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so id like some more power on my 335i without voiding the warrenty.
seen racechip mentioned a few times as you can just unplug them.
soes anyone use one? is it worth the money?
any other alternatives
cars a 51k 335 N54 2008
https://www.racechip.co.uk/shop/bmw/3-series-e90-93-2004-to-2011/335i-2979ccm-306hp-225kw-400nm.html
Last edited by jhandy2; 02-10-2018 at 09:11 AM..
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