The 250X and 300EX have gotten a great deal of attention from Curtis Sparks over the years and that has allowed us to offer you an awesome exhaust system for your quad.

FEATURES:

• Made in the USA!
• Oversized stepped header
• Reverse megaphone for huge power gains
• Lightweight aluminum silencer
• Huge power and torque increase over stock
• Utilizes new Sparks Modular end cap design
• Modular end cap allows for easy installation of optional SA screens and/or quiet inserts
• Muffler is now super-easy to completely rebuild
• Weighs under 7 lbs
• Awesome four-stroke performance sound
• Ceramic coating is added to this system to enhance the looks of the system. It looks like polished aluminum
• The ceramic coating adds a small amount of additional heat retention
• Quick and easy to install
• To guarantee the highest quality exhaust, each one is built right here at Sparks Racing
• Utilizes stock mounts and hardware
• Chrome mounting flange

The X4 system is generally best suited for engines that are completely stock or go up to 325cc.