BigBoost S55 Top Mount Single Turbo Kit

BigBoost S55 Top Mount Single Turbo Kit

After years of dominating the S55 single turbo market with our cast manifold kit, we’re excited to introduce the first-ever BigBoost tubular top mount kit for the S55 platform.

Built around our proven single turbo experience, this kit features a hand-fabricated stainless steel tubular manifold, Precision turbocharger, dual 45MM wastegates, stainless downpipe, dump tubes, and all of the supporting components needed for installation.

The tubular design offers an aggressive under-hood appearance while maintaining the performance, reliability, and fitment standards BigBoost is known for. Whether you’re building a street car, roll racing setup, or drag car, this kit is designed to support serious power while retaining excellent drivability.

Kit Includes:

• Stainless steel tubular top mount manifold
• Precision turbocharger
• Dual Turbosmart wastegates
• Stainless steel downpipe
• Dump tubes
• Charge piping
• Oil feed and drain lines
• Silicone couplers
• AN fittings and hardware
• All necessary installation components

Fitment:

• BMW F80 M3
• BMW F82 M4
• BMW F83 M4