Exhaust pops and bangs

[geraintthomas]

Originally Posted by alm001

Can you share a pic of what your piping looks like now?

I agree that while it may be viewed as immature, popping exhaust is one of life's great joys.
Many times while slowing in 2nd, I will graze the throttle to open the injectors up for a cycle to get some pops out of mine.

When your car is warm, and you slow down in gear (past a certain rpm), the injectors are not operating. You'll see this on an air fuel meter as pegged lean. Tapping the throttle will turn them back on.

Haven't got a proper photo unfortunately but I'll get one as soon as I can. It's just a 1" pipe that goes from the pipe after the CAT, straight into the tail pipes, bypassing the back box. Same on both sides.

[j.fro]

I'm partial to the rumble, too, and I've found that rolling onto the throttle on decelerating just a bit produces exactly that sound.
BTW, you didn't happen to lend a bicycle to somebody in a yellow jersey recently, did you???

[BYprodriver]

Originally Posted by geraintthomas

Haven't got a proper photo unfortunately but I'll get one as soon as I can. It's just a 1" pipe that goes from the pipe after the CAT, straight into the tail pipes, bypassing the back box. Same on both sides.

Reducing back pressure has leaned out the air/fuel mixture causing the pops during warmup cycle. Once it warms up the DME compensates as much as it can to restore the ideal air/fuel mixture.