Think it needs a pulley extracter to remove ?
And i take it its held on by a allen key / bolt ??
Ive not looked at mine .
Looks pretty straight forward job to do .
Keep us updated and do you feel the difference in power ??
Oh what was the cost ?
Yes, mine it's just press-fitted. No locking screw.Is the pulley just press-fitted? No locking screw?
Then maybe temperature treatment will help.
Aluminium expands much more when heated, than steel does, so putting the pulley in an oven, heated to 120-140 degrees Celsius, should expand it enough for it to slide on the axle.
Just to make sure, you can at the same time treat the axle with coolant spray, or dry ice, shrinking it a bit.
this pulley should be carbon steel made..it want splip any time soon (if it is aluminium, slipping is just a matter of time...and you dont want that while spinning at 18.500 rpm). Did you also remapped the ecu?
how did you clean your injectors?