Berk Technology Scion FR-S Subaru BRZ Track Pipe Muffler Delete 2.5" without exhaust tipThe most desirable areas to lose weight on a high performance car would be weight at the top or the ends of the car. The lightweight Berk Technology 2. 5" Track Pipe addresses the rear of the car by removing over 20lbs of polar weight on the vehicle. The Berk Technology Track Pipe deletes the rear muffler and is a quick and clean solution to losing weight, adding horsepower, and giving your FRS BRZ FT 86 some bark and bite at the track. Features &