This Subaru WRX STI performance exhaust is made in 3"/76.2mm pipework and fits from the turbo backwards (Turbo back system) these parts replace the front pipe, standard catalyst, centre and rear sections.
Th high-flow sports cat version will enable you to pass a UK MOT emissions test or police roadside checks. This part includes a larger than normal 4.5" (114.3mm) 200 cell high flow sports catalyst for optimal flow rates and allowing for the biggest performance tuning improvements whilst keeping the car road legal.
The de-cat exhaust version is sold for motorsport and off-road use only and will NOT be able to pass a UK MOT emissions test or police roadside checks.
The resonated exhaust option includes the centre silencer and has a subtle but sporty tone. This part is also available as a non-resonated version which is a louder option as it excludes the centre silencer and therefore, has a sportier exhaust note.
All relevant fittings and gaskets are supplied. (Except turbo gasket).
Fitted images show the resonated turbo back exhaust with sports catalyst.