Alright...i have never got good hard evidence on what chip to get. JimF's PAD Power+Chip is $125, and promises 10%-15% more HP. This seems hard to believe...anyone got good hard evidence of this? Or had experience with this chip?

On the other hand...theres the renntech chip, pricy, but lets just say i could get one used from someone who no longer wants theirs for a pretty good price....renntech seems like they would make the better chip. But their HP increase is no where near the HP increase the PAD promises.

What do you guys think? I want a chip but i'm not just gonna jump in to it head first.

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Own:
2013 C300 4matic
2009 C300 4matic

Owned:
2001 E320 Sport
1992 500E
1989 300SEL