GFB Mach 2 TMS Recirculating Diverter Valve Direct Fitment 05-07 XT Forester (Facelift) 01-07 Impreza WRX & STI 08-20 STI

GFB Mach 2 TMS Recirculating Diverter Valve Direct Fitment 05-07 XT Forester (Facelift) 01-07 Impreza WRX & STI 08-20 STI

$244.00

Tax included. Shipping calculated at checkout.

Using GFB’s TMS technology the Mach 2 can help return the engine to peak boost up to 30% faster than a factory diverter valve when shifting gears (more information below).

Recirculation model for direct factory replacement for performance without the noise
Atmosphere venting kits to convert the recirculating valve if you want noise with your performance

Like the Respons and Deceptor Pro II, the Mach 2 is available in a range of bolt-on kits for most popular turbo models. And when we say “bolt-on”, that’s exactly what we mean! No additional adaptors, parts or vehicle modifications are required – simply remove the factory bypass valve and replace it with the Mach 2 – it’s that simple!

The Mach 2 is configured as a 100% recirculating valve (i.e. bypass, plumb back) and add on kits are also available to convert to 100% atmosphere venting.

Use the recirc model for direct factory replacement when you want the performance WITHOUT the noise! Add the conversion kit when you want some noise with your performance!

Factory bypass valves have two main shortcomings – one is that they are typically designed to start opening above a certain pressure to protect the engine, and the other is they are not optimised for throttle response. Oh, and you can’t vent them to atmosphere without stalling your engine…
The Mach 2 solves all of these issues. It can effectively hold unlimited boost (unlimited in that no turbo could ever produce enough pressure to damage it), and the TMS technology ensures maximum throttle response

Suits:

05-07 XT Forester (Facelift)
01-07 Impreza WRX & STI
08-20 STI

Install Guide

GFB Deceptor Pro II TMS 01-07 Impreza WRX & STI 08-20 STI Only 05-07 XT Forester (Facelift Model)

GFB Deceptor Pro II TMS 01-07 Impreza WRX & STI 08-20 STI Only 05-07 XT Forester (Facelift Model)

$540.00

Tax included. Shipping calculated at checkout.

Now You Can Control The Sound Of The BOV From Inside The Cabin!

So how much more can you do with a blow-off valve? Well, the Deceptor Pro II takes the ‘Respons’ concept even further...

Adjust your BOV venting bias electronically on-the-fly

Revised porting to optimise flow and venting bias

Compact design fits in most factory valve locations

Direct bolt on for many vehicles

New bore finishing process ensures a lifetime of reliable operation

Deceptor Pro II features
Direct bolt-on for most vehicles available:

Remote proportional venting bias/volume control- from silent to loud or anywhere in between
Sleek, compact in-car BOV volume controller with backlit dial
End point adjustment to control maximum vent to atmosphere bias setting
Volume adjustment mechanism driven by a high-torque geared electric motor
Durable, low-friction gear train supported by precision sealed ball-bearing
Supplied with all parts and wiring required to have it up and running quickly and easily

Suits:

01-07 Impreza WRX & STI
08-21 STI Only
05-07 XT Forester (Facelift Model)

Install Guide

GFB Basic Short Shift Kit 6 Speed 01+ STI

$272.00

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6-Speed Short Shift – Basic Kit
New from GFB is the STi 6-speed Short Shift Basic Kit, which has been designed as an infinitely more affordable alternative to STI’s own aftermarket shifter.

It is derived from the popular and unique GFB STI short shifter (part # 4002), which consists of two main parts; the gear lever and the linkage clamp, which work together to allow shift-throw adjustment over the largest range of any shifter on the market.

The new basic kit utilises the adjustable gear lever from the 4002 kit, without the linkage clamp. This means the basic kit allows shift throw adjustment, but over a smaller range. Importantly however, it is easily upgraded to the 4002 kit with the addition of the linkage clamp.

