First of all, screw the quiet core, it will cost you a few ponies. Second of all, you dont have an option to run this as a slip on. The R4 Slip on and R4 full canisters are completely different. I used to run an R4 slip on before my sparks exhaust and it was an "S-bend" unlike the full silencer. The full silencer has a different sized midpipe that connects to the header that is not compatible with the stock header. It mounts at a different angle and is a different diameter. Run the full system and avoid getting the quiet core unless noise is absolutely a crisis where you ride...
-Paul
**Full TC 426cc national kit (rebuilt, back in business)**
-13:1 JE piston, national port+polish, lightened flywheel, port matched carb boot, TC 924 MX cam, TC hi rev CDI, oversize head stud kit, CRF cam chain, Carrillo HD rod, Sparks X-6 exhaust, FST auxillary oil cooler, PEP shocks, Laeger's +3 A-arms, JB Racing +1.25 swingarm, LSR axle, RPM tapered carrier, blue Maier plastic, Quadtech hood, Nacs graphics, seat cover, case saver, bar clamps etc, Renthal CR-Hi bend bars, Arens stem, Pro Design Pro Flow kit w/K&N, Outerwears airbox, snorkel hole + filter covers, RAD locknut, PEP E-Z pull clutch lever, Steel Braided brake lines, Razr MX tires, Douglas rims, Pro Armor nerfs, AC bumper, Rath seat latch, Motion Pro cables, WB e-brake block off, DID X-ring chain, Sidewinder sprockets, probably some more Im forgetting...
R.I.P Kelly Chang