I'm fairly new to this mustang game here but I have a 99 cobra with h-pipe flows and a diablo delta chip. I put a cold air intake on it Saturday but I am still using my stock pipe down to the stock MAF. It's pretty much just the elbow and a filter. Anyway...i unhooked my batt and everything when i was installing it and when i was done and had everything back together it worked just fine for like 20 miles. the next day i got in and drove for about 3 miles and then it started to resist a little. it was almost like a misfire but the car wasnt chugging...just resisting and losing power. after about 10 miles of this it started running fine again. i should add that i had just turned on my a/c for the first time after the install as well just before it started acting up. and it was all the way through the powerband. I am stationed at Eglin AFB and I am leaving tomorrow in the car going home for thanksgiving so any help would be GREATLY appreciated. Thanks alot