I've tried that a few times. Maybe I'm not doing it quite right (I believe I am though), but only once in
a while can I make that happen. I think my muffler is just a bit too restrictive though. It's a Cobb SS 3",
to stay on the more modest/stealthy side of things.
I figure I SHOULD be able to though seeing how I run a cattless 3" downpipe. I sure can back fire on
demand if I'm running an open downpipe, with the catback removed...LOL
Generally, the only time I backfire is when I'm engine braking, rolling up to a stop sign or something, I get
a couple minuscule pops...