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The Respons isn’t just a noise-maker
and a BOV5 SuperSonic 38mm VTA (Vent to Atmosphere) Blow Off Valve
but should only be used when the valve is fully recirculated and/or the engine idle vacuum is less than 19”Hg
GSP CV Axle extension shafts are engineered to provide OE fit
220-A | EJ257 STI Dual AVCS rb25 The Respons isn’t just a256 high torque cams to suit near stock EJ257 engine. Excellent throttle response. Ideal in 36mm restrictor rally classes. Suits small frame 46 54mm turbo. Kelford Cams recommend valve spring upgrade KVS109 STI.
