99-04 guys with u/d pulleys: Would you do it again?

nope.

I had a mac 75mm tb/plenum combo, Demolet CAI, Diablo tune with timing fully advanced. i then installed march UDP's and didnt feel a difference.

sadly, when i tried to sell the car i demodded it fully and there was no difference. i have them sitting in my attic, nobody wants them used.

now it might be different if it were steeda UDP's.