Overview:Flowtech Exhaust Products are the perfect combination of quality and value. We are proud to offer these axle-back exhaust systems for 2007-2018 Jeep Wrangler JK vehicles. These 2.5" systems are engineered to offer both premium fitment and maximum performance from your 3.8L/3.6L engine.Features: Direct bolt-on single in/dual out axle-back exhaust kit 2.5" diameter 409 stainless steel construction maximizing strength and durability 409 stainless steel, high-flow, chambered muffler offers throaty sound without the drone 4” polished 304 stainless steel, dual wall exhaust tips with embossed Flowtech logos add style to your ride Quality welds for strength, longevity and good looks Tube geometry designed for hassle-free installation Uses OEM mounting points for factory-like fitment Application: 2007-2017 Jeep Wrangler 2018 Jeep Wrangler JK Specs: Application 2007-2018 Jeep Wrangler JK 3.6/3.8L - 2/4 door Brand Flowtech Emission Code 5 Exhaust Series Flowtech Material 409 Stainless Steel Muffler Type Chambered Product Type Exhaust System Sound Level Aggressive / Moderate System Type Axle-back Tube Diameter 2.5" Tubing Diameter (in) 2.5 Warning California Proposition 65