Exhaust Full Velocity / F8 ('10-11) Finish:Black Manual chain tensioner that can

Manual chain tensioner that can be adjusted to any desired chain tension

giving it much better throttle response

which doesn't even reach a full one to one ratio

Designed and built in the USA

Exhaust Full Velocity / F8 ('10-11) Finish:Black Manual chain tensioner that canWe extensively tested this muffler to ensure the best combination of power, light weight, quiet sounds levels, and affordable price. Weighing in at a mere 8 lbs (11 lbs lighter than stock), shed some fat from your Cat! The muffler produced a noticeable increase in punch and throttle response as well. One of our main concerns was sound levels so our final design makes a nice deep throaty sound when you punch it but is not much louder than stock,