Precision Springs: Our custom primary and secondary springs improve back-shifting and hold peak RPM without the "fade" commonly experienced with weak factory springs

2:1 compression ratio makes the motor detonation sensor kick on very easily and won’t allow you to lean out the motor for extra power

To use the competition exemption noted above:

05-SHIM-7040 : Primary clutch spider shim to be used on Cat 1100 Turbo

Ceramic coated to keep heat in the pipe and reduce under hood temps

Exhaust Full Velocity / F8 ('10-11) Category_Default Category/SLED/Tools & Misc Precision Springs: Our custom primaryWe 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,