gear_monkey Posted January 24, 2013 Share Posted January 24, 2013 Edit.. Sorry, this should have gone in exhaust section. Thanks to those who posted. Link to comment Share on other sites More sharing options...
ericem Posted January 26, 2013 Share Posted January 26, 2013 Try resetting the ecu or maybe the sound of the dp vibrating through the crossmembers made you think the car was faster?! Link to comment Share on other sites More sharing options...
I Donated bucko3the7man Posted January 26, 2013 I Donated Share Posted January 26, 2013 I dunno about your tuner, but mine when he does dyno tunes finalizes them on the street afterwards Link to comment Share on other sites More sharing options...
fahr_side Posted January 26, 2013 Share Posted January 26, 2013 I'm assuming the loss of torque is because the invidia dp has a much sharper bend coming out of the turbo vs. the Perrin and this is resulting in a lower amount of air flow? I've tuned STis with both downpipes and never seen more difference between the two than the usual noise range. Did you disconnect the battery during the install for any reason? Obligatory '[URL="http://legacygt.com/forums/showthread.php/2008-gh8-238668.html?t=238668"]build thread[/URL]' Increased capacity to 2.7 liters, still turbo, but no longer need spark plugs. Link to comment Share on other sites More sharing options...
compsurge Posted January 26, 2013 Share Posted January 26, 2013 What's your IAM at? 0.75? Link to comment Share on other sites More sharing options...
fahr_side Posted January 26, 2013 Share Posted January 26, 2013 What's your IAM at? 0.75? Don't bother, he found the problem. Multiple threads... Obligatory '[URL="http://legacygt.com/forums/showthread.php/2008-gh8-238668.html?t=238668"]build thread[/URL]' Increased capacity to 2.7 liters, still turbo, but no longer need spark plugs. Link to comment Share on other sites More sharing options...
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