I agree with Pleiades, if the turn you key off then run again, then how come my Akras still 'popped' the next day after fitting them? Even the Dealer where I bought the bike recommend I block the AIS with the pipes fitted. I am more than happy with the Kev mods I've fitted, as are a lot of others I'm sure. I reckon all the Kev mods out there have racked up more than 90k's between them. & I can't recall hearing any problem's with them.

That just my opinion.