KLEEN/Pair mod ??

[ezydeek]

can someone explain what this mod actually do?

[Wattie]

stops the popping and small backfires when you shut offf the throttle.

wont reall make a difference unless you have a slip on pipe or full system.

[ezydeek]

reading other forums from the US
they say u need to do this if have a pc3 to get better reading
is this true??

[Wattie]

well apparently not. the Kleen air only opens up to let the fresh air in once the throttle is closed. so i dont think it matters.

i stuck a small garden type tap in my one on the Z, and just closed it off. i reall dont think it affects it on the dyno.