New Grimmspeed Downpipe has arrived!
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12-05-2012, 10:30 AM
*outskirts of motor city*
2015 WRX (base) 6spd
Originally Posted by
I can't wait to see the power gains from the GS downpipe over any other aftermarket downpipe!
Probably the same as any other bellmouth/divorced.....guys its a tube.
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