
Shop heavy-duty exhaust headers, mufflers, and replacement exhaust components for select DuroMax XP16HPE 420cc and XP18HPE 457cc engine applications.
AR-EXHAUST manufactures high-quality exhaust headers in Florida, USA. Our exhaust pipes are professionally TIG welded and available in multiple configurations for generators, go-karts, utility equipment, and custom engine installations.
Explore exhaust headers, stainless steel mufflers, threaded NPT connections, and different exhaust outlet configurations for compatible DuroMax engines.
Selected exhaust designs may also be suitable for installations with limited clearance, depending on the engine configuration and available space.
Important Fitment Information:
DuroMax engines may have different exhaust port angles, mounting patterns, and cylinder head configurations. Some versions feature a slanted exhaust port, which can affect the installed angle and position of the exhaust.
Not all DuroMax XP16HPE and XP18HPE engines use identical exhaust mounting configurations.
Before ordering, verify the exact engine model, exhaust port angle, mounting-hole spacing, and clearance requirements. Review the compatibility information, photographs, and measurements provided in each individual product listing.
Engine displacement alone does not guarantee proper fitment.
β Trusted by Small Engine Enthusiasts Nationwide
πΊπΈ Proudly Fabricated in Florida, USA
At AR-EXHAUST, every exhaust system is fabricated with durability, fitment, and performance in mind. We take pride in building quality products right here in the USA and providing the same level of service we would expect ourselves.
βββββ "The person who made this thing is an ARTIST! Worth every penny."
βββββ "Welds are excellent, fit perfectly, and even came with extra hardware."
βββββ "Awesome exhaust, couldn't be happier. Keep up the great work!"
βββββ "Amazing shipping speed. Great product and outstanding seller."
βββββ "100x better quality than expected. Strong construction and professional workmanship."
βββββ "Professional welding, excellent fitment, and premium quality materials."
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AR-EXHAUST | Precision Built Exhaust Systems
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βββββ Worth Every Penny!
"In a world where most things are made poorly, this item far exceeded my expectations. I was shocked by the quality. The pipe is heavy gauge, all the welds are correct, the cut edges are smoothed and finished properly, and it fit perfectly. The craftsmanship and attention to detail are outstanding. I highly recommend this item."
Verified Purchase
βββββ Pure Awesomeness!
"Bought and installed this ceramic coated header on a Predator 212cc Hemi and it made a world of difference. The performance exceeded my expectations and the sound is incredible. The fit and finish are second to none. I would not hesitate to recommend this header to anyone looking to upgrade their engine."
Verified Purchase
βββββ Works, Fits, and Sounds Great!
"This exhaust solved the clearance issue I was having and completely changed the sound of my go-kart. The fit was excellent, the construction was solid, and everything installed exactly as expected. A great product and well worth the investment."
Verified Purchase