I was driving around last night and the dreaded cel decided to show itself. The only mod done to the car is GMPP exhaust. I thought maybe the gas cap but the tank was filled like 7 days before and it was time to fill it again. I filled the tank again and made sure the cap was tight. Drove the car another 30 miles or so and its still on. Ive had the exhaust on for about 2,000 miles and never had a problem. Not sure if it would make it come on anyway. The dealer is closed till monday so until then im stuck wondering what it is. Anybody ever had any trouble or think it would make it come on?

thanks

 

AutoZone reads codes for free if you have one nearby

 

I just purchased the GMPP Touring Exhaust. How does it sound. How loud is it compared to the stock exhaust. I went with this instead of the sport because I like a quieter exhaust over a louder one. I hope that it is just a tad louder than the stock one.

 

you'll be happy with it. its quiet like stock just cruising just with a noticable sound diff. but alot louder under a load. you'll like it

 

light went off i'll keep driving it if it comes on again to the dealer she goes