SPEEDTECH N54 NO TURBO OPEN DUMP WASTEGATE BOTTOM MOUNT KIT

VEHICLE SPECIFICATIONS:

 2007-2010 135i/335i (RWD/MT)
 2007-2010 135i/335i (RWD/AT)
 2007-2010 335xi (AWD/MT)
 2007-2010 335xi (AWD/AT)
 2010-2013 335is (RWD/DCT)

Build It Your Way. Use Your Turbo. Keep Our Precision.

This version of our bottom-mount N54 turbo kit is designed for those who already have a turbo or plan to source their own. You’ll get the same high-quality components used in our complete kits — minus the turbo and wastegate — allowing you to custom-tailor your setup with the turbo of your choice.

✅ What’s Included:

• T4 Turbo Manifold

  • Available in Ceramic or Non-Ceramic coating

  • Includes high-grade studs and locking nuts

• Stainless Steel Tubing

  • Tig-welded, durable, and pre-fabricated for optimal fit

• Open Dump Wastegate Pipe

  • Designed for high-flow and aggressive tone

• RH Engine Mount Bracket

  • Reinforces and supports the turbo-side of the engine

• Coolant Block Manifold

  • Streamlined coolant management for single turbo setups

• Silicone Coolant Hose

  • Flexible and heat-resistant

• Billet Oil Fittings (Engine-Side)

  • Machined from aircraft-grade aluminum

• Stainless Braided Oil Feed Hose

  • -4AN for high-pressure turbo oil supply

• Billet Coolant Fittings (Engine-Side)

  • CNC precision fit

• Silicone Turbo Inlet & Outlet Couplers

  • Durable and made for tight engine bay spaces

• High-Flow Air Filter

  • Keeps debris out while letting your turbo breathe

⏱ Lead Time:

This turbo-less kit is custom-assembled and typically ships in 3 to 4 weeks.

🔧 Important Turbo Fitment Notes:

BorgWarner SX-E Compatibility:

• Turbine Housing MUST use a 3” V-Band outlet, NOT a standard Marmon flange

• The v-band mating surface must be aligned with the back plane of the T4 flange

• Mismatched v-band positioning may cause fitment/alignment issues

Garrett Compatibility:

• Garrett turbo lines vary by model:

  • GTW and G-Series have different oil drain/feed fittings

  • GTX Gen2 turbos are no longer supported as of 2023 due to oil drain incompatibility

General Turbo Requirements:

• Turbine Housing: T4 inlet, 3" V-band outlet

• Compressor Housing Outlet: 2" or 2.5"

🛠 Ideal For:

• Customers building a custom single turbo N54 setup

• Anyone sourcing their own Garrett, BorgWarner, or Precision turbo

• Tuners who want flexibility without sacrificing fitment or quality

📦 Shipping Details:

• Ships after fabrication and assembly (approx. 3–4 weeks)