Harley Davidson Exhaust Laws

All testing is done in-house with Harley Tuners at the DD Exhaust facilities.

Harley davidson exhaust laws. When purchasing any exhaust air cleaner components fuel injection tuning modules or engine parts pistons cams valves etc check to see if it is 50 state compliant. Harley-Davidson has to comply with this law and every bike coming out of an H-D factory is not louder than 80db. Expert Gear Advice From Riders.

Odds are it is stamped with a sticker like the ones seen here. To get the most radical change in your Harley Davidson changing to a high-performance aftermarket exhaust system is the preferred way to get the sound you want. To reduce sound and noise emissions produced by their line of motorcycles the Active Intake Control AIC system is an electronically controlled servo that opens and closes a valve in the intake chamber according to preset engine speeds.

If it is according to Harley-Davidson installation of these parts will void your warranty. You really have to be pissing someone off in order for this law to be enforced. Noise Emission Warranty Harley-Davidson warrants that these mufflers at the time of sale meet all applicable United States EPA.

By Chris Gilliland Developed by Harley-Davidson Motor Co. Federal Noise and Emissions standards. Over the years the intake and exhaust systems on Harley big twins have become restricted to meet EPA noise and smog law requirements.

Will putting an aftermarket exhaust system on my Harley Davidson void the factory warrantee Apparently the answer is yes. And for that reason they developed a special exhaust system for Europe and I think especially for Germany. Is a Harley with an aftermarket or modified exhaust system still a Harley.

Mufflers No person shall modify the exhaust system in such a manner that the noise emitted is above that emitted by the vehicle as originally manufactured. This electronic control unit is the brain of the product and contains software that reads CANBUS signals coming from the motorcycles ECU. Hyde red to the exhaust which fits perfectly with the original details.