Flowmaster U-Fit Dual Exhaust KitLooking for a great way to help create that custom exhaust system, but want the durability of Aluminized steel as well? Flowmaster's U Fit Dual kit is a universal package that contains enough components to fabricate a complete mandrel bent dual exhaust system on nearly any street rod, muscle car or pickup. The slip fit kit contains twelve pieces of 2. 50 inch diameter tubing in carefully selected bend configurations and four additional 2. 00 inch