Underdrive pulleys for the accessories?
You may as well do it the right way...

 

Sure, but the sourcing info on the underdrive ratios for each underdrive pulley has been challenging, especially since I can't find details on the size increase of the crank pulley upgrades.
Can't risk picking pulley sizes ***** nilly and have belt slippage.

 

It is not uncommon to need a belt replacement when changing pulley diameters.

 

Finally I received my dyno sheets.
Stock soft vs tuned + watermeth (both on hardware changes - bigger IC, smaller upper pulley, K&Ns) & tuned vs tuned + meth.





Hope it helps.

Edit: "Blurred" tuner's details, just not to be considered as spammer/advertiser etc. If anyone wants to get in touch with them - pls PM me, I will share details.

 

Nice torque curves!