Anybody else experiencing this. On my car it has a backfiring/popping at random times. I used to have this issue even when stock, but now it seems more often & more random. Hear a popping sound, sometimes several in a row at random times. it used to be when I was deceleratin, now it seems when I am decelerating, or even just cruising. Talked to greddy and they said that is normal, but if I lean out the fuel a bit, would that help the issue a bit (less excessive gas to be burned off).

Yeah, my car is the same. My 3rd gen did it alot and so I just expected the 8 to do it aswell. It is normal but noisy:).If you have a mid pipe flames usally follow after that noise:D

sounds like you have a defective kit....why don't i buy it from you for $100 and i'll check things out for ya!...:D

to much gas

Same Here

o man, i bet that thing sounds like a beast.

Oh well, I guess that is just an excuse to turn the radio up louder :D

is it backfiring or detonation?

is it backfiring or detonation?

Backfire. It's coming out of the tailpipe, not the engine bay. We tested it on the dyno & it ran fine. I think the thing is running pig rich, Greddy has built this kit very safe, but it is not burning up the fuel & it is coming out of the pipes as backfire.

fanman why dont you tune it down take some gas out..

fanman...so your going on saturday right? I wanna see your kit..

when the older rotaries ran rich enough they shot flames!

get any of that?

fanman...so your going on saturday right? I wanna see your kit..

Yep, I'll see you there. I got the KFC.

when the older rotaries ran rich enough they shot flames!

get any of that?

Haven't stood behind my car to see that. I do have a Sr Motorsports hi-flow cat on mine (w/resonator). Maybe if I had a straight pipe it would be more pronounced.

fanman why dont you tune it down take some gas out..

Still running the stock password protected E Manage unit. No changes to the Greddy program(for me)...yet.

would they give it to you ???

no

ok wow i got the exact same thing and my car does the same thing so i guess i feel alot better but are you having a problem with a small amount of smoking like when you start it up or when you take off?

O ya I backfire some myself. NMMI security followed me to gas station one night, thought I shoot paintball gun at the college (LOL CCL and packing a .45).

Hope this isn't a serious question :). "hey why is my car loud now"? Maybe because you put an exhaust on it. Its kind of like that type of question :icon_no2: