horsepower

Big inch motor? Turbo kit? Intake?

Gain more from your Vtwin…
The Grand National muffler wakes up the Street (and Street Rod) with a genuine v-twin exhaust note and includes a removable stainless steel dB reducer that allows you to…
Increase power by eliminating the restrictive stock OE air cleaner and replacing it with a K&N AirCharger Performance Intake, which is a high-flow air filter and cast…
K&N Performance AirCharger Intake kit for Harley-Davidson Motorcycles…
hot bike burnout

Make more power without breaking the bank

Coaxing horsepower on a budget.

Suck, bang, blow

Help your Big Twin breathe better with a Tuned Induction Air Cleaner Kit from S&S. This kit features a swept-forward, 2-into-1 design that rams additional air into the…

Suck, bang, blow

Quick video comparison of stock Harley-Davidson 883 Iron exhaust versus Two Brothers Racing COMP-S exhaust and COMP-V intake.