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2004-2005 S4 Engine Mod & Exhaust Recommendations

TopgearMike Feb 8, 2014

  1. TopgearMike

    TopgearMike New Member

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    Anyone - What brand (mfg.)of ECU mod & complete exhaust systems & CAI & Suspension to you guys recommend. Cost is a slight factor but the old saying " You pay what you get for". I'm in the States but don't mind ordering from UK
     

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