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#81: 01-17-2013, 01:44 PM
Fischbach31's Avatar
Title: Contributor
Location: PDX
Car: 2010 LGT Stage 2
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From the mouth of nameless...We run a 2" rear circuit which biases the frequency to reduce drone. It also builds substantially higher midrange torque than the competition when combined with our midpipe. The Y section in the midpipe is also stepped to increase flow at the transition between the single and dual circuit sections. On a 2011 STi sedan we made 32ft lb of torque and 21hp at the wheels with the catback. In full TurboBack form we are exceeding the competition's torque numbers by up to 22 ft lb. 😊