Looking for a great way to help create that custom exhaust system, but want the durability of 409S stainless 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 in. diameter tubing in carefully selected bend configurations and four additional 2.00 in. diameter components for a crossover pipe fabrication so you can create a custom tailored system for your demanding vehicle project. Constructed from durable 409S stainless steel, it delivers the type of durability builders have longed for.