Honda Civic Hatchback 1988 1991 Stainless Steel Catback Exhaust System 1991 Honda Civic Si Hatchback VIN Number Search AutoDetective Honda Civic Hatchback 1989 88 91 Honda Civic Hatchback 88 91 Honda Civic Hatchback. ELEGANCE REDEFINED The Revel Medallion Street Plus is meticulously handcrafted to the highest standards and testing under 95db sound levels (under load). It is a competitively priced solution for an OEM replacement or a step up into high quality exhaust systems. FULLY HAND TIG WELDED The Street Plus exhaust system is fully hand TIG welded for clean, high quality welds that will hold up to the various road elements. SINGLE WALL ROLLED TIPS The single wall rolled tips show off a more elegant style while improving the deep tone of the exhaust. The rolled muffler canister is clean and simple for a pleasant presentation. MANDREL BENT PIPING The exhaust system features mandrel bent piping to maximize the exhaust flow. Also, laser cut flanges are used to securely connect the individual pieces together and prevent exhaust leaks. ADVANCED MUFFLER PACKING The exhaust packing material offers superior flow characteristics while offering a tasteful deep tone and great sound suppression. FULL SUS201 STAINLESS STEEL The Revel Medallion Street Plus exhaust system utilizes full SUS201 stainless steel for durability and high quality finish. Pipe Diameter: 60 Tip Diameter: 100