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I'm leaning heavily towards getting the Helix myself. All the logs I've seen posted by people on this board suggest it has superior CAT (charge air temps) control. AMS is a close second.
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'07 335i E90 - PTF ProTUNED by Dzenno - COBB FMIC - AFE DCI - AA DPs - HFS4 Meth
'09 M3 - Stock
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