2002 496/ bravo 1 with complete new outdrive just over a year old. Noticed today after doing almost WOT for a few minutes and back at idle a noise at rear of engine. doesn't change with steering or trim. Almost like a rattle. didn't get a chance to record it. Does a coupler make noise, still have max MPH? Open to ideas for ones who been down this road?

thx

If you have thru prop exhaust, it could be the flappers in the exhaust "Y" pipe rattling.

Has switchable Corsa and was checking through prop mode. Naturally can here when through transom mode.

sorry for late update. New drive self destructed top gears.

thanks for the update, sorry to hear about the drive problem

But was warranty claim, paid the difference and got the "X".