i jus put on my dp, the flange looks to be a 3'' running into the small 2.xxx cat inlet (for now) im afraid the exhaust pulses may back spin the turbo from such a reduction....? but my question is is there anyone who makes a 3in inlet with a stock size outlet?? my apexi gt spec catback bolts perfect to my stock cat thats why....

or you folks running the apexi gt spec catback whatd you do with your dp cat/testpipe setup? oh and who sells turbo outlet doughnut gaskets??
thanks!

 

i ran a tanabe 2.75"dp, stock cat, 80mm exhaust, tuned on 91 here in cali and i hit 288whp/282tq on a mustang dyno. the tuner drop the boost a bit since i'm on the stock cat, so power dropped down to 284whp/282tq.