Kinugawa N20 Stage Stage 3L (L means larger turbine side) upgrade drop-in turbo consists of 100% new castings for the entire unit. The stainless steel twin-scroll turbine housing and manifold have been cast in two pieces with all the factory flow restrictions removed. This allows our upgraded to support 350WHP with proper fuel, upgrades, and tuning. Caution is definitely advised though, forged internals are pretty much a requirement once you get past about 22 or 23 lbs of boost with these engines.
This is the highest for any drop-in of the N20 upgrade. The compressor is a full billet 11 blades GTX wheel and the turbine is a Kinugawa STS blades design to reduce the backpressure and extend the top-end speed. The turbo comes with performance DV+ (Optional) to replace the stock plastic DV parts which are prone to cracking and leaking. The 3L upgrade will support Stock levels-350WHP with a quick spool and plenty of flow to redline 7000rpm.
Important Notice: The maximum power stated for each turbocharger has been calculated based strictly on the choke flow of the compressor map (total turbo capability), which represents the potential flywheel power. Performance results of this product are highly dependent upon your vehicle’s modifications and tuning/calibration.
Fits all F Chassis cars with the N20 engine
Fitment on pre-2013 cars with pneumatic wastegate (PWG): your original PWG and actuator arm must be transferred to the new turbo housing. The wastegate pot is a simple bolt-on. The hole for the mounting pin on the PWG arm must be drilled out to 10mm. These are very simple modifications that should only take a few minutes to complete. Feel free to contact us with any questions.
- 1 Series
F20 125i & F20 LCI 125i (2010 - 2018)
F21 125i & F21 LCI 125i (2010 - 2018)
- 2 Series
F22 220i (2012 - 2017)
F22 218i / 228ix (2012 - 2016)
F23 220i (2014 - 2017)
F23 228i / 228ix (2014 - 2016)
- 3 Series
F30/F31 320i / 320ix / 328i / 328ix (2011 - 2015)
F30 LCI 320i (2014 - 2018)
F30 LCI 328i (2014 - 2016)
F31 LCI 328ix (2014 - 2016)
F34 320i / 320ix / 328i / 328ix (2012 - 2016)
F35 320Li / 328Li & F35 LCI 320Li / 328Li (2011 - 2018)
F35 328Lix & F35 LCI 328LiX (2013 - 2016)
- 4 Series
F32 420i / 420ix / 428i / 428ix (2012 - 2017)
F33 420i / 428ix (2013 - 2017)
F36 420i / 420ix / 428i / 428ix (2013 - 2017)
If you have 5 / 6 / 7 series, please contact us for your compatibility with your VIN.
- Compressor Wheel: Billet 20T 11+0 Blades upgraded
Stage 3L: 47/58mm (supports 250~350WHP)
- Turbine Wheel: 9 Blades STS
1. Upgrade to 45.6 / 52mm 9 blades
- Oil and water cooling
- Journal bearing system
Turbine Housing: Stainless Steel
- A/R 6cm (.41)
- 1 x Turbocharger with a manifold
- 1 x performance DV+
- 1 x Balanced Report with the Anti-counterfeit tag