BMW N55 Go Fast Bits Diverter Valve Upgrade (135i, M135i, M235i, 335i & 435i)

BMW N55 Go Fast Bits Diverter Valve Upgrade (135i, M135i, M235i, 335i & 435i)

Regular price
£101.66
Sale price
£101.66
Regular price
£112.96
Sold out
Unit price
per 
Tax included. Shipping calculated at checkout.

Go Fast Bits DV+ Diverter Valve Upgrade – T9356

Worldwide Patent & Design Patent Pending

  • Retains factory solenoid coil for quick ECU response
  • Upgrades weak plastic components with billet aluminum and brass internals
  • Direct-fit installation with GFB TMS performance benefits
  • Exclusive "pilot-actuated" valve mechanism for ultra-fast response under high boost

The GFB DV+ is designed to fix the weaknesses of the factory diverter valve found in many BMW, Fiat, Abarth, and Alfa Romeo turbocharged vehicles. While the OE solenoid performs well, the internal valve often leaks or fails under high boost. GFB replaces the internal plastic parts with durable anodized billet aluminum housing and a precision brass piston.

Benefits include improved throttle response, faster actuation, better boost-holding capability, and no compressor surge or flutter. Installation is simple, with no need to rewire or run vacuum lines like other aftermarket diverters.

DV+ Diverter Valve Cutaway

Unlike other diverter valve kits that replace the entire system with slower pneumatic setups, the DV+ keeps what works and upgrades what doesn’t, delivering a high-performance solution that’s faster, easier to install, and more reliable long-term.

DV+ Exploded View

Most modern Euro cars use solenoid-controlled diverter valves. While fast, they suffer from weaknesses in both diaphragm-type and plastic piston-type versions.

Diaphragm Failure

Issue 1: Diaphragm ruptures easily under chip tuning and higher boost.

Piston Leak

Issue 2: OE plastic pistons leak by design and often fail to close properly after high-boost shifts.

With a pilot-actuated brass piston system, the DV+ maintains high-speed operation while opening only as much as necessary, improving both performance and longevity compared to the factory valve.

Boost-Responsive Piston Action

Compatible Vehicles:

BMW: 1 Series (E82, E88, F20, F21), 2 Series (F22), 3 Series (E90–F31), 4 Series (F32), 5 Series (F10, F11, F07), 6 Series (F06, F12, F13), 7 Series (F01–F04), X3 (F25), X5 (E70, F15), X6 (E71–E72)

FIAT: 500 Series 1.4L Turbo (135hp–180hp), 500C/595C Convertible

ABARTH: 500/595/695 1.4L US Models, 124 Spider 1.4L Turbo

PUNTO: 199 1.4 Turbo (155–180hp)

ALFA ROMEO: Giulietta 940 1.4 TB (120hp–170hp)

Before shipping, we verify fitment based on your UK registration or the last 7 characters of your VIN. Enter your vehicle details during checkout.

T9356

Manufacturer: Go Fast Bits (GFB)

Warranty: 1-Year Manufacturer Warranty