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120d · 10-23-2018, 09:35 AM

Hello I am thinking of purchasing a Steinbauer box for my f20 184 . I am looking to see if anyone has any experience with this company , and if the claim of a 20% increase is actually true. Thanks in advance.

10-23-2018, 09:35 AM	#1
120d Registered 0 Rep 3 Posts Drives: Bmw 120d msport Join Date: Mar 2018 Location: Lancs iTrader: (0)	Steinbauer tuning box Hello I am thinking of purchasing a Steinbauer box for my f20 184 . I am looking to see if anyone has any experience with this company , and if the claim of a 20% increase is actually true. Thanks in advance.
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