Chevy Silverado 3500 Duramax Engine 2003, SLM Series™ Off-Road Downpipe-Back Diesel Exhaust System by MBRP®, MODERATE SOUND. Without Muffler. MBRP’s SLM Series is the ultimate in free-flowing exhaust systems, because they replace both the catalytic converter and any muffler in the stock system. MBRP’s SLM Series exhausts are made with tough T409 stainless steel, which will outlast your truck. T409 won’t take a mirror polish like T304, in fact it will show some minor surface corrosion after exposure to the elements. But rust through? Never. It’s the perfect metal for a working truck’s exhaust system; if you need a little bling just clamp a polished muffler tip on. Enjoy the improved performance and mileage afforded by these low-restriction systems for as long as you own your truck.
Don’t let a restrictive factory exhaust system hold your truck back. Extra backpressure forces your engine to work harder to push exhaust out of the engine. And the freer-flowing your engine is, the more fresh air can be crammed into the cylinder on the intake stroke, which makes more power. That’s why you can see both better economy and more performance from a new exhaust system. MBRP engineers and builds their systems so they fit right the first time. How many exhaust systems have you installed that needed a little massaging with a hammer to fit? Not MBRP!
Fifteen years ago, MBRP® started in the exhaust business by introducing the B&B Eliminator, a silencer that quickly became the best-selling snow machine muffler of all time. Exhaust system technology being as universal as it is, they soon branched off into cars, Jeeps, and diesel trucks, with amazing success. One of their secrets has been the practice of making as many universal-fit kits as possible. A couple of extra parts in the box means that a single kit might fit a number of different wheelbase pickup trucks, for instance. Reducing complexity in ordering is better for them, better for their distributors, and a great benefit for their customers, who are more likely to be able to find a kit that fits their vehicle on hand. In addition, they go to great lengths to make sure their systems fit properly every time. Careful attention to design and fabrication delivers a system that doesn’t need customization with a hammer to fit properly before the car or truck comes off the lift.