This is the standard spring supplied with all Respons TMS and Deceptor Pro II valves. For Mach 2 valves, it is available as an additional spring when configured to vent to atmosphere.
Use this spring when the valve is configured to vent to atmosphere and the engine vacuum at idle is greater than 19″Hg.
For full recirculation of air into the intake system and/or engine vacuum at idle below 19″Hg, use the softer 6116 spring.
Suitable for: universal use (not vehicle-specific).
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