Ford Focus ST RS Blow off kit

This Blow-off set is designed for plug and play replacement of oem valve for Ford Focus ST and Ford Focus RS .

Kit contains all mounting accesories for fast "plug and play" installation (silicone coupler may need triming to fit your setup) with  blanking plate for stock DV included. Kit also contains two springs for various boost level for blow off (one hard and one soft).

This set is available in 3 color - red, blue, black.

Made from billet aluminium, this atmospheric valve blows air to atmosphere creating the "Whoosh" sound most commonly associated with rally cars. This increases both quicker throttle response and higher clamping load to maintain boost pressure more reliably.

(please mind this is high quality product made in Poland EU not cheap cast from China)

Twin piston construction allows use this with most cars with MAF sensor where single pistons valves can cause ECU errors.
We cannot always guarantee that each individual’s application will be compatible with a valve that vents the charge air into the atmosphere.

Note: We recommend installation of the valve by a specialized company. Blow off is dedicated to track use and sports cars. The blow-off valve, installed instead of the stock DV valve, may cause a check engine error. If this occurs, remap should be performed to adjust ECU to change done in the intake setup (disable check engine errors permanently).

Blow off valve is supplied with two valve springs - a soft spring and a hard spring.
The soft spring is already installed in the valve and will be perfect for 90% of applications.
The harder spring is supplied separately for self-installation, is designed for higher than stock boost level.

ProPerfekt is polish company produces high quality aluminium CNC machined race parts blow off valves, MBC, blanking plates, recirculating valves, adapters, pulleys, swirl pots, catch tanks etc.

All parts are manufactured and designed in Poland.

We ship worldwide! Our online shop is always at your service!