Agency Power has developed and tested this exhaust system for the Porsche 987 Boxster and Cayman vehicles. The all T304 stainless steel exhaust features a mirror polished finished, thick flanges, OEM fit, and an incredible sound. The twin muffler exhaust system can be used with the OEM exhaust tip or our optional dual style chrome exhaust tip. The exhaust tip is easily fitted on to the OEM y-pipe and can be adjusted as needed. The exhaust is freer flowing with the reduction of the 2 additional catalytic converters. The exhaust will then give you much better throttle response compared to the stock system. Producing an amazing sound which gives the Porsche a race tone, this exhaust is still comfortable for daily driving. As tested on a Mustang Dyno, the Agency Power Porsche 987 exhaust produced an amazing 23HP and 11ft/lbs of torque. Add an ECU upgrade with an intake kit and your power will keep climbing!