Intake and exhaust systems are good for low and top end performance, but only this upgrade can help improve your mid range performance.
Supercharger Pulley Performance Increase Upgrade for Jaguar XKR 4.2L 25HP + 12%
Supercharger Pulley Performance Upgrade 25HP +12% for Jaguar XKR 4.2 07-09
Jaguar XF 5.0 Supercharged 2011 supercharger pulley performance upgrade 7.5% V8
Mini R52/R53 Cooper S 1.6 -17% Supercharger Pulley, Increase Boost
✅ 15% Supercharger Pulley Reduction Boost Increase R52 R53 02-06 MINI Cooper S
5% Jaguar Land Rover Supercharger Used Performance Pulley 62mm 5.0 Stock Pulley
