To keep temperatures lower

When opting for main studs instead of factory bolts

30 mm (center to center) connecting rods are designed to fit Honda B16A engines

2005-2010     E60/E61     M5

Cometic MLS Head Gasket – Ideal for turbocharged and supercharged builds

TiAL Sport Q Series 50mm Blow-Off Valve -11 psi Spring 101-0163 To keep temperatures lowerThe first revision of TiAL's original BV50 blow off valve, the Q Series flows 60% more than its predecessor and bolts to any standard TiAL flange without welding. An included weld mounting flange (available in aluminum, mild steel, and stainless steel) cut for 2 1 2'' pipe and CNC machined aluminum V band mounting clamp with stainless steel hardware create a durable corrosion free appearance. A banjo type aluminum air fitting and bolt with 1 4" hose