Mishimoto has developed a racing thermostat engineered specifically for the 1999-2006 BMW E46 323i / 325i / 328i / 330i, The Mishimoto BMW Racing Thermostat fits all M52 / M54 / M56 engines, It will promote greater cooling efficiency throughout your engine, Mishimoto racing thermostats will significantly lower high engine temperature produced by modified and upgraded M52 / M54 / M56 engines, Once the engine is fully warmed up the Mishimoto Racing Thermostat will open up at a lower temperature than the stock thermostat, allowing the coolant to flow through the engine sooner thus reducing and maintaining cooler engine temperatures, And improving long term reliability of your vehicle’s cooling components,

Mishimoto has developed a direct-fit replacement thermostat for the BMW M52, M54, and M56 engines. This Mishimoto thermostat is the ideal replacement for your failed stock thermostat. Our thermostat comes pre-installed in a durable OEM-quality housing and fits many BMWs including E46, E39, and E85 chassis. Like all Mishimoto cooling products, this BMW M52, M54, and M56 thermostat is backed by our Mishimoto Lifetime Warranty.

Mach Force XP; Cat-Back System; Incl Clamps, Mufflers, Sectional Tubing Material: 304 Stainless Steel Outlet Size (in.): 3 Exit Position: Dual Rear Tip Size: 4.0 in. Exhaust Type: Dual Exit Style: Straight Inlet Size (in.): 3

Mach Force XP; Cat-Back System; Incl Clamps, Mufflers, Sectional Tubing Exit Style: Straight Tip Size: 4.0 in. Material: 304 Stainless Steel Outlet Size (in.): 3 Exhaust Type: Dual Exit Position: Quad Split Rear Inlet Size (in.): 3

aFe Twisted Steel Long Tube Headers w/ Mid Pipes (Street) 96-99 BMW M3 L6-3.2L S52

Mach Force XP; DPF-Back System; Incl Clamps, Mufflers, Sectional Tubing Exhaust Type: Dual Tip Size: 3.5 in. Exit Position: Dual Split Rear Outlet Size (in.): 2.5 Exit Style: Straight Inlet Size (in.): 3.5 Material: Stainless Steel

Stage 2 Cold Air Intake Si Sealed

Stage 1 Cold Air Intake

Stage 2 Cold Air Intake Si Sealed

Stage 1 Cold Air Intake

Stage 1 Cold Air Intake

Stage 2 Cold Air Intake Si Sealed