Thread: 2021 bmw m340
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      02-10-2021, 10:15 AM   #1
Gflores23
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Drives: 2018 BMW 540i / 2021 BMW M340i
Join Date: Feb 2019
Location: Riverside

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2021 bmw m340
So since the 2021 340 can not be bench flashed yet to tune it , is it safe to run a downpipe, charge pipe & cold air intake without stage 2 tune ?
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