BMW S55 GTX Single Turbo Kit (M2C F87, M3 F80, M4 F82)

The Latest and Best S55 Single Turbo Kit!

Proven technology, guaranteed fit, and race-tested reliability — all with OEM+ quality components.

What’s Included:

• Exhaust Manifold Gasket Set

• Twin Scroll Manifold with 1.5″ runners for all 6 cylinders

• Genuine Garrett GTX3584RS with 1.01 AR Twin Scroll GT V-band housing

• 4-Ply Silicone Hoses

• Stainless Steel 304 TIG-Welded Y Pipe

• V-Band Clamps

• Coolant Aeroquip Hoses

• 14mm Banjo Fittings for Coolant Return and Feed Lines

• Single Inlet Charge Air Cooler (Optional) with Pipe for OEM-style Charge Cooler

• 2.5" to 3" Boost Pipe

• Aluminum 3.5" Turbocharger Inlet

• Stainless Steel Braided AN Oil Feed Lines

• Stainless Steel Oil Feed and Turbo Oil Drain Coupler

• Oil Drain Aeroquip Hose

• All Stainless Steel Hose Clamps

• Oetiker Hose Clamps

• Constant Pressure Hose Clamps

• External Turbosmart Wastegate with Dump Tube

Why Choose BigBoost Turbo Kits?

• Extensive In-House Testing: We rigorously test individual cylinder EGTs and back pressure. Our kit maintains a safe and ideal back pressure ratio of 1.11–1.12:1, ensuring smooth and reliable engine operation.

• Garrett GTX Performance: The GTX turbos are known for excellent reliability and quick spool-up. Perfectly sized for balanced flow, they deliver strong top-end power without sacrificing spool time when paired with our precision exhaust manifold.

Please Note: These kits are made to order and typically ship within 4-5 weeks.