RCM Billet Tumbler Generator Valve (TGV) Delete Kit WRX STI 2008 - 2014 Panel Filters The Nitron R1 system offers

The Nitron R1 system offers unrivalled performance and value with a design that gives drivers a wide range of effective

This silencer not only helps release power from your Impreza engine but enhances that familiar Impreza exhaust note

When thinking of purchasing any engine components (in particular a complete stroker kit) it becomes vital that you make your choices wisely

This insert dramatically improves the ability of the sump to hold oil around the oil pick up pipe

to ensure you have the very best combustion chamber armour

RCM Billet Tumbler Generator Valve (TGV) Delete Kit WRX STI 2008 - 2014 Panel Filters The Nitron R1 system offersTumbler Generator Valves (or "TGV" as they are most commonly referred to) can be found on Impreza WRX, Forester Turbo and Legacy GT models from 2001 onward. Their prime purpose is to reduce emissions from cold idle to meet standards governed by the EU emissions regulations (similar regulations also exist for both the US and Japan). Whilst this may be good for the environment it does little to aid the performance of your car and it's not uncommon for