I have a 2003 C230 Kompressor and i want to make more boost....Which pullies do i have to change? The Supercharger pullie or the Crank pullie or both...and do i have to do anything else to the motor if i change the pullie?
Thanks

Everything you need to know is here!
http://www.kleemann.dk/site/Main/tuningproducts/performancekits

__________________
Current Stable:
01 ML55 AMG
92 500E (a few mods)
87 300E (lots of mods)
00 Chevy 3500HD Diesel Box Truck
68 18' Donzi Marine
06 GT i-Drive7 1.0 Mountain Bike (with GPS!)

PREVIOUSLY OWNED:83 300SD, 87 420SEL, 88 420SEL, 90 420SEL, 86 560SEL, 86 190E 2.3-16V AMG, 94 E320

That website Link is great...how much would that cost...and is it worth the cost/benifit ratio...
PS..what about extra stress on the motor?

Kleemann is a very good tuner, they know what their doing. The price is high, I would imagine $1500-$2000 for a pulley kit but the added power would be worth it,,, it think. There's a little extra stress on the motor however, not enough to be concerned about longevity. I would contact your local dealer for pricing and decide weather the HP per $ is worth it to you.

__________________
Current Stable:
01 ML55 AMG
92 500E (a few mods)
87 300E (lots of mods)
00 Chevy 3500HD Diesel Box Truck
68 18' Donzi Marine
06 GT i-Drive7 1.0 Mountain Bike (with GPS!)

PREVIOUSLY OWNED:83 300SD, 87 420SEL, 88 420SEL, 90 420SEL, 86 560SEL, 86 190E 2.3-16V AMG, 94 E320