817390 The American Thunder system is for the person who is looking for a complete crossmember-back dual exhaust system with a deep powerful sound. The system is constructed from 2.50-inch mandrel-bent stainless steel tubing and includes an H-pipe to balance the exhaust pulses and to eliminate back-rap on deceleration. The large cased Super 40 Series performance mufflers generally deliver a moderate interior tone with a deep powerful exterior sound which is suited for enthusiasts who want their performance to be heard. The mandrel-bent tailpipes exit straight out the back under the rear bumper for a strong muscular appearance and allows you to select your own style of tips. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation and is covered by our Lifetime Limited Warranty. . Features: H-pipe Crossover for Maximum Power and Deep Tone Super 40 Series Mufflers for Deep Powerful Sound Mandrel-bent 16-gauge Stainless Steel Tubing Includes Hangers and Hardware for Installation Moderate to Aggressive Exterior Exhaust Tone Crossmember-back True Dual Exhaust System Does Not Include Header Reducers or Downpipes for Factory Manifolds Lifetime Limited Warranty About Flowmaster Flowmaster® is a household name, and for good reason. They've built legendary exhaust systems and mufflers for decades, and now offer performance air intakes, catalytic converters, and headers to give your hot rod performance to match the iconic Flowmaster sound. SPECS 2WD/4WD 2WD Automotive Item Grade High Performance Brand Flowmaster Emission Code 5 Exhaust Pipe Wall Maximum Gauge 16 Exhaust Series American Thunder Exit Position Dual Out Rear Heat Shield No Inlet Diameter (in) 2.5 Material 409 Stainless Steel Mount Type Uses New Hangers (Included) Muffler Quantity 2 Muffler Series Super 40 Series Outlet Diameter (in) 2.5 Product Type Exhaust System Single Dual Dual Sound Level Aggressive / Moderate System Type Crossmember-back Tip Diameter (in) 2.5 Tip Shape Round Tubing Diameter (in) 2.5 UPC 700042027385 California Proposition 65 Chemical Name Chromium (hexavalent compounds) Nickel (Metallic) California Proposition 65 Required Yes Part Number 817390 EMISSIONS 5 This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations. TECH RESOURCES Instructions for Part# 817390 Warranty for Part# 817390 Does Not include header reducer cones or downpipes for factor manifolds.