Originally posted by bobo:
what exactly is optimizing your Y pipe? What can i do to optimise my stock pipe verse buying a new one?




Optimizing your y-pipe is simply having your y-pipe pulled off the car and grinding out the the intersection where all three tubes come together. Stock, this chamber is pinched pretty tight allowing minimal airflow. With a little grinding, this area is opened up drastically. I felt 3 hp down low AND up top in the rpm range.

Some might argue that this process is better than buying an aftermarket y-pipe.


'98 CSVT Black -AEM short-ram intake -Optimized TB -Optimized y-pipe -Magnaflow cat-back -B&M short-throw shifter -UD pulleys -Poly mount "It's quicker than it was stock!"