Helical Technology High Performance Exhaust Valves for Custom Applications Style:60mm ID - Vacuum Valve Installing the Supercup exhaust alone

Installing the Supercup exhaust alone with your factory catalytic converter downpipes does not produce much of a sound difference until combined with the other exhaust components as a package

Removable cushions and grippy inserts enable a personalized fit—ideal for endurance racers

Direct upgrade/replacement for OEM LDZ turbo resulting in significant power gains and quicker spool                                                                           FEATURES: Fits all Porsche 911 Turbo 930 vehicles (1976-1989) Peak power on a completely stock 1986 911 Turbo is 251hp and 280ft/lbs of torque Peak power on a K27/1 BAR-equipped 1986 911 Turbo improves to 315hp and 358 ft/lbs of torque (with over 300 ft-lbs of torque available at 3800 RPM) Turbo Intake Size: 2

multi-purpose helmet with a wider field of vision that is perfect for eye-glass wearers

dyno-testing

Helical Technology High Performance Exhaust Valves for Custom Applications Style:60mm ID - Vacuum Valve Installing the Supercup exhaust aloneHelical Technology is the UK's foremost producer of high specification engine control systems supplied to many of the world's leading vehicle makers, manufacturing valves of the highest quality for some of the most technically advanced and difficult applications. Helical Valves are the standard for high performance OEM applications ranging from Ferrari and Porsche to Lamborghini, McLaren and more see the full list below. They offer a proven OEM