I had my ASP lightweight alloy pulley for a month and over 1,000 miles and it's great. Plenty of power on tap. I also did the ITG air filter and that adds a little compared to the pulley but still a good deal. The pulley is $350 + $19 for a new belt and the air filter was $52. Next will probably be a chip and maybe an intercooler if someone comes out with an affordable one.<br> <br> Is your car a 2002 or 2003? None of the performance mods will work with the 2003 as it's a complete new engine.
kleemann directly or at evosport.com<br> they make 2 kits - a steel ring or an alloy<br> <br> renntech at renntechmercedes.com<br> <br> people are starting to get them installed now so there will be more reviews later. i got the renntech and i love the extra power.<br> <br> there is a lot of research floating around and good luck.
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