M4 Exhaust
Speedking MotoWerx is an authorized M4 Performance Exhaust dealer with over 200 slip-ons, full systems, quiet inserts, and heat shields in stock for Kawasaki, Suzuki, Yamaha, Honda, BMW, and KTM. Use the fitment finder above to see exactly what fits your bike, or call (970) 566-3258 with any fitment or sound questions. M4 systems are designed for closed-course use; check your local regulations before installing on a street-ridden motorcycle.
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Vendor:M4 Performance Exhaust
M4 Exhaust GP19 Black Slip On 2009 - 2026 Kawasaki ZX-6R KA6922-GP19
Slip-On with Black GP19 Canister Removes stock exhaust valve and muffler box, but retains stock catalytic converter. Stage 1 Q1 Installed Q3 Stage 2 Quiet Insert Sold Separate Stainless Steel Tubing NOTE: For US models only, does not come with O2 fitting for 2nd O2 sensor on...- $392.00
$413.00- $392.00
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Vendor:M4 Performance Exhaust
M4 Exhaust Carbon Fiber Street Slayer Slip On 2009 - 2026 Kawasaki ZX-6R KA6914
Carbon Fiber Street Slayer Slip-On Get this shorty carbon slip-on to give your bike a sweet look while improving performance. Removes stock exhaust valve and muffler box, but retains catalytic converter. Comes with a removable quiet insert. Stage 1 Q5 Installed Q4 Stage 2 Quiet Insert Sold...- $406.00
$428.00- $406.00
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Vendor:M4 Performance Exhaust
M4 Exhaust Full System Black GP19 with canister 2009 - 2026 Kawasaki ZX-6R KA6982-GP19
Full System with Black GP19 Canister GP19 style full system. Adds 6 horsepower over stock. Removes stock catalytic converter. Stage 1 Q1 Installed Q3 Stage 2 Quiet Insert Sold Separate Stainless Steel Tubing NOTE: For US models only, does not come with O2 fitting for 2nd O2...- $996.00
- $996.00
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Vendor:M4 Performance Exhaust
M4 Exhaust GP19 Black Slip On ZX10R 2021-2026 KA9942-GP19
Saves 10.9 lbs Over Stock Removes Exhaust Valve Eliminates CAT Comes with M18 O2 Bung Stock 95 dB @7,000 RPM M4 112 dB @7,000 RPM Stock Max HP 170.4 @11,800 RPM M4 Max HP 172.7 @11,800 RPM Comes with Q1 Quiet Insert *Does not meet...- $474.00
$499.00- $474.00
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Vendor:M4 Performance Exhaust
M4 Exhaust Full System with Carbon Fiber Canister for 2021 - 2026 Yamaha R7 YA6814
Typically ship within a few business days *Does not meet emission requirements for street or highway use. Large Diameter Dyno Tuned System for Ultimate Performance 304 Stainless Steel Tubing +7% Horsepower Over Stock System 7.7 lb Weight Savings vs Stock- $759.00
- $759.00
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Vendor:M4 Performance Exhaust
M4 Exhaust GP Black Slip on 2011-2026 Suzuki GSXR600/750 SU6112-GP
Slip-On Black GP Stage 1 and Stage 2 Quiet Inserts Sold Separate Optional Carbon Fiber Heat Shield Available but Sold Separate Note: This system fits both GSX-R600 and GSX-R750 models. Dyno chart shown is from the GSX-R600. *Does not meet emission requirements for street or highway use.- $284.00
- $284.00
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Vendor:M4 Performance Exhaust
M4 Exhaust Q3 Stage 2 Quiet Insert
Stage 2 Q3 quiet insert adds a second level of sound dampening.- $45.00
- $45.00
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Vendor:M4 Performance Exhaust
M4 Exhaust stainless steel full system with carbon fiber canister Ninja 650/Z650 2021-2025 KA6624
Saves 10.6 lbs Over Stock +3 Horsepower All Carbon Fiber Canister 304 Stainless Steel Tubing Typically ship within a few business days *Does not meet emission requirements for street or highway use.- $721.05
- $721.05
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Vendor:M4 Performance Exhaust
M4 Exhaust Street Slayer Carbon Fiber Slip On Kawasaki ZX10R 2021-2026 KA9964
Removes Stock Catalytic Converter Sweet Look, Great Sound and Better Performance Stage 1 Q9 Quiet Insert Installed Typically ship within a few business days *Does not meet emission requirements for street or highway use.- $497.80
- $497.80
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Vendor:M4 Performance Exhaust
M4 Exhaust Carbon Heat Sheild GSXR600/750 2011-2026 HG-GSXR600/750
