Let's settle the contentious dispute over pulleys and their side effects right here and now. Please answer the following question:

What manufacturer made your pulley?
Have you had any problems with your pulley?

 

Wetterauer pulley kit...result...removed kit & replaced fried S/C.

 

screw-on alloy crankshaft pulley (25 cm), works w/o problems since 3 years. Only issue was 3000 rpm stumble which was resolved 2 years ago by relocating the MAS closer to the IC but I don't consider this to be a pulley problem by itself.

 

not sure if you mean s/c pulleys but i have underdrive pulleys on my c43c (evosport) and i love them...it lets the car rev alot quicker. i am 100% happy with them,

 

I would love to hear more opinions on pulley replacements for the four door C230K. I want to upgrade my fiancees power. We've decided to keep her car (Smartbuy) is almost up. Thanks if you chime in.

 

Fever, I would assume it would be the same kit as the SLK230. The newer 2002 C230K Sport Coupe also has the same engine but I think you still need the MAS sensor for yours. Look in the SLK forum and you may get you answer, or look in the C forum for the answer.

 

Evosport pulleys for my 199 E55. So far so good, no problems. I am in Las Vegas. If there to be any problems, I'll realize them in the summer time. However, so far so good.

 

Clownburner's question is about overdrive pulleys to raise the boost from the supercharger on M111 series four cylinder engines.

 

who are the 2 with the renntech pulley?