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Thanks for doing this btw!
Question: I have an ESS tune (came with the VT2-500) and am currently on 100% stock USDM exhaust. I will be installing euro headers soon and am hoping someone with a similar setup will chime in. Do I need to worry about getting a CEL even though it has an aftermarket tune? My intuition tells me that yes, I will still throw a CEL and have to request a re-tune. I'll most likely install *just* the headers for now.
Anyone know if the Evolve-R cable for E46 M3 works for Z4M?
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