cobb intake f@#ked fuel trims
 

had to take my cobb intake off,it was causing me to have 10+ltft at idle and 15+at heavy throttle.afr was still in the 13's when i was at 16 psi of boost,car did run like a bat out of hell and got just a little knock at 5000 rpm kr1.1 or less.put the factory intake back on and my trims are back below 5 all conditions.

AFR's in the 13's at WOT is way too high. Sounds like you're pulling in unmetered air at WOT.

yeah thats what i thought too,checked every clamp and hose,even cleaned my maf sensor.put the stock intake back on and all is good.afr drop fast to 11's,10's,9's.something with the cobb intake,guess i need accessport.