Infiniti Qx56 Exhaust System

MAGNAFLOW STAINLESS STEEL CAT-BACK EXHAUST SYSTEM -- 2.25 In./3 in. Tubing O.D. Size, 4 in. Tip O.D. Size, Rear Side Exit Position, Single System, Includes 5 in. X 8 in. X 24 in. Muffler And Polished Stainless Steel Tip, Made Of 100% Tough And Durable Stainless Steel, Dyno Tested And Proven To Provide Performance Gains In Horsepower And Torque, Delivers Great Sound With A Smooth And Deep Tone, Built To Last, All Welded, Mandrel Bent, Complies With Most State And Federal Laws, Designed And Tested To Meet Legal Sound Level Limits, Easy To Install, With Magnaflow's Limited Lifetime Warranty

Fits the following 2007-2008 Infiniti QX56 submodels:

• 2007-2008: Base; 8 Cyl 5.6L; "Gas, FI, VK56DE, Naturally Aspirated"

MAGNAFLOW CAT-BACK EXHAUST SYSTEM, STAINLESS STEEL, POLISHED -- Complies with most state and federal laws; Designed and tested to meet legal sound level limits; Increases horsepower on an average range of 10 percent; 3 in. main piping diameter, 3 in. tail pipe diameter; Single rear side exit; Single inlet and outlet muffler configuration; Includes installation hardware, gaskets, 5 in. x 8 in. x 24 in. polished stainless steel muffler, and single 4 in. polished T-304 stainless steel tip with round shape, straight cut, and rolled edge design; Made of 100 percent tough and durable stainless steel; Dyno tested and proven to provide performance gains in horsepower and torque; Delivers great sound with a smooth and deep tone; Built to last, all welded, and mandrel-bent; Easy weld-on installation; With Magnaflow's limited lifetime warranty.

Fits the following 2004-2006 Infiniti QX56 submodels:

• 2004-2006: Base; 8 Cyl 5.6L; "Gas, FI, VK56DE, Naturally Aspirated"

GIBSON SWEPT SIDE EXHAUST, ALUMINIZED -- This Swept Side Exhaust System Is Made Of High Quality Heavy Duty Aluminized Mandrel-Bent Tubing To Maintain Constant Exhaust Flow For Outstanding Performance, Fully Welded Superflow TM Muffler For Better Volume Efficiency, 3.5 T-304 High Polished Stainless Steel Clampless Slash Tip, 3 Tailpipe, Zinc Plated 3/8 in. -1/2 in. Factory Style Hangers And Heavy Duty Clamps, Engineered And Dyno-Tested To Improve Acceleration, Maximum Hill Climbing, Towing And Passing Power, Produces Maximum Torque And 15-20 Horsepower Gains At Low-End With Deep Aggressive Tone, Exits Behind The Rear Tire Near Stock Location, Quieter In The Cab, Improves Fuel Economy And Efficiency, Heavy Duty Enough For Off-Road Use, Lifetime Limited Warranty, 50 State Emissions Legal

Fits the following 2004-2009 Infiniti QX56 submodels:

• 2004-2009: Base; 8 Cyl 5.6L;

GIBSON SWEPT SIDE CAT-BACK EXHAUST SYSTEM, 409L STAINLESS STEEL, NATURAL FINISH -- 50-state street legal; Gains maximum torque and horsepower up to 3000 RPM with a deep and aggressive tone; 2.5 in. main piping diameter, 3 in. tailpipe diameter; Exits behind rear tire; Single inlet and outlet muffler configuration; Includes fully welded Superflow TM muffler for better volume efficiency, Y-pipe, over axle tailpipe, stainless steel resonator, zinc plated 0.375-0.5 in. thick factory style hangers, heavy duty clamps, bolt kit for band clamp, and single 3.5 in. high polished T-304 stainless steel tip with round shape, angle cut, and non-rolled edge design; Features heavy duty 409L stainless steel mandrel-bent tubing to maintain constant exhaust flow for outstanding performance; Engineered and dyno-tested to improve acceleration, maximum hill climbing, and towing and passing power; Quieter in the cab; Improves fuel economy and efficiency; Heavy duty enough for off-road use; Flange connection to converter; Easy bolt-on installation; With Gibson's limited lifetime warranty.

Fits the following 2004-2009 Infiniti QX56 submodels:

• 2004-2009: Base; 8 Cyl 5.6L;