Choose Make Honda Suzuki Choose Make First Choose Model First

The unique attributes of the Dr. D’s step system allow for a more efficient intake stroke. It does this by resisting the reflective exhaust pulse during the intake/exhaust overlap. In plain language, the carefully tuned steps in the system allow for a lower net cylinder pressure, which gives a crisper throttle response from bottom to top. The key advantage of the Step System is improved low end response with substantial gain in the mid and top ranges. Dyno tests show a 3.6 horsepower increase at peak.

The Dr. D Spark Arrestor System is designed for ATV riders who are looking for the same extraordinary performance characteristics of the Dr. D Race System, but also need to quickly adapt the system to meet USFS spark arrestor and/or noise level requirements.

Features:

• Meets all USFS requirements
• Complete system including a stainless steel head pipe and aluminum muffler
• Spark arrestor screen can be added or removed in only minutes via the removable end-cap

Click Here for Additional Exhaust Information