Forge Blow off valve Audi A4 / S4 / RS4 B9 en A5 / S5 / RS5 F5 JXB A unique feature of the

A unique feature of the adaptor version is that it allows you to connect a large-port Intake manifold to a small-port cylinder head

This allows an exhaust with a larger diameter to be fitted without excessive vibration or noise

delivers a gain in power and torque across the entire rev range and produces an aggressive sound under load

the racing catalytic converter is designed as a drop-in replacement for the restrictive factory catalytic converter

Designed to reduce the Intake air temperature and maintain stable performance under high load

Forge Blow off valve Audi A4 / S4 / RS4 B9 en A5 / S5 / RS5 F5 JXB A unique feature of theForge Motorsports new generation Blow Off Valve, manufactured in the United Kingdom, is designed for the Audi A4, S4 and RS4 (B9) and the A5, S5 and RS5 (F5). This valve fits the 2. 0 TFSI, 2. 9 TFSI and 3. 0 TFSI engines without the need for any modifications. Featuring a black anodised aluminium housing and an integrated solenoid, this valve delivers optimum performance and a unique blow off sound. Features Direct fit Blow off design (open)