Typically ship within a few business days Note: This shield can be used for both the GSX-R600 and 750 2011-2026. Compatible with the GP slip-on and Tech1 slip-on versions. *Does not meet emission requirements for street or highway use.- $107.35
- $107.35
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Vendor:M4 Performance Exhaust
M4 Exhaust Polished Slip On 2003-2005 Yamaha R6 YA6312
Slip-On with Polished Canister Stage 1 Q5 Quiet Insert Sold Separate Q4 Stage 2 Quiet Insert Sold Separate Note: This system fits both the 2003-05 R6 and 2006-10 YZF R6S *Does not meet emission requirements for street or highway use.- $299.00
- $299.00
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Vendor:M4 Performance Exhaust
M4 Exhaust All Black Full System RM1 Canister 2015 - 2026 FZ-07/MT-07/XSR700 YA6722
Typically ship within a few business days *Does not meet emission requirements for street or highway use. Saves 8.6lbs Over Stock 5% Increase In Power 304 Stainless Steel Tubing With High Temp Ceramic Coating- $806.00
$849.00- $806.00
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Vendor:M4 Performance Exhaust
M4 Exhaust Carbon Fiber Street Slayer Slip On 2006-2007 GSXR 600/750 SU6824
Typically ship within a few business days *Does not meet emission requirements for street or highway use. Removes Stock Catalytic Converter Sweet Look, Great Sound and Better Performance Stage 1 Q5 Quiet Insert Installed- $426.55
- $426.55
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Vendor:M4 Performance Exhaust
KA1012 M4 Exhaust All Black Retro-Drag Slip-On Kawasaki Eliminator 2024-2025
Typically ship within a few business days The all black Retro-Drag slip-on awakens the Eliminator and provides the look and sound it was destined for. Saves 6.3 lbs Over Stock Comes Pre-Installed with Q1 Quiet Insert *Does not meet emission requirements for street or highway use.- $379.05
- $379.05
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Vendor:M4 Performance Exhaust
M4 Exhaust Full System Street Slayer Carbon 2009 - 2026 Kawasaki ZX-6R KA6994
Full System with Carbon Street Slayer Canister This pipe is designed for absolute maximum performance. The street slayer mount provides the short look while still having a tolerable exhaust note. Removes stock catalytic converter. Stage 1 Q8 Quiet Insert Sold Separate Q6 Stage 2 Quiet Insert Sold...- $1,044.00
- $1,044.00
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Vendor:M4 Performance Exhaust
M4 Exhaust Q4 Stage 2 Quiet Insert
Stage 2 Q4 quiet insert adds a second level of sound dampening.- $56.00
- $56.00
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Vendor:M4 Performance Exhaust
M4 Exhaust Universal Catalytic Converter Eliminator 2021-2025 ZX10R CE-KAZX10R-21SS
Will Fit Up To The Stock Muffler or Most Aftermarket Slip-On’s That Do Not Remove CAT Stainless Steel Tubing Typically ship within a few business days *Does not meet emission requirements for street or highway use.- $190.00
- $190.00
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Vendor:M4 Performance Exhaust
M4 Exhaust X-96 Carbon Fiber Slip On Ninja 400/500/Z400 2018-2026 KA4014
X96 Carbon Fiber Canister Saves 5lbs over stock Retains stock catalytic converter Comes pre-installed with a stage 1 Q8 quiet insert Stock db is 87 @ 6,000 rpm / M4 db is 97 @ 6,000 rpm Increases Performance Typically ship within a few business days *Does...- $504.45
- $504.45
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Vendor:M4 Performance Exhaust
M4 Exhaust RM1 Black Slip On w/ black Cat. Eliminator 2015-2025 R1 YA9942-CE
Typically ship within a few business days Stainless Steel, Ceramic Coated Black Catalytic Converter Eliminator Stainless Steel, Ceramic Coated Black RM1 Canister Carbon Fiber End Cap Saves 12 lbs Compared to Stock Q7 Quiet Insert Available but Sold Separate Note: ECU re-flash required when removing...- $646.00
- $646.00
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Vendor:M4 Performance Exhaust
M4 Exhaust Full Titanium System MC36 Carbon Fiber 2011-2025 GSXR600/750 SU6124T
Typically ship within a few business days Compatible With Stock Passenger Foot Peg or Supplied Race Bracket Note: This system fits both GSX-R600 and 750 models. Dyno chart shown is from GSX-R600. Does not meet emission requirements for street or highway use. *Does not meet...- $1,756.55
- $1,756.55
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