exhaust backfire/pop
03-30-2011, 02:20 PM
#1
Thread Starter
Join Date: Mar 2011
Location: Va
Posts: 7
exhaust backfire/pop
hey, i have a stock 2005 mustang gt automatic with muffler deletes. car runs great. but when i smack the throttle at about 40 mph it seems to backfire/pop. it doenst hurt performence or anything. is it just because i have muffler deletes and no tune? any info is greatly appreciated. thanks. if i floor it from any point lower than 40 mph it doesnt seem to do it.
03-30-2011, 06:43 PM
#4
5th Gear Member
Join Date: Oct 2007
Location: NC
Posts: 2,217
A lot of aftermarket exhaust systems pop, and I wouldn't be surprised if muffler deletes did the same. The most common time for it though is just after the car is cold started. It might still happen in the given conditions though...I'm not sure.
03-30-2011, 07:47 PM
#7
2nd Gear Member
Join Date: Mar 2009
Location: VA
Posts: 453
I had the Pypes MM and an O/R x pipe and it would pop a little bit when I first dropped a gear at highway speeds. My car is a manual though and I don't know if it was exactly what you are trying to explain. Any way you can get a video?
03-30-2011, 08:15 PM
#9
2nd Gear Member
Join Date: Mar 2009
Location: VA
Posts: 453
This is where a video would help a lot. If it indeed is a "backfire" then there's a problem. If it's just popping then that is probably a product of the muffler deletes. My popping and crackling went away when I ditched the MM and went to the Stingers. I never mistook it for a backfire but I could hear the popping, especially when I was next to a jersey wall. I put the CAI/tune on the car the same day the exhaust went on so I couldn't tell you if it would be worse without a tune, or if it would even make a difference.