my idle is really killing me...i don't know what's up with it

i'll blip the throttle and the revs will fluctuate when they fall back to idle speed
then they smoothen out

when in idle there are random popping sounds , and that doesn't seem normal

2 bolts on the dp are not bolted in so i'm getting a small exhaust leak out of there if that has anything to do with it....

please help
thanks

 

What's your setup? Is everything new to the car?

 

whats your fuel and ignition setup?
definitely bolt on your downpipe correctly... boost leaks are not a good thing.

 

i'm running a turbonetics t3/t4
drag manifold
hks ssq bov

fuel
Apex'i AFC hack
dsm 450cc injectors
leaned out to -40% right now...still rich

the popping only happens at idle
idle fluctuations only after the throttle is blipped

 

it's kinda weird and i don't think it's normal

 

Downpipes don't leak boost.. what it will do is suck air in the exhaust and cause small back fires which is what the poping sound is.. if you seal your exhaust system it should go away.