Engine/Power - EJ25T (STI and 2006+ WRX) Discussions about the USDM 2006+ WRX and WRX STi 2.5 liter turbo flat-four.

Exhaust question

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Old 08-12-2013, 02:15 AM
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Car Info: 06 Subaru Impreza WRX STi
Exhaust question

I have an 06 wrx sti, wondering what people use to make a stock down pipe and an hks carbon ti work? Kind of a newb question but I'd appreciate your guys input. New owner and the previous one wasn't the sharpest tool in the shed when it came down to certain mods.
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Old 08-15-2013, 10:06 AM
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Bolts

.. get new hardware from your local hardware store, it needs to be thin enough so go through your stock dp hardware holes, use large washers on the catback side.
.. remove the donut gasket on the stock dp.. it will slide off. Save it.
.. use a 2-bolt, 3 inch exhaust gasket when mating the dp ad cb. Part of the stock dp will sit inside the cb.

Last edited by Superusdm; 08-15-2013 at 10:12 AM.
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Old 08-15-2013, 10:16 AM
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Stock downpipe to 3 inch catback adapter + gasket
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