Harley Davidson Exhaust Laws

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.

Harley davidson exhaust laws. Noise Emission Warranty Harley-Davidson warrants that these mufflers at the time of sale meet all applicable United States EPA. Each Harley exhaust is available in chrome or black is equipped with heat shields exhaust gaskets bolt kits and baffles where applicable. Over the years the intake and exhaust systems on Harley big twins have become restricted to meet EPA noise and smog law requirements.

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. Expert Gear Advice From Riders. Stock Harley Davidson and other motorcycle pipes have catalytic converters in them because of federal manufacturing emission laws.

Harley-Davidson has to comply with this law and every bike coming out of an H-D factory is not louder than 80db. This electronic control unit is the brain of the product and contains software that reads CANBUS signals coming from the motorcycles ECU. Fortunately the aftermarket is booming with replacement exhaust.

Aftermarket exhaust will bring better performance more power and better sound to your Harley Davidson. I used a decibel reader on my iPhone and showed the CHP inspector that my Thunders Headers were under the 97 decibels that the modified exhaust law required. No person shall operate a vehicle with an exhaust system so modified.

And for that reason they developed a special exhaust system for Europe and I think especially for Germany. Hyde Adapter Kit it is possible to add the typical Dr. The stock exhausts have a cable pull that opens and closes flaps and so its quiet when you ride and louder when you stop.

Those ultra-noisy Harleys you hear exist because their owners deliberately increased their sound level not because Harley-Davidson made them like that. DS Harley Davidson a dealer in Phoenix Oregon has its own blog and recently they addressed a popular question. Developed by Harley-Davidson Motor Co.