Bought a set of these Untion 2-into-1 exhaust pipes, and installed them on my 2008 CVO Ultra. WOW! What an incredible difference in power, and SOUND! The sound is AWESOME! Very nice deep tone, and only loud under acceleration. When just cruising, they quiet down very nicely. They made a big difference in power over 2600 rpm, and made my bike run cooler by eliminating that split pipe under the seat. Excellent fit and finish. No problems installing whatsoever. Highly recommend this pipe to any Touring Harley, at a fraction of the cost of other pipes that don't sound as good. You'll love it like I do.