Motorcycle Engine Upgrades

Unlock the true potential of your ride with our Motorcycle Engine Upgrade collection—built for riders who demand more power, sharper throttle response, and a deeper connection to their machine. Whether you’re carving through city streets, chasing the horizon on a long weekend, or exploring off the beaten path, upgrading your engine transforms every ride into an experience that’s uniquely yours.

At British Customs, we know that every rider’s journey is personal. That’s why we design and manufacture original engine upgrade parts that deliver real-world performance and reliability. In addition to developing our own products, we carefully select parts from brands we respect for their quality, innovation, and alignment with rider needs—like Barnett Clutch & Tool, Biltwell Inc, Joker Machine, K&L Supply, Keihin, Pingle Enterprises, NGK Spark Plugs, and Nology Engineering.

From bolt-on air and intake kits that boost airflow, to high-performance spark plugs and coils for a cleaner burn, to clutch and fuel system upgrades that put you in total control—these upgrades are engineered for easy installation and maximum impact. Most parts are rider-friendly, so you can wrench in your own garage and feel the difference on your next ride.

Engine upgrades aren’t just about horsepower—they’re about freedom, confidence, and making your bike an extension of yourself. Whether you ride a Triumph, Royal Enfield, or Ducati Scrambler, our curated selection empowers you to personalize your engine’s character and performance, so every twist of the throttle feels just right.