So why choose the basic over the 4002 kit?
When using the full 4002 kit, some people find that the shorter settings are actually too extreme for their taste (particularly on MY06-08 models, as the factory shift is shorter than earlier versions), and only end up using a small amount of the shifter’s range. In such cases, the Basic kit gives the same result at a lower price.

If however you decide that you want to go shorter, you can always purchase the linkage clamp separately and upgrade to the full 4002 kit at a later date – it really is win-win!

As with the 4002 full kit, installation of the Basic kit is all done from within the car.

So how much shorter is the throw?

The GFB Basic kit is adjustable from the factory setting down to around 32-35mm per gate (depending on year model).

Add the linkage clamp and the possible throw range drops to a minuscule 20-22mm

GFB Short Shift Kit 6 Speed 01+ STI

$385.00

Tax included. Shipping calculated at checkout.

Following on from our popular WRX short-shift kit, we have now released a new version to suit Subaru’s 6-speed gearbox found in all late-model STi’s, from MY02 on.

As with our WRX kit, the GFB STi short shift kit includes a unique clamp arrangement that allows the shift throw to be reduced much more than by changing the gearstick alone. As you can see from the picture, the GFB clamp eliminates the need to lift the gearbox linkage higher to reduce shift throw. Instead, you simply select one of the three holes.

The factory shifter in an STi has a shift throw of 40mm per gate; the GFB unit is adjustable from the factory setting, right down to a tiny 22mm per gate! To put this into perspective, the best any aftermarket shifter (that replaces only the gearstick) can hope to achieve is 30mm per gate, without modifications to the linkages or surrounding bodywork.

Installation is done completely from within the car, and is made much easier with the inclusion of a special tool for removal and installation of the reverse lock-out cable pin.

GFB Short Shift Kit 5 Speed 94-00 WRX/STI 01-07 WRX

$283.00

Tax included. Shipping calculated at checkout.

GFB's Short Shift kits are like no other. Until you feel the action of one for yourself, you won't believe the difference!

GFB's unique system means that not only is the shift throw distance fully adjustable, it can be reduced more than any other brand by a long shot (at the shortest setting, the throw from 3rd to 4th is a mere 55mm), whilst retaining the stock gearstick height.If you want a race-car feel when you change gears, look no further than a GFB short shift kit, the shortest throw shifter on the market!

GFB Non-Underdrive Crank Pulley 94+ WRX/STI 98+ Forester 98+ Liberty

$205.00

Tax included. Shipping calculated at checkout.

GFB have re-designed their WRX lightweight pulley to provide even more benefits. It is now shaped to look exactly like the factory Subaru pulley, so it goes unnoticed in your engine bay - it even uses the factory belts! A significant amount of weight has been removed from around the rim for even better throttle response. The pulley weighs in at 578g (previously 790g), compared to the factory 2180g on the WRX and 2575g on the STI. This pulley will improve throttle response (particularly off-boost response) and allow the engine to rev more freely in the upper rev range.

It suits all Subaru EJ-series engines, and does not require additional belts

GFB Respons 01-07 WRX 02+ STI 03-07 Forester

GFB Respons 01-07 WRX 02+ STI 03-07 Forester

$397.00

Tax included. Shipping calculated at checkout.

Featuring GFB’s patented venting bias adjustment system, the Respons allows you to precisely control how much air vents from each of the two outlets.

Why is this so important? Two key reasons:

Adjust how loud the blow-off sound is. Recirculate all of the air for silent factory operation, vent it all to atmosphere for maximum noise, or set it ANYWHERE in between to suit your preference.

Get a blow-off sound WITHOUT causing stalling, backfiring, or any other BOV-related issues, even on a car with a sensitive airflow meter (MAF).
Hold on, it gets better. The Respons isn’t just a noise-maker. It also;

Offers better throttle response
Faster boost recovery on gearshift
Unlimited boost-holding!

For example, using GFB’s TMS (Turbo Management System) principle, tests show that the Respons can return the engine to peak boost up to 30% faster than a factory diverter valve when shifting gears.

Impreza WRX & STI 01-02

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