BMW 335i 135i N54 Top Mount Single Turbo Kit

After years of R&D we are finally releasing our long awaited 335i/135i single turbo kit.  It is the ulimate turbo kit for your street machine!  They come complete with all nessary hardware to install and is listed below.  We use Precision ball bearing turbos because they are leaders in the industry for offering top performing products that are reilable.  You can choose from your choice of a 5862 up to a 6870 with horsepower ratings from 640hp up to 1100hp (ratings below).  Included is a T4 twin scroll manifold which is the heart of this turbo kit.  It was put to the test by a handfull of very high performing race cars before fitted to our test car.  With the design it is capable of producing well beyond 1000hp for anyone looking to really push the limits of this platform.  To control all of this, boost is regulated by a pair of Tial MVS wastegates which are mounted down low and out of the way of heat.  Boost is fed to the intercooler by a single 2.5" aluminum charge pipe.  The downpipe is made of 3" stainless tubing in two pieces which is V-Band connected and then splits into a factory location flange.  You will be able to use any aftermarket exhaust system as it is factory fitment.  This kit will only fit RWD models.  Please email us for AWD pricing.  

5862 GEN2 CEA- 640hp

6062 GEN2 CEA- 750hp

6266 GEN2 CEA- 800hp

6466 GEN2 CEA- 900hp

6766 CEA- 935hp

6870 GEN2 CEA- 1100hp


* Factory fuel injectors will support upwards of 550hp.  It is advised to use an aftermarket port injection system when going beyond that level.  We suggest an AD-Engineering port injection kit which include additional fuel injectors to support the power level this turbo kit is capable of.  This is the system we run on the DOC Race car and is driven daily without any sort of stalling.

* A good intercooler is reccomended when installing this kit if not already done so.  Our car runs the AD-Engineering dual core which is rated at 1000hp. 


* Please contact us or add a note when ordering if you have an AUTOMATIC TRANSMISSION.  There is a slight modification to the coolant pipe that is needed to work with AT. 



Parts list:

Precision Ball Bearing Turbo

(2) Tial MVS Wastegates

DOC Race Stainless Multi-Piece V-Band Manifold

3" Stainless Upper Downpipe

3" Lower Downpipe (connects to factory location exhaust)

V-Band Clamps

(2) Stainless Dump Tubes

2.5" Aluminum Intercooler Charge Pipe

2.5" Silicone Couplers / Clamps

4" Shorty Filter

5/8" Oil Drain Line Hose

Heat shield

T4 Turbo Gasket

(6) OEM Style Doughnut Gaskets

(4) 10x1.25 Studs / Nuts

-4an Oil Feed Line Kit

Coolant Block Offs & Oil Feed Adapter Fitting

CNC Coolant Pipe / Hardware

Coolant Tank Relocation Bracket

Coolant Hose To Waterpump / Hose Clamps

5/8" Silicone Hose To Coolant Tank / 5/8" Barb Fittings / Hose Clamps

(2) 2-Bolt exhaust Gaskets / Nuts / Bolts

10 ft Silicone Vacuum Hose

(3) Vaccuum Tees

DOC Race Turbo Blanket



 Tuned by AD Engineering using AD Engineering port injection