My notch backfires every now and then...

[Stever89]

I suspect it's the LT headers leaking a little, only happens when I'm slowing down from a good run in 4th gear, and not all the time.

Yesterday, I'm in a whole gaggle of commuters in rush hour, surrounded by soccer moms, SUVs and rednecks. .....POW!

Usually it's embarrassing, but this time I was giggling a little, knowing someone just crapped their pants.

 

[SVT32VDOHC]

Tighten them bolts up. Get the locking header bolts. I'd change plugs too, they might be getting a little fouled out with a big exhaust leak.