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Hammerhead Performance Exhaust Kit for GY6

GY6 Performance Parts

If you're looking to take your go-kart or buggy to the next level, you're in the right place. From "mild" to "wild" we carry performance parts to fit most budgets and skill levels.   With our basic upgrades like roller weights and variators, you can fine-tune your engine's power delivery, providing a smoother and more responsive ride. Add add a high-flow UNI air filter kit so your engine can breathe easier, delivering more power and torque for better acceleration and top speed.

But that's not all - performance exhaust systems are also available for GY6 engines, allowing you to unlock even more horsepower and achieve a deep, throaty sound that will turn heads. Whether you're looking to upgrade your go-kart's top speed, acceleration, or overall performance, our performance parts are the way to go.

So why settle for stock performance when you can take your go-kart or buggy to the next level with high-quality performance parts? Whether you're a casual weekend warrior or a serious racer, GY6 performance parts will give you the competitive edge you need to get ahead of your riding buddies.
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Regular price $24.95
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This piston ring set fits the 58.5mm upgrade piston. These are included in the 155cc big bore kit.Note: This only fits if you've done the Big Bore Upgrade!
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Regular price $43.84
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This is the same piston found in our 155cc big bore kit.Note: This only fits if you've done the Big Bore Upgrade!
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Regular price $43.84
Sale price $43.84
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This is the same piston found in the 165cc big bore kit.Note: This only fits if you've done the Big Bore Upgrade!
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Regular price $43.84
Sale price $43.84
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Note: This only fits if you've done the Big Bore Upgrade!
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Regular price $43.84
Sale price $43.84
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This is the piston that comes in our 175cc big bore kit.Note: This only fits if you've done the Big Bore Upgrade!
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Regular price $19.50
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Fits our 60mm Piston.Note: This only fits if you've done the Big Bore Upgrade!
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Regular price $17.50
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These rings fit our 175cc big bore kit.
Regular price $22.95
Sale price $22.95
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Regular price $22.95
Sale price $22.95
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Sliding weights have better wear characteristics than normal rollers.  This is the 11g version.
Regular price $22.95
Sale price $22.95
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Sliding weights have better wear characteristics than normal rollers.  This is the 12g version.
Regular price $22.95
Sale price $22.95
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Sliding weights have better wear characteristics than normal rollers.  This is the 13g version.
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Regular price $54.99
Sale price $54.99
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This cylinder is from our 155cc big bore kit.
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Regular price $129.99
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Fits our 155cc big bore kit. Can be used with or without the big bore.
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Regular price $5.52
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Fits our 155cc big bore kit.
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Regular price $5.62
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Fits our 175cc big bore kit.
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Regular price $89.95
Sale price $89.95
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Kit includes: 2x STAGE 2 Rear Shock AbsorbersPerfect size for your Yerf Dog GX150. No guesswork involved. These bolt in with NO modification whatsoever, Plug-n-Play. Shocks may come with a red spri...