The all new STILLEN Y-pipe is constructed of 2 1/2" pipe up to 3" on the collector and is made of stainless steel. This mandrel bent pipe allows for smooth flow of gasses without restriction, bringing the increase of performance to 7 horsepower with an additional 3lbs of torque to your 350Z or G35 Coupe. (Total of 10 HP gained when used with the STILLEN Silver Series Y-Pipe Back Exhaust System)
NOTE: Output flange retains factory configuration and location. This system is compatible with the STILLEN Silver Series Y-Pipe Back Exhaust System (#504251) and/or any other name brand Y-Pipe Back Exhaust System.