Speedtuning USA
12-25-2004, 01:20 PM
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01 E55 AMG
Yes, do a forum search and you'll find ECU tuner info including Speedtuning. Someone on here with an SL55 has the Speedtuning ECU and he's happy with it. I put a Powerchip in my '01 and I can feel a seat of the pants difference, haven't bothered to put it a a dyno though. I went with Powerchip only because they seem to be more established than Speedtuning and I paid an extra $800 for my peace of mind. If I had a w211 I'd probably choose Kleemann only because they're Stage 2 kit appeals to me.
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