Wednesday, July 12, 2017

Subaru Impreza WRX STI (GRB) Downpipe

SUPERCIRCUIT catless downpipe made for the Subaru Impreza WRX STI 5-door hatch back (GRB) 2.5L AT.

The factory stock downpipe of the Subaru Impreza WRX STI (GRB) with huge catalytic converter on the right and the SUPERCIRCUIT larger bore catless downpipe on the left side of the picture below.

To access to the downpipe, one has to remove the top-mount intercooler from the EJ257 engine of the Subaru Impreza WRX STI (GRB) shown below.

The SUPERCIRCUIT downpipe is designed for direct bolt-on, installed to the outlet of the turbo on the Subaru Impreza WRX STI (GRB) as shown in the pictures below. The SUPERCIRCUIT downpipe is made with grade 304 mandrel bent 3.0" stainless steel pipe and is fully TIG/Argon welded on CNC machined flanges for optimized unrestricted exhaust flow.

At the other end of the SUPERCIRCUIT Downpipe, it is perfectly fitted to the factory stock catback exhaust system, no further mod is required.

This catless downpipe promotes better exhaust flow and is dyno proven to provide plenty of low-end torque and high-end horsepower. It is ideal for ecu remapping/ tuning needs.

To purchase or for more information about the above SUPERCIRCUIT bolt-on catless Downpipe made for the Subaru Impreza WRX STI (GRB) 2.5L AT, please visit us at SuperCircuit exhaust Pro Shop, SS13 Subang Jaya Industrial Estate. Tel: 03 5632 2855 or Send Us A Message using the form on the right of this page.

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