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      04-30-2021, 09:37 AM   #1
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Piggyback tune questions.

Sorry fellas I know I'm always asking away, but who else am I going to bother?

Primary and secondary catless DP on order, my "nameless BMW tech guy" suggested a wired in piggyback tune (I was thinking about an 02 sensor Bung to kill CEL) to deal with the CEL, besides add a little more oomph, and won't kill warranty.

I'll wait until the DMEs unlocked and things have cooled down to get any flash stuff done.

So far I'm seeing JB4 and race chip are my only options.

Opinions?
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      04-30-2021, 09:43 AM   #2
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Power bump accurate at all?
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      04-30-2021, 09:53 AM   #3
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Quote:
Originally Posted by RAUDERRIPPER View Post
Power bump accurate at all?
Haven't dyno'd mine. Butt dyno says yes, but could also be placebo. Runs 11.75 at track with map 7 and full tank of 91 octane fuel. Soooo I want to say it works, but would have to put 93 in it and get 11.5s to know for sure. Either way, it's a good safe bet for only $700. Can't get a damn exhaust for this car without spending 6k+ lol
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      04-30-2021, 10:16 AM   #4
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Quote:
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Quote:
Originally Posted by RAUDERRIPPER View Post
Power bump accurate at all?
Haven't dyno'd mine. Butt dyno says yes, but could also be placebo. Runs 11.75 at track with map 7 and full tank of 91 octane fuel. Soooo I want to say it works, but would have to put 93 in it and get 11.5s to know for sure. Either way, it's a good safe bet for only $700. Can't get a damn exhaust for this car without spending 6k+ lol
The plan is to flash tune when it's less risky. If this corrects the CEL from my DP AND gives me a bump I see no negatives....
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