Magnaflow Warranty • Stainless Steel Systems: Limited Lifetime Warranty against Manufacturing Defects. • Black Finish Systems: 1 Year Warranty on Black Finish, Limited Lifetime Warranty against Manufacturing Defects. • Titanium Finish Systems: 1 Year Warranty on Titanium Finish, Limited Lifetime Warranty against Manufacturing Defects. • Carbon Fiber Systems: Limited Lifetime Warranty against Manufacturing Defects on Stainless Steel, No Warranty on Carbon Fiber. • Aluminized Systems: 1 Year Limited Warranty. • Stainless Steel Mufflers: Limited Lifetime Warranty against Manufacturing Defects. Source: (Magnaflow Website) Flowmaster Warranty • Lifetime Limited Warranty applies to Flowmaster stainless steel mufflers (excluding FlowFX series), all stainless steel exhaust system (including FlowFX series), stainless steel pipes, air intake kits, and oiled type filters (except cleaning kits), and other stainless steel exhaust accessories (except exhaust tips and racing products). • Three (3) Year Limited Warranty applies to Flowmaster aluminized steel mufflers, aluminized steel exhaust systems, aluminized steel pipes, exhaust tips, and other non-race exhaust accessories. • Two (2) Year Limited Warranty applies to Delta Force Dry air intake filter elements. • One (1) Year Limited Warranty applies to FlowFX series mufflers, Elite Series exhaust headers, and electronic components such as Delta Boost modules.