ABNORMAL popping from exhaust
 

So I kno the exhaust pops every now and then but when I floor it and change gears around 6k rpms the exhaust pops excessively the best to describe it would be to compare it to a machine gun alotta pops all at once

I've also notice difficulty redlining when I hit the upper rpms I hear a light rattle like water spraying thought it might be my fuel pump but if I turn off the DSC completely it doesn't happen!

Any insight on this one guys!!

A little history?
year, trans, miles, anything else we should know?

Sorry,
05 AT
40,000 miles
Mod: Boost brothers header, rx7 store mid-pipe, Mazdaspeed exhaust
just changed coils last week car runs alot better

Pop is normal as car runs pig rich.....

yea I know it's the best but it's more of a negative sound it's sounds like a machine gun it makes me nervouse

Access port FTW before the end!

New symptoms:
so the car was in reverse and I dropped it to nuetral the car dropped so low that the car shut off for a second then came back on by itself !!

And you have an AT.. hmm idk man, try new battery... im stumped...

Edit: Wait check your MAF sensor... that could be causing that...

Checked the mad it's clean as a whistle my friend said it might b the battery aswell!!
do u think excessive engine vibration cause this

No...