BIGBOOST B58 EFR TURBO KIT

BIGBOOST B58 EFR TURBO KITBigBoosts stage 3 4 turbo for the B58 Gen 1 and 6 Port TU engine! Whats included? BorgWarner EFR 8374, 8474, 9174 or 9280 Cast twin scroll manifold 40% larger than stock runners and area with external wastegate port. Aviation grade stainless steel oil feed lines Oil feed and return fittings for turbo Oil feed fittings for engine Oil drain adapter Lower Boost Pipe Aluminum 4 inlet pipe Silicone couplers Smart Seal Stainless Steel Hose clamps Turbo

production and sales people who believe in the product they design

and retesting this design

***Now featuring our Smooth Bore PTFE fuel lines***

and tuning) Stock – 350WHP

and 440i is a great first modification to do

Mirror polish or brush finish

can take as little as 30-45 minutes if you have had it apart a few times

back pressure is reduced significantly resulting in faster spool

CORSA's Patented Reflective Sound Cancellation (RSC) Technology allows acoustic engineers to create a drone free exhaust sound

This allowed us to keep the factory connection while keeping the interior of the ball smooth

Dual Split Rear Exit

The focus of the ARM S55 Intake is performance