05-30-2019, 11:15 AM | #1 |
Second Lieutenant
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Racechip GTS Piggyback Tune 228i
Racechip GTS piggyback tune for N20 engines, used for 6 months before wife traded in her car. Easy to install and uninstall. Never had it dyno'd but there was a noticeable change in acceleration. I paid $600 new.
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