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06-21-2011, 02:37 AM | #1 |
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n55 Catless downpipe buying advice please
Hi All - newbie here
135i Coupe N55 - procede done by Adrian. Looking to get Advan performance to fit a Catless downpipe and then dyno and retune. I am overwhelmed with all the great info on the site Any suggestions? Brand to buy or where to buy from in USA? do they fit RHD cars (is that a stupid question?) Will it throw any constant errors? Is it worth doing? All advise and opinons are appreciated. Thanks for your time |
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