R-Spec Alloy Dump Valve Blow Off BOV Volvo T4 and T5 turbo engines Focus Mk4 75-inch (19 mm) Aluminium Dome

75-inch (19 mm) Aluminium Dome Super Tweeter

520i / 523i / 528i / 530i / 535i / 518d / 520d / 525d / 530d / 535d

Mounting Hole Diameter (cm) N/A

Staggered Six-Channel Satellite Amp: drive front speakers with 200 W x 2 @ 4Ω

Functionality - To ensure that the functionality of original car

R-Spec Alloy Dump Valve Blow Off BOV Volvo T4 and T5 turbo engines Focus Mk4 75-inch (19 mm) Aluminium DomeBRAND NEW R SPEC TWIN PISTON REPLACEMENT 'BLOW OFF' DUMP VALVE 'Vent to air' type valve for that proper dump valve sound ! Made from high grade alloy and has a twin piston design. Ideal for replacing the original plastic valves where the spring pressure drops fails Also suitable for stage 1 remapped cars as the springs is slightly uprated for higher boost Quick and simple replacement, supplied with alloy blanking plug all you might need is a couple of