BMW M3 E92/E90 UNDER DRIVE PULLEY KIT

E92/E90 (S65) Underdrive Pulley Kit 

Optimized Performance – Lightweight 6082 Alloy Construction

Unlock full power and throttle response with our precision-machined Underdrive Pulley Kit for the BMW E90/E92 chassis. Designed for high-performance street and track use, this kit reduces parasitic drag from auxiliary components—allowing more of your engine’s output to reach the wheels.

Why 6082 Aluminium?

Our pulleys are CNC-machined from high-grade 6082 aluminium, known for its excellent strength-to-weight ratio and corrosion resistance. This ensures the kit is:

• Lightweight, to reduce rotational mass
• Strong, to handle the stress of high-RPM applications
• Durable, even under extreme heat and vibration

Track-Focused Performance Gains

• Reduced Accessory Drag
  Underdriven alternator and power steering pulleys lower rotational resistance, improving mid-range torque and throttle response.
• Improved Acceleration
  Less parasitic loss means your engine revs more freely—ideal for quick corner exits and high-load track scenarios.
• Balanced Reliability
  Designed with street drivability in mind, this kit provides gains without compromising charging or steering at normal RPMs.

Direct Fit, No Compromises

• Compatible with OEM belt routing
• Precision-machined for OE fit and alignment
• No tuning required—just bolt on and go

Perfect For:

• Track builds chasing every tenth of a second
• Fast road cars needing sharper response
• Weekend warriors wanting real gains without full engine work

Dial in performance where it counts—with our E90/E92 Underdrive Pulley Kit, engineered from 6082 aluminium to deliver lightweight, reliable power for real-world driving and race day intensity.