can i find them?
Tech Contributor
Joined: Jan 2004
Posts: 20,030
Likes: 289
From: Wylie TX --> Less is More, except under the hood !
Bought the car without cats. Had faulty front 02 sensors , just replaced. Now rear 02 sensors show no activity. Car has some 02 resistors that "trick" the computer in thinking the rear 02 sensors are there. Apparenlty these resistors are not working since he check light and code comes on every once and a while. I bought the diablo handheld to tune them out but later learned that only a dealer could do it. what are the resistors calleD? where can i find them?
Toque
Team Owner
Joined: Jan 2004
Posts: 22,185
Likes: 65
From: NJ
Bought the car without cats. Had faulty front 02 sensors , just replaced. Now rear 02 sensors show no activity. Car has some 02 resistors that "trick" the computer in thinking the rear 02 sensors are there. Apparenlty these resistors are not working since he check light and code comes on every once and a while. I bought the diablo handheld to tune them out but later learned that only a dealer could do it. what are the resistors calleD? where can i find them?
Anyone can tune the rear 02's out, not just a dealer.
The word you are looking for is simulators. You can still guy 02 sims new online and they pop up for sale here quite often.
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
Chevy Guy
I have RANDOM TECH high flow CATs on my 02 ZO6 heads cam fast 90 engine for 6 years.. They support 450 RWHP,, NO ISSUES at all...
BC
Team Owner
Joined: Jan 2004
Posts: 22,185
Likes: 65
From: NJ
Of course they dont, because they are useless, they are converters in name only. They do nothing to tame the raw exhaust or reduce hydrocarbons. I have them as well and have no reason to believe they are at all effective, and yes they cause no "issues".