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zeroboot · 06-05-2014, 08:51 AM

I have the velos tune right now but not catless downpipes. How much of a power difference do you feel with these and the retune vs just velos S2 tune?

06-05-2014, 08:51 AM	#10
zeroboot Private 8 Rep 94 Posts Drives: 2011 X5M - sometimes Join Date: Jan 2014 Location: edmonton,ab iTrader: (1)	I have the velos tune right now but not catless downpipes. How much of a power difference do you feel with these and the retune vs just velos S2 tune?
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