Larger diameter crank pulley & smaller supercharger pulley increases the speed at which the supercharger spins, increasing the boost pressure output
*NOTE: This kit must be used with appropriate "Stage 2" performance software.
Larger diameter crank pulley & smaller supercharger pulley increases the speed at which the supercharger spins, increasing the boost pressure output
*NOTE: This kit must be used with appropriate "Stage 2" performance software.
Commonly used for running aftermarket diverter and blow off valves
Replacement O-ring for ECS Turbo Muffler Delete Pipe
10X Entries Into Our F80 M3 Sweepstakes
This product was last offered at the strikethrough price on
06-13-2026
Larger diameter crank pulley & smaller supercharger pulley increases the speed at which the supercharger spins, increasing the boost pressure output
*NOTE: This kit must be used with appropriate "Stage 2" performance software.
Larger diameter crank pulley & smaller supercharger pulley increases the speed at which the supercharger spins, increasing the boost pressure output
*NOTE: This kit must be used with appropriate "Stage 2" performance software.
Larger diameter pulley increases the speed at which the supercharger spins, increasing the boost pressure output
*NOTE: This kit must be used with appropriate "Stage 2" performance software.
The Race Port is famous for being an amazingly small and light BOV for turbocharged competition level engines
*General use blow off valve for custom big turbo applications - Not a direct fit valve*
Allows you to retain the factory airbox when upgrading your B8 Audi Q5/SQ5 3.0 TFSI to the 74mm Porsche 997 / 911 Throttle Body.
2X Entries Into Our F80 M3 Sweepstakes
To be used with Porsche 74mm Throttle Body Upgrade - 99760511501
Replace the factory turbo muffler with a straight, uninterrupted billet aluminum delete