Following the increase in Alert Levels in NZ, we will be closed until further notice. Stay safe and keep well. If you are looking for some interesting reading material on how to improve your vehicle's cooling performance, please go to the TSD section on our page.


Improve Your Vehicle's Cooling Performance With TSD-Heat Dispersant Coating.

Purchase A GFB Boost Controller AND A Blow Off Valve In A Single Purchase, Receive A 5% Discount .

The Discounts will be reflected in the shopping cart.


Heat Dispersant Coating For Intercoolers, Radiators, Oil Coolers, etc

TSD Coated EVO

TSD Coated Intercooler

Improve Your Vehicle's Intercooler Cooling Efficiency Note the color white on the coated intercooler.

GFB Respons TMS Blow Off Valve

GFB Respons TMS T9000.

GFB Respons Blow Off Valve T9035

Enhance Vehicle Cooling Performance

The GFB Respons blow off valve is designed specifically with the aim of improving throttle response and reducing turbo lag.

On top of the TMS benefits, the Respons also packs GFB’s patented adjustable venting bias system found on the Stealth FX. So if you want noise with your performance, the Respons can deliver! By fine-tuning the venting ratio, you CAN achieve a blow-off sound WITHOUT throwing a CEL, running rich, stalling, using more fuel or causing any other problems commonly associated with atmoventing valves on cars with MAF sensors.

Tests show that TMS features can return the engine to peak boost up to 30% faster than a factory diverter valve when shifting gears.

Available in a range of universal hose-mount or direct bolt-on configurations for many popular models:


GFB T9035 Blow off Valve suits the following vehicles:

Nissan PS13 Silvia S13 180sx CA18DET/SR20DET (88-97)

Nissan N14 GTiR Pulsar SR20DET ( needs the softer spring # 6116 installed)

Nissan Z32 300ZX VG30DETT ( 2x T9035 required - Please enquiry about price)

Subaru WRX/STi (GC8-GF8) MY97-98 EJ20T

Toyota Celica GT4 3S-GTE (ST165-ST185)

Toyota Celica GT4 3S-GTE (ST205)

Enhance Vehicle Cooling Performance