Anyone have catless headers in CT?
Thread Starter
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Joined: Jan 2010
Posts: 51
Likes: 1
From: New Milford Connecticut
Anyone have catless headers in CT?
I'm looking to get a set of headers and I'm trying to decide between cat and catted. I'm curious as to emissions implication since they do a visual inspection. has anyone had problems with no cats?
Thanks
Thanks
Le Mans Master
Joined: Dec 2000
Posts: 6,312
Likes: 399
From: North Haven, CT
Hi, with my first C5 ten years I had no cats and emissions was never an issue. The places never actually looked (probably because the car is so low they are afraid to put it on a lift) and as long as they plugged into the car and got no codes I was good to go in 5 minutes every time. Last time I went though with my current C5 (has high flow cats) they looked and made mention they saw the bumps on the mid pipe. I think many places now have cameras to see under the cars and check this. My suggestion would be if you are going to run catless, weld some empty cats to the pipes so you can pass the visual. 
But, if you're N/A, there isn't much benefit to running without cats. I was told by ECS I would be gaining only about 5hp by ditching my cats and that's with a 427ci setup. Big HP FI setups are a different story as those cars will just destroy the cats anyway, so no point in running them on those cars.
Good luck.
But, if you're N/A, there isn't much benefit to running without cats. I was told by ECS I would be gaining only about 5hp by ditching my cats and that's with a 427ci setup. Big HP FI setups are a different story as those cars will just destroy the cats anyway, so no point in running them on those cars.
Good luck.
