IN STOCK READY TO SEND - VERY FAST UK DELIVERY


The R-Spec Performance symposer replacement kit for the MK3 Focus ST & RS 2.3 Turbo eliminates the much criticised and very common boost leaks and running issues that are associated with the factory symposer diaphragm splitting etc, it also eliminates the artificial droning cabin noise.

This symposer replacement kit also incorporates an optional 90 degree connector for easy installation of boost gauges etc. There is also a plug included for installations that do not require a boost gauge connection.

Installation instuctions are included


Suitable for:

Mk3 Focus ST 2.3 Turbo (2012-2018)

Mk3 Focus RS 2.3 Turbo (2016-2018)


This is a must have product for every MK3 Focus ST/RS owner and is an essential part of the tuning process if increasing the power output from your ST 2.3 Turbo engine.

Installation is simple DIY job and is completely reversible. We do stock other specific upgrade products for the MK3 Focus ST/RS 2.3 Turbo, so please see our other Ebay items for sale.


  • Billet aluminium symposer replacement plate (Anodised black)
  • Billet aluminium symposer hose plug (Anodised black)
  • 2 x Fixing bolts
  • 1 x High temperature seal
  • 1 x 1/8 NPT plug (To use if a boost gauge connection not required)
  • 1 x 90 Degree boost gauge connection


R-Spec Performance Products Ltd is probably the largest gauge supplier in the UK and we hold everything in stock ready for immediate dispatch. We have 1000's of gauges & pods etc in stock so please check our other Ebay items or just contact us with your requirement so that we can list it for you.



inkFrog