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Turbosmart BMW N54 Plumb Back Recirculating BOV (135i, 335i & Z4)


  • £244.79
    exc. VAT £203.99
  • 3 reviews


Specifically designed to suit the latest turbocharged BMW with the N54 engines, the Kompact BMW Kit consists of two Plumb Back Kompact valves and all the necessary hoses and clamps. The Kompact BMW Kit is a performance bolt-on replacement for the factory plastic bypass valves offering greater boost response and no leaks. Easy to install and set up, the Kompact BMW Kit is an ideal performance upgrade for the current model N54 twin-turbo BMWs, fits BMW 135i, 335i and Z4(Additional kit required).

This BOV system comes with all the necessary hoses, clamps and fittings, Port Blanking Plugs, and Pink Springs Rated -24 to -14 InHg (installed)

Note: For the Z4, an additional kit is required.


Have a listen!



All current BMW: 135i, 335i, 535i and Z4 with N54 twin turbo 3.0L engine.

1 Series E82 Coupe 135i (N54) from 2008 - 2010

3 Series E90 E91 E92 E93 335i (N54) from 2007 - 2010

5 Series E60 Saloon 535i (N54) from 2008 - 2012

Z Series E89 Z4 35i (N54 & N55) from 2009 - 2015 

(Z4 models require additional pipe kit: TS-0203-2001)


Free Next Day Delivery

Free next day UK delivery if in stock and ordered before 11am! We can also ship worldwide, simply contact us for a quote.



One year warranty


Manufactured by



Part Number




31 x 14 x 19 cm



 1.41 kg


Fitting Instruction


Turbosmart Kompact BMW Dual Port Blow Off Valve System 


Turbosmart Kompact Plumb Back Recirculating Blow Off Valve System | N54 BMW 135i 335i Z4 | UK STOCK


 Turbosmart Kompact Plumb Back Recirculating Blow Off Valve System | N54 BMW 135i 335i Z4 | UK STOCK

Customer Reviews
5 Based on 3 Reviews
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Filter Reviews:
Rene .
Netherlands Netherlands
Good product

Very good , beautyful product , easy fit and great quality . So much better than the leaky plastic stock diverters . And again great service from marschal !

Great Upgrade

It works well and fits perfectly for 335i. Very easy installation. Shipping and customer service great as usually.

Better performance while remaining discreet

High quality material, beautiful for those who love well made parts. The kit is complete and everything fits perfectly. Assembly is very easy fo beginners, you just nedd basic tools and patience. These "BOV" will never leak like the original ones they replace. A must buy if you want to increase turbo pressure. Shipped and received quickly. Thank you ML Performance for your great service !