Exhaust & Mufflers

M4 Yamaha R1 2015–2026 Black RM1 Slip-On The M4 Black RM1 Slip-On for the Yamaha R1 delivers a sleek, aggressive look while enhancing your bike’s sound and style. Designed to mount directly to the stock catalytic converter, this system...

M4 Honda CBR1000RR 2017–2019 Street Slayer Slip-On (Carbon Fiber) The M4 Street Slayer Slip-On for the Honda CBR1000RR delivers a sleek, aggressive look with a deeper, richer exhaust tone. Designed to enhance performance without excessive noise,...

M4 Yamaha R1 2009–2014 Undertail Slip-Ons (Carbon Fiber) The M4 Undertail Slip-Ons for the Yamaha R1 deliver a clean, aggressive look while enhancing sound and performance. Designed to mount in the factory undertail position, this system retains...

M4 Yamaha R6 2006–2020 Muffler Box Eliminator with Street Slayer Canister (Carbon Fiber) The M4 Muffler Box Eliminator with Street Slayer canister for the Yamaha R6 is designed for riders who want maximum performance, weight reduction, and an...

M4 Honda CBR1000RR 2017–2019 Black GP Slip-On The M4 Black GP Slip-On for the Honda CBR1000RR delivers an aggressive sound and compact race-inspired styling. Designed as a lightweight upgrade, this system enhances the bike’s exhaust tone...

M4 Yamaha R1 2009–2014 CAT Eliminator Slip-On (Carbon Fiber) The M4 CAT Eliminator Slip-On for the Yamaha R1 is designed for riders looking to maximize performance and sound. By eliminating the catalytic converter, this system delivers a more...

M4 Yamaha R6 2006–2020 Street Slayer Slip-On (Carbon Fiber) The M4 Street Slayer Slip-On for the Yamaha R6 delivers an aggressive sound and sleek styling while utilizing the stock muffler box for easy installation. Designed for riders who want a...

M4 Honda Rebel 300/500 2017-2024 All Black Retro-Drag Slip-On The M4 All Black Retro-Drag Slip-On for the Honda Rebel 300 and 500 delivers a classic drag-style look with a deeper, more aggressive exhaust tone. Designed to enhance both performance and...

M4 Yamaha R1 2009–2014 Undertail Slip-Ons (Titanium) The M4 Undertail Slip-Ons for the Yamaha R1 deliver a clean, aggressive look while enhancing sound and performance. Designed to mount in the factory undertail position, this system retains the...

M4 BMW S1000RR 2020-2026 Tech1 Slip-On The M4 Tech1 Slip-On for the 2020–2026 BMW S1000RR features a premium Tech1-style carbon fiber canister that delivers a sleek race-inspired look along with improved exhaust tone and performance. Designed to...

M4 Yamaha R6 2006–2020 Full Titanium System (Carbon Fiber X96 Canister) The M4 Full Titanium System with X96 carbon fiber canister for the Yamaha R6 is engineered for riders seeking maximum performance, extreme weight reduction, and a race-proven...

M4 Yamaha R1 2009–2014 Undertail CAT Eliminator Slip-Ons (Titanium) The M4 Undertail CAT Eliminator Slip-Ons for the Yamaha R1 are built for riders seeking maximum performance and an aggressive undertail look. By eliminating the catalytic...

M4 BMW S1000RR 2020-2026 GP19 Slip-On The M4 GP19 Slip-On for the 2020–2026 BMW S1000RR delivers aggressive styling and improved exhaust performance while retaining the stock catalytic converter. Featuring a compact GP-style design with a GP19 end...

M4 Yamaha R6 2006–2020 Full System (Carbon Fiber X96 Canister) The M4 Full System with X96 carbon fiber canister for the Yamaha R6 is engineered for maximum performance, weight reduction, and race-inspired sound. Featuring advanced crossover...

M4 Yamaha R1 2009-2014 CAT Eliminator Catalytic Converter Eliminator for the 2009–2014 Yamaha R1. Designed to fit stock mufflers and most aftermarket mufflers. Removing the catalytic converter increases exhaust flow, producing additional power...

M4 BMW S1000RR Universal Header Kit The M4 Universal Header Kit for the BMW S1000RR is a high-performance 304 stainless steel racing header assembly designed to significantly improve exhaust flow and reduce weight. This header kit fits the stock...

M4 Kawasaki ZX-10R 2016–2026 Full System (Stainless Steel with Tech1 Carbon Fiber Canister) The M4 Full System for the Kawasaki ZX-10R (2016–2026) features durable 304 stainless steel tubing paired with a premium Tech1 carbon fiber canister...

M4 Kawasaki ZX-10R 2016–2026 Full Titanium System (Tech1 Carbon Fiber Canister) The M4 Full Titanium System for the Kawasaki ZX-10R (2016–2026) with Tech1 carbon fiber canister is engineered for maximum performance, weight reduction, and...

M4 Kawasaki ZX-14R 2012–2026 Dual Black Retro-Drag Slip-Ons The M4 Dual Black Retro-Drag Slip-Ons for the Kawasaki ZX-14R deliver an aggressive twin-exhaust look with a bold, deep exhaust tone. Featuring dual satin black GP-style canisters, this...

M4 Kawasaki ZX-14R 2012–2026 Full System (Black GP Canister) The M4 Full System with Black GP canister for the Kawasaki ZX-14R delivers a dramatic upgrade in both performance and styling. Designed to replace the bulky stock system, this setup...

M4 Kawasaki ZX-10R 2016–2020 Black GP19 Slip-On The M4 Black GP19 Slip-On for the Kawasaki ZX-10R (2016–2020) delivers aggressive styling, weight reduction, and increased performance in a compact, race-inspired design. Featuring a sleek...

M4 Kawasaki ZX-4RR 2023–2026 Full System (Street Slayer X96 Carbon Fiber Canister) The M4 Full System with Street Slayer X96 carbon fiber canister for the Kawasaki ZX-4RR delivers aggressive styling, maximum performance, and a bold exhaust note...

M4 Kawasaki ZX-10R 2016–2020 Full System (Stainless Steel with Black GP19 Canister) The M4 Full System for the Kawasaki ZX-10R (2016–2020) features durable 304 stainless steel tubing paired with a sleek black GP19 canister for a bold,...

M4 Kawasaki ZX-4RR 2023–2026 Full System (X96 Carbon Fiber Canister) The M4 Full System with X96 carbon fiber canister for the Kawasaki ZX-4RR is engineered to deliver maximum performance, weight reduction, and aggressive race-inspired sound...