Installed a cobb hfc 200 cell cat, and the exhaust last Thursday. Made small trips to work and school 5-10now miles each, and its been fine no cel. Now I drove about 40 highway miles and got a cell. Bit worried bc I didn't get a tune yet.

 

Does the car feel like it runs any different when the light comes on? Find out what code it's throwing (Autozone will read codes for you for free if you don't have any kind of reader).

 

It didn't feel any diffent. Ill stop in autozone on the way back thanx.

 

Get the code read. If it is b/c of the high flow cat go get a spark plug anti-fowler or an O2 Sensor spacer; basically the same thing.

 

Yah it was the cat lol. Thanx for the solutions.

 

When you get a tune they can disable that code for you as well.