Product Details: One of the loudest valves available from GFB, the Mach 1 will ensure you're heard before you're seen! Featuring a single trumpet discharge outlet, this is a great replacement for cheap factory valves and can help to reduce turbo lag and increase throttle response while blasting out a great WHOOOSH noise between gears.

Fits:

Ford XR6 Turbo (BA Model)
-NOTE: GFB Valve is to be installed in the reverse direction when compared to the factory valve.
Ford TX3 Turbo, All Models
-5020
Ford TX5 Turbo, All Models
-Welding required
Holden Commodore VL Turbo, All Models
-Welding required
Mazda 626 and MX-6 Turbo, All Models
-Welding required
Mazda RX7, Series 4/5 Models
-5020
Mitsubishi Starion, All Models
-Welding required
Mitsubishi Cordia Turbo, All Models
-Welding required
Mitsubishi Lancer GSR and EVO, All Models
-None required for 1001-5
-Straight swap for the factory valve when used with the recommended adaptors, no modifications necessary, unless stated, all other valves only require small modifications such as hose cutting or a replacement hose.
Mitsubishi Galant VR4, All Models
-5102 for 1001-5
-Straight swap for the factory valve when used with the recommended adaptors, no modifications necessary, unless stated, all other valves only require small modifications such as hose cutting or a replacement hose.
Nissan 200SX S14-15
-None for 1001
Nissan Silvia S13
-None required for 1001-5
-Straight swap for the factory valve when used with the recommended adaptors, no modifications necessary, unless stated, all other valves only require small modifications such as hose cutting or a replacement hose.
Nissan 180SX (CAI8DET)
-Welding required
Nissan Skyline GTS-T, R32
-5102
-Straight swap for the factory valve when used with the recommended adaptors, no modifications necessary, unless stated, all other valves only require small modifications such as hose cutting or a replacement hose.
Nissan Skyline GTR/GTS-T, R33-34 Model
-5103 for 1001/4/5
-NOTE: Some GTS-T models may be sensitive to full atmosphere venting valves. In such cases the 1003 or 1011 is recommended.
-Straight swap for the factory valve when used with the recommended adaptors, no modifications necessary, unless stated, all other valves only require small modifications such as hose cutting or a replacement hose.
Nissan Pulsar GTi-R, All Models
-None for 1001-5
-Note: All valves for this car must use 1002 spring!
-Straight swap for the factory valve when used with the recommended adaptors, no modifications necessary, unless stated, all other valves only require small modifications such as hose cutting or a replacement hose.
Nissan 300ZX, All Models
-None required for 1001-5
-Straight swap for the factory valve when used with the recommended adaptors, no modifications necessary, unless stated, all other valves only require small modifications such as hose cutting or a replacement hose.
Subaru Impreza WRX & STI, MY94-96
-For 1001/4/5, 5020.
Subaru Impreza WRX & STI, MY97-98
-None for 1001-5
-Straight swap for the factory valve when used with the recommended adaptors, no modifications necessary, unless stated, all other valves only require small modifications such as hose cutting or a replacement hose.
Subaru Impreza WRX & STI, MY99-00
-5101
Subaru Forester GT, MY99-02
-5101
Toyota Celica GT4, ST205
-None for 1001-5
Toyota Supra (2JZ GTE)
-Custom installation with additional hoses
Toyota Soarer (IJZ GTE), All Models
-5105 and 5030 for 1001-5
-Straight swap for the factory valve when used with the recommended adaptors, no modifications necessary, unless stated, all other valves only require small modifications such as hose cutting or a replacement hose.