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Audi » A4, S4 & RS 4 Models » B7 A4, S4 & RS4 » Engine & Performance
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Forge Dual Piston Ram Dump Valve (must have map sensor)



NOW: USD$146.99


Item#: 110131

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Fitment Guide

Suitable for most turbo cars with an Air Flow Meter
 
Made from billet aluminium, this atmospheric diverter valve dumps the charge-air to atmosphere creating the "Whoosh" sound when the throttle is lifted. This increases both quicker throttle response and higher clamping load to maintain boost pressure more reliably.
 
Unlike single piston or diaphragm diverter valves, this uses counter balanced springs and dual pistons to prevent the valve from leaking air into the intake system at idle. This prevents our diverter valves suffering any of the failures associated with single piston and diaphragm type diverter valves.
 
Dual-Piston Atmospheric Valves and Valve Fitting Kits
"All Forge Motorsport Dual-Piston Atmospheric Valves have been designed and built with the intent of venting 100% of the residual charge air remaining in your forced induction system to the atmosphere at throttle lift.
 
While we have incorporated many elements into the design of the Dual-Piston valves to aid in their compatibility with mass air-flow sensor equipped vehicles, we cannot always guarantee that each individual’s application will be compatible with a valve that vents the charge air into the atmosphere.
 
Forge Motorsport nor any of it’s Authorised Distributors can assume any responsibility for any adverse effects resulting from the installation of this valve onto a vehicle whose engine-management-system, whether factory or aftermarket, is not capable of compensating for the loss of metered air through a vent-to-atmosphere valve such as this. "
 
To view a spring tuning kit for this valve click here

Manufacturer: Forge Motorsport
MFG Part #: FMDV004
Car Model: MK4 Golf & GTI|MK4 Jetta & Bora|B5 Passat|B5.5 Passat|New Beetle|Polo 1.8T|MK1 TT|B5 A4 & S4|B6 A4|B7 A4
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