BMW Performance Exhaust

MAGNAFLOW STAINLESS STEEL CAT-BACK EXHAUST SYSTEM -- 2.25 in. Tubing O.D. Size, 3 in. Tip O.D. Size, Rear Exit Position, Single System, Includes 5 in. X 8 in. X 18 in. Muffler, 4 in. X 9 in. X 11 in. Resonator, And Dual Polished Stainless Steel Tips, 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

MAGNAFLOW STAINLESS STEEL CAT-BACK EXHAUST SYSTEM -- 2.25 in. Tubing O.D. Size, 3 in. Tip O.D. Size, Rear Exit Position, Single System, Includes 5 in. X 8 in. X 18 in. Muffler, 4 in. X 9 in. X 11 in. Resonator, And Dual Polished Stainless Steel Tips, 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

BORLA CAT-BACK EXHAUST SYSTEM, T-304 STAINLESS STEEL, NATURAL FINISH -- 50-state legal, C.A.R.B. certified; Increases power by 7 to 15 percent; 2.5 in. main piping diameter, 2.5 in. tailpipe diameter; Split rear exit; Two mufflers with single inlet and dual outlet configuration each; Includes Accuseal clamps, aluminized steel mufflers, and quad 3.14 in. x 5 in. polished stainless steel tips with round shape, angle cut, and rolled edge design; Made from aircraft-quality, 100 percent T-304 austenitic, and sound-absorbing mandrel-bent stainless steel that maintains low decibels and protects the vehicle against burnout; Dyno-proven to yield an increase in flow and power while providing better fuel economy; Insulated to reduce shell temperature for a cooler driver's compartment; Features a patented uninterrupted-flow design and multi-core technology; With longer spike for scavenging to generate maximum power; Easy bolt-on installation; With Borla's million-mile warranty.

BORLA CAT-BACK EXHAUST SYSTEM -- 1.75 in. Inlet Diameter, 2.5 in. Outlet Diameter, 3 in. X 4.5 in. Dual Round Rolled Angled-Cut Phantom Tip, Split Rear Exit, Made From Aircraft-Quality, 100% T-304 Austenitic And Sound-Absorbing Mandrel-Bent Stainless Steel That Maintains Low Decibels And Protects Against Burnout, Dyno-Proven To Yield An Increase Of 7-15% In Horsepower While Providing Better Fuel Economy, Insulated To Reduce Shell Temperature For A Cooler Driver's Compartment, Increases Flow And Power, Features A Patented Uninterrupted-Flow Design And Multi-Core Technology, With Longer Spike For Scavenging To Generate Maximum Power, 50-State Emission Legal, With Borla's Million-Mile Warranty

BORLA CAT-BACK EXHAUST SYSTEM -- 2 in. Inlet And Outlet Diameter, 3.19 in. X 4.75 in. Dual Round Rolled Angled-Cut Tip, Rear Exit, Made From Aircraft-Quality, 100% T-304 Austenitic And Sound-Absorbing Mandrel-Bent Stainless Steel That Maintains Low Decibels And Protects Against Burnout, Dyno-Proven To Yield An Increase Of 7-15% In Horsepower While Providing Better Fuel Economy, Insulated To Reduce Shell Temperature For A Cooler Driver's Compartment, Increases Flow And Power, Features A Patented Uninterrupted-Flow Design And Multi-Core Technology, With Longer Spike For Scavenging To Generate Maximum Power, 50-State Emission Legal, With Borla's Million-Mile Warranty