Quote:
Originally Posted by Gazer
I got a piper 3" straight through get pops and bangs, mainly more when the engine is higher up the rev range or when exhaust is hot then does it at low revs alot  |
The piper has an inch and a half of extra silencer than the
KR Backbox. When I designed it I wanted a smooth bend so had to lengthen the pipe at back at the expense of noise reduction.
Sounds to me like the car in question is fuelling very nicely or its not doing something on overrun.
Maybe some longer duration
1321708 camshafts are needed to get fuel into the exhaust
