Billy Boat Performance Exhaust has had a deep commitment to build quality products. With over 3 generation of fabrication and racing experience going into the development of every part B&B makes along with use only the finest T304 stainless steel materials it is easy to see why B&B has been an industry leader for over 20 years. B&B designs every system for increased performance, a distinctive tone that they have spent years perfecting and an appearance that will set your vehicle apart. Chevy Silverado/GMC Sierra & Silverado SS Exhaust System Billy Boat Performance Exhaust has them available as either a Dual-back (split rear system) and featuring 4.5" Elliptical tips or as a True-dual (side exit system) featuring 3.5" Round tips. Both systems feature fully polished mufflers and tips, high quality craftsmanship and 100% T-304 stainless steel construction. Crafted in-house using B&B's proprietary muffler design and mandrel bending resulted in the increased horsepower and torque as well as improved flow and fuel efficiency. In addition to improving the performance of the SS and Denali pickup, the B&B system also provides a deeper more aggressive tone without annoying interior resonation. Billy Boat History Since 1989 Billy Boat Performance Exhaust has designed, tested, and manufactured the highest quality stainless steel exhaust systems available. Originally specializing in Porsche 911 performance exhaust systems, oil coolers, and intercoolers, B&B introduced the Tri-Flo line named after its unique 3-into-1 Porsche header. Today in its state-of-the-art facility, Billy Boat continues to develop the highest performing exhaust systems for most sports cars, trucks, and SUVs. With an in-house dyno facility and R&D staff, we stay on top of current vehicle trends and deliver products that fit and perform to an unsurpassed level of standards. Each Billy Boat Performance Exhaust system incorporates 3-generations of fabrication skill and racing talent. Every system starts with T-304 stainless steel, known throughout the industry as the highest quality material practical for after-cat exhaust applications. All exhaust tubing is mandrel bent on sophisticated CNC machinery for a precise fit and uninterrupted exhaust flow. What's more, the use of T-304 stainless steel flanges offers high strength and complete resistance to harsh elements. All hangers, resonators, and tips are T-304 stainless steel as well. Billy Boat Performance Exhaust mufflers are crafted in-house with years of racing and street development invested into the design. Each muffler is tuned to match its application for the best possible performance gain and sound quality combination. For strength, the muffler end-plates are radiused at the inlet and outlet preventing premature cracking. Additionally, reinforcing gussets are used when necessary. Depending on the application, you can choose from 3" round tips with a rolled edge, 4.5" oval rolled edge tips, 5.25" oval rolled edge tips or DTM style tips for European applications. Performance It's what we do and it is who we are. With over 25 years of experience in the racing and exhaust industry, Billy Boat has learned a few things about performance. Whether it is leading the field as the fastest qualifier at the 1998 Indy 500 or leading a team of highly skilled fabricators, performance is measured by more than just horsepower. Performance is delivering beyond expectations. Sound Would you rather listen to the adrenaline pumping sound of your exhaust than the radio? Does the slightest flick of the throttle make you yearn for open road? With a pleasant tone while cruising down the freeway, or a deep throaty roar when you plant your right foot. Billy Boat Performance Exhaust has spent the last ten years perfecting the sound of their exhaust systems.