Porsche ARP 204-5001 M96/M97 Carrier Through Bolt Kit Porsche Boxster - Cayman - 911 204-5001 911423300KIT This pre-silencer has a great

This pre-silencer has a great sport sound and will increase your horsepower by 10-12 (the pre-muffler only fits single inlet muffler systems)

Side glass kit for 356A models

providing superior protection to both the sump AND engine

flanges for easy mounting

Porsche ARP 204-5001 M96/M97 Carrier Through Bolt Kit Porsche Boxster - Cayman - 911 204-5001 911423300KIT This pre-silencer has a greatPorsche Porsche 986 987 996 997 Crankshaft Carrier Through Bolt Kit. The factory carrier bolts are torque to yield (TTY) and must be replaced. This ARP crankshaft carrier thru bolt kit features bolts that are stronger (and reusable) to help prevent shuffling and fretting of the main bearing saddles common to engines that see high performance driving or have been increased in displacement. Optional for street and required for the track. We also