Current mods:
3.4 mps
180 tstat
Speed daddy headers
Egr, cat & ubend delete
3" dp
magnaflow mufflers
ngk iriduim plugs and prj wires
custom tune by zack
new coils
k&n intake
zzp tb spacer
started yesterday when driving and come to stop or just idling rpm drops and goes back up. Had the window down and heard it puff in the exhaust so maybe a misfire. Happened before when i had AL104s. Thought it was plugs changed to iridiums.. But happened again. Could it be the wires gone bad.. Please lmk asap