Hi all,

It literally takes about 7 minutes to install the mufflers and air cleaner, however you add hour/s when you install a headpipe.

I know it's ok to install the muffler only on a stock tune, but was wondering about headpipe only (as the muffler is the large restriction). I only have time to do a headpipe install tomorrow, and I won't have my PV back to tune the bike for the next week.

Would it be ok to install the headpipe only with stock pipe and cleaner? Like I said I only have time to install the headpipe tomorrow or it sits for the next while.

Thanks