B58 Gen1/Gen2 Big Boost Stage 4 Turbo Kit
B58 Gen1/Gen2 Big Boost Stage 4 Turbo Kit
B58 Gen1/Gen2 Big Boost Stage 4 Turbo Kit
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B58 Gen1/Gen2 Big Boost Stage 4 Turbo Kit

Regular price
$3,850.00
Sale price
$3,850.00
Regular price
$3,999.00
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Shipping calculated at checkout.

BigBoost’s stage 3-4 turbo for the B58 Gen 1 and 6 Port TU engine!

What’s included?

  • BigBoost MPR 65mm turbocharger (Optional Dual Ceramic Ball Bearing CHRA) (Optional Garrett GEN2 GTX3582R)
  • Cast twin-scroll manifold 40% larger than stock runners and area with external wastegate port.
  • Turbosmart 38mm Wastegate  
  • Aviation grade stainless steel oil feed lines
  • Oil feed and return fittings for turbo
  • Oil feed fittings for engine
  • Oil drain adapter
  • Turbo to Throttle Body charge pipe
  • Aluminum 4″ inlet pipe
  • Silicone couplers
  • Hose clamps
  • Turbo coolant inlet and outlet fittings
  • Engraved Heat Shield
  • VPE V Band Clamp
  • Exhaust Manifold Gasket
  • OEM O-ring kit
  • Aeroquip Coolant Hose Kit

Stage 4 (65mm) (820 WHP) (Optional Garrett GTX3582R 6662 turbo)

IMPORTANT NOTE!!!

***The Stage 4 Turbo Kit will require custom tuning via a known platform MHD or BM3 where your tuner will need to disable your factory Electronic Wastegate!*** ***YOU NEED TO ORDER A BOOST CONTROLLER WE RECOMMEND GFB GFORCE III Part Number 3005***

***BUILT TO ORDER Please Allow 5-10 Weeks for order to ship***