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Fuel-It! · 07-31-2019, 01:21 PM

They all do the same thing, sort of a waste of money in my opinion, since it isn't really adding any performance, but some customers swear by them. If you're going to get one at least get the cheapest one.

07-31-2019, 01:21 PM	#9
Fuel-It! Banned 550 Rep 949 Posts Drives: M4, M5, M2C, X4M, 440i, etc... Join Date: Mar 2019 Location: Phoenix AZ iTrader: (0)	They all do the same thing, sort of a waste of money in my opinion, since it isn't really adding any performance, but some customers swear by them. If you're going to get one at least get the cheapest one.
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