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Search within a riding style, select an optionBegin typing to search, when autocomplete results are available use up and down arrows to review and enter to select. Selecting an options will take you to a new page. Touch device users, explore by touch.
Free shipping on orders over $79 to Illinois
Orders over $79.00 will receive free shipping. This is a residential delivery service, deliveries Monday through Friday from 9:00am to 8:00pm.
MotoSport.com offers 1 4-Stroke Full Systems. A leader in our industry, we know you'll be satisfied with the 4-Stroke Full Systems you buy from us.
Our Pledge
We want to make your next ride, your best ride. Our 4-Stroke Full Systems ship for free with orders over $79.
If you need some assistance, we can help. Just give one of our Gearheads a call at 503-783-5645 and they can help you find the best 4-Stroke Full Systems for you.
How do I confirm a 4-stroke full system is right for my motorcycle?
Verify exact year, make, model and engine in the product fitment details—full systems are matched to specific bikes and may require tuning or minor modifications to deliver expected performance.
Which materials work best for different riding conditions?
Choose titanium for off‑road and weight‑sensitive use, stainless steel for all‑weather durability, carbon fiber for high‑performance sport use, chrome for cruiser aesthetics, and aluminum for budget builds; prioritize corrosion resistance in wet climates and heat resilience in hot or demanding terrain.
How do different full system configurations affect performance and sound?
Configuration influences torque, rev response and exhaust tone—torque‑focused layouts suit trails and cruisers while multi‑into‑one designs favor high‑rev horsepower for sport riding—keep in mind full systems provide larger gains but alter fueling and sound characteristics.
What should I expect for installation and ongoing maintenance?
Full systems are more involved than slip‑ons—check alignment, clearances and mounting hardware and consider professional installation; inspect joints, mounting points and corrosion‑prone areas regularly and follow heat‑shield and gasket care to maximize longevity.
How do emissions and noise regulations affect my choice?
Select systems that state compliance with applicable emissions and noise standards or offer removable silencers/baffles, since non‑compliant units can require additional tuning or accessories and may not be suitable for street use.