The ext's are a great mod. They make the Busa handle alittle slower, nothing adjusting your riding can't fix. I ran a set of ext's on my Busa riding through the mountains on the last Busa fall ride meet and had no problems except dragging my size 15 boots in the turns. IMO the looks alone make it worthwhile, they just give it something that makes the Busa appear more aggressive looking. I got mine from NYC parts off of Ebay for $203 shipped.
The way they're machined makes them a real tight fit and the quality of the aluminum makes it safe IMO. It's not a simple drop-in, they take alittle finesse to get them to fit.(light fileing)
From a cost perspective it ran me about $300. total.
You'll need to buy a 140 link chain, have a chain tool and get some lowering links. So add another $30-35 for a set of dogbones, you can get them off of Ebay also, probly from the same place that sells the ext's.
Tools you'll need.
A rear stand or a way to support you bike to take the weight off the rearend.
Metric allen wrenches.
Rubber tip hammer.
Metric 3/8's socket set.
A 1/2" torque wrench and a socket to fit the rear axle nut.(I think it's 1 1/16) The rear axle nut torque setting is 72 ft-lbs.
There might be a few tools i've left off, but this will help.
You have to reroute the rear brake line to straighten it out. There's a loop the line passes through on the swingarm that you have to remove the brakeline from. (