The Subaru Impreza WRX STI Sedan (GVB) is at the SuperCircuit Exhaust Pro Shop's installation bays for the SUPERCIRCUIT Downpipe upgrade.
The top part of the factory stock downpipe can be accessed after the top mount intercooler is removed as shown in the picture below.
Once those nuts that fasten the original downpipe to the turbo outlet are removed, the downpipe then can be taken out from undercarriage of the Subaru Impreza WRX STI Sedan.
This is how the single-scroll turbo outlet of the Subaru Impreza WRX STI Sedan (GVB) after the factory stock downpipe is removed from the EJ257 boxer engine.
In the picture below, the Subaru Impreza WRX STI Sedan's factory stock original downpipe with two huge restrictive catalytic converters VS. the SUPERCIRCUIT free flow downpipe.
The flange of the SUPERCIRCUIT downpipe is made of CNC manchined stainless steel flange and fully TIG/Argon welded for direct bolt-on application to the Subaru Impreza WRX STI Sedan (GVB).
At the other end of the downpipe, it is designed to be compatible with the factory stock cat-back or other direct bolt-on exhaust system, so no mod or weld is required during the installation process.
The top mount intercooler is back in place onto the EJ257 boxer engine after the downpipe is installed.
A peep on the SUPERCIRCUIT Downpipe after the installation is done.
To purchase or for more information about the SUPERCIRCUIT Downpipe made for the Subaru Impreza WRX STI Sedan (GVB), 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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