When they leave the factory, today's motorcycles are pretty stifled.

1. Vance & Hines Exhaust
When they leave the factory, today's motorcycles are pretty stifled. Harley-Davidsons, in particular,
have plenty of room for extra power and torque gains simply by installing a freer breathing exhaust,
but replacing the standard system often means discarding the catalytic converter as well. In an
instant, your bike's emissions levels have risen above the limits set by the California Air Resources
Board (CARB in California), and you could face significant fines.
However, California is not the only state with such stringent emission standards. Other states are
looking to follow California's lead in reducing the harmful effects of exhaust gases as much as
possible, so Vance & Hines has developed a complete exhaust system in the CTR Performance Kit.
Hurry! Get your Vance & Hines Exhaust today from M motor sports.
A set of aftermarket pipes isn't particularly fancy, but getting them CARB certified takes more work
than you might think. Six days a week, the Vance & Hines Exhaust team put the CTR pipes through
10,000 miles of real-world testing. Several emissions 'bag tests' are performed during this endurance
run of mileage accumulation to quantify the output of pollutants at various intervals.