Give your diesel truck the right kind of aggressive look using this AR-15 exhaust tip from Sinister Diesel! The AR-15 has been trusted by the US military and police in all kinds of environments, making it a favorite of firearms enthusiasts. Now you can show your support for this legendary gun while also making your truck stand out from the crowd., Each tip features a 4-inch inlet and a 6-inch outlet and will work with most diesel truck exhaust systems. The stainless steel comes powder coated for improved durability, plus a dual wall for shedding heat efficiently. Install the Sinister Diesel AR-15 exhaust tip on your truck with basic hand tools in a matter of minutes., U.S. Patent Pending, Features and Benefits:Construction - Stainless Steel, Product Design - CNC precision machined rails and ring