I just installed Flowmaster 40 series axleback mufflers, have a FRPP CAI and am running a Brenspeed tune and now my car is REALLY missing under WOT. Do I need another tune since I added the axlebacks???
if it is misfiring it should throw a code
yes it will.....are you getting any CELs....are you paranoid and making something out of nothing?
So you havent tuned the car since adding a FRPP CAI and the mufflers? What kind of FRPP CAI is it, 85mm Bullitt or the 90mm
i made a post a while back about this, i also have flowmaster axel back not sure if there 40 or 50 series, but my car is completely stock besides a short throw shifter, and when ever i rev it in any gear over 4500 it sounds like its hitting the rev limiter,like a big power loss, and it just farts around...maybe its our mufflers, in the thread i made the topic of clogged cats came up.. but now that i see this, prolly just the mufflers..
i was on the high way last night trying to get a better idea of what it sounded like so i kept it in third gear at about 4500K and the check engine light started blinking and i had to accel. i think the blinking check engine light means a missfire somewhere.. i dont know how to check codes.
Thats kind of crazy....I have the Flowmaster 40 series and have never had a problem like that and I have many more engine mods than a cold air intake....I have had my Flows on for about 3 years now...I know that they do have a more raspy old school sound when you rev the engine.....maybe it is just something you are not used to yet....Hope you find out what it is if it is even anything....Keep us posted...