Preface - I am mechanically challenged despite working on my own vehicles for years. I recognize that if 90% of internet mechanics say a job will take an hour, I need to plan on 3-4 hours. This install was no exception.
Most feedback indicated that it would take between 5-30 minutes. It took me about 90. The hole for the O2 sensor was just far enough away that it puts a lot of tension on the wires. Rotating the pipe to relieve some of the tension puts it right against the swingarm. I went with wire tension (a forum search showed that a lot of folks pull the O2 sensor and plug in a resistor, so that is an option). My drill died before fully getting the hole drilled but I was able to hammer an awl through the rest of the way and it worked for the rivet just fine.
Went for a ride and checked the clamp afterwards. It was still on nice and tight. I would imagine you could get away without doing the rivet, but I wouldn't want to chance losing it for want of something so tiny.
As for the sound, it is freaking awesome! It is a loud rumble at, and just off idle, but not obnoxious. Cracking the throttle unleashes the screams of joy, from me and the bike. Of course it's all relative but my friends were complimentary and my wife and kids didn't complain, so I'm happy with it!
I desperately wanted to get rid of the big Jardine can I had on my bike and the rear pegs for a cleaner look. Not only visual, but I really wanted to have a significant presence on this thing while riding.
The exhaust note that comes with this setup (baffle out) is absolutely unreal. It is so crazy to me how gnarly this bike sounds now. You can literally hear it a mile away.
I'd highly recommend investing in some nice earplugs that allow you to still enjoy the beautiful sound of this exhaust but doesn't vibrate the drums out of your ears. Extremely happy with my decision of getting Coffman over all of the other types of exhaust out there. I'd recommend everyone getting this but we can't have every F4i sounding this good!
Coffman's Honda CBR 600 F4I (2001-06) Shorty Exhaust
Hated the exhaust on my bike when I got it, Love it so much now!! Thank you Coffman!!
Love love it.
- Made in the U.S.A.
- Preinstalled removable CNC machined db-killer (baffle) retained inside the tip through the highest quality high-temp silicone O-Ring, spacer, and snap-ring.
- Includes a large perforated core encompassed by replaceable packing assisting in heat management and sound suppression.
- All pipes are manufactured from 304 stainless steel tubing that is CNC machined, mandrel bent then tig welded to perfection.
- Designed to fit stock applications to wide tired to stretched swing arm applications. They then have a machined angled cut billet aluminum tip anodized with an array of colors ranging from ceramic red, black, gold or blue. Polished aluminum is also available on the tip.
- This tip can be rotated to suit your desired appearance.