rbbTransAM

I just installed Flowtech LT headers along with the TSP X pipe and replaced the plugs an wires as well and now whenever i downshift and the rpms get lower i can hear lots of small backfires and they're one after another, it also backfires when i get on it and shift and when i start it up on the occasion. The car is untuned and at the moment thats my only idea, anyone got any others?

Ice78Transam

iTrader: (1)

You sure its not just loud burbling? That would be completely normal. Otherwise, as your about to hear over and over, get a tune.

brian_rs/ss

mine did the same thing, welcome to free flowing exhaust


and no a tune wont necessarily help, it may actually make it worse if you run more rich. don't worry though it doesn't really mean there's something wrong.

razer900

I had the exact same thing after my install also, It turned out to be a cracked plug. Get the codes read by a good reader before you start tearing into it. That will diagnose any problems you may have.

fucter

iTrader: (5)

are you misfiring?

also, could just be normal, my bone stock motorcycle makes all kinds of crazy noises, you just can hear it more without the restrictive mufflers etc in the way.

KRAZY K 2000 TA

iTrader: (5)

plugs or bad wire its happened to me at least four times since 2000 put a set of the NEW E3 plugs in it and had one bad right off the bat

rbbTransAM

Its burning gas if anything but ill check all of my plugs and wires. Threre arent any performance issues as far as i can tell becaue it definitly has more power after the install.

omarrakeen

iTrader: (2)

are you running mufflers with cats or cats only? i choped off my muffler and ran cats with Y pipe and it did the same thing kinda nice actually i dnt think theres anything wrong ....

rbbTransAM

Im running no cats and dynomax bullets with the tsp x pipe system. I can smell unburn't gas in the cab almost all the time.

Sicko

iTrader: (1)

Isnt it awesome! I cant help but get excited when I smell it.

brian_rs/ss

OP are you running a catch can? just curious cuz you might be passing some oil through your motor via your PCV system, could be causing some issues.

Juicy J

iTrader: (5)

If it's actually backfiring, and not just popping/gurgling, 9 times out of 10 there is a hairline crack in a spark plug. Cracking a plug is pretty easy to do in a header install.

It's not because the car is untuned.

MrK

iTrader: (2)

i have a spintech with 3in pipes and shorty headers with no cat and it burbles and pops like its going out of style gotta love the unburnt fuel smell.

dbeach2001

I run Kooks long tubes and their off road Y pipe through GMMG exhaust and it back fires and pops a lot! I like it myself! I'd like it even better if it throw flames!

rbbTransAM

So i finally swapped out all plugs and wires and it still backfires like a ****, and my ses light comes on and off for the post cat sensors and my air meter, could that cause these backfires?