hey what size is the collecter and will it fit a 2 1/4" cat. this is on 99 gsr with jrsc. also what is a good place to get one.

 

The collector is 2.5". You can get it with either a 2.5" that stays 2.5" all the way through or one that necks down to 2.25" at the end.

If you are using the stock cat, you need the 2.25" version. The 2.5" is for 2.5" cats/testpipes.

The header makes power, but fit/finish is definitely not its strong suit. You get what you pay for though and it is an inexpensive header.

Sonny

 

thanx sonny

hey how do you check for a a vacum leak because i'm still getting the cel light for the iacv. i checked the electircal wiring with a voltmeter but everthing seems fine. also will i cause any damage to the car if i drive around with that cel problem.

quan