
Xforce Exhaust for Subaru WRX / STI G3, VA Sedan Varex WR Valved Cat B
SWDRRP$1749.99Xforce Exhaust.
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XForce Performance Exhaust System.
Category: Complete exhaust systems


The XForce E4-SW18-CBS is a cat-back exhaust listed to fit the Subaru Impreza from 2007, with a recommended retail of $799. It changes the rear section behind the catalytic converter and is fitted at our Illawarra workshop.
This cat-back replaces the Impreza's exhaust from behind the catalytic converter through to the tailpipe, leaving the cat and the front pipework in place. The supplier records the cat-back type and the Impreza fitment from 2007, but not the diameter, material or muffler layout for this listing, so those are confirmed against the kit at fitting rather than stated here.
A cat-back works rearward of the catalytic converter, reworking the rear pipework and silencing while leaving the emissions hardware and the engine-side run untouched. On the Impreza it changes the back-half character and the note — a fuller sound than standard. No sound or flow figures are published for this part, so we won't put numbers to it.
It's listed to fit the Subaru Impreza from 2007. The supplier doesn't record the exact engine or model code in this listing, and fitment feeds can be imperfect, so confirm your specific Impreza with the workshop rather than treating the listed fit as covering every build from that point.
Oak Flats Muffler Men supplies and fits XForce cat-back systems in-house across the Illawarra. We check the part against your Impreza's hangers and rear layout, fit it square and seal each join. Send your build and we'll confirm it against the listing before booking the bay; the recommended retail is $799.
Stocked and fitted by Oak Flats Muffler Men, the Illawarra exhaust and 4x4 specialist in Oak Flats, NSW.
Oak Flats Muffler Men can check this part against supplier specs, part number, image, RRP and vehicle details for customers around Oak Flats, Shellharbour, Wollongong, Dapto, Albion Park, Kiama and the northern suburbs.
Send the vehicle make, model, year, engine, current issue, desired sound or performance goal, and clear photos of the existing exhaust where available.