Description: Video 1 of 4. How I removed the stock Y exhaust pipe from my 2007 Honda 919 in order to replace my stock headers and exhaust pipe with those from a CBR900RR.
This video is mostly about removing the Y-pipe. I removed the front part of the headers, and then removed the bolts securing the rear shock. Video explains most of it; feel free to ask questions, I'll respond. Check out www.wristtwisters.com as well, especially if you have a Honda 919. Great forum. Great folk over there.
Full story: I replaced my stock headers with those from a CBR900RR and put on a Scorpion Carbon Fiber Street Extreme exhaust. The 900RR headers and new can have a lower backpressure (less resistance) in the exhaust, so to be safe, I also have a Power Commander III USB that re-maps the fuel injection so I make sure I don't run too lean (although the 919 is rich from the factory, so I don't think that would have been too much of an issue).
The stock pipes are a 4 into 2 into 1 into 2 setup, (the last 1 into 2 is the Y-Pipe). The 900RR headers don't split back into 2, they stay as one and angle out the side of the bike, rather than split into two, under the seat like the 919. Although I like the looks of either setup, I like seeing the area under the tail and around the tail more open, and this mod definitely helped with that.
The sound of the Scorpion can is very nice; good deep rumble and no whining when opened up.
I also had the 900RR headers coated in ceramic black. Mostly for looks, but you do actually get small power gains. It is a fragile coating, however, so you have to be careful handling the pipes after you get them coated.
See my other videos for installation tutorial and sound check.
I have other videos of my bike as well, check those out, too!
Grand Kudos to www.wristtwisters.com for most of the information on how to do this mod. You all ROCK over there! Best naked bike forum (especially for 919'ers) out there!
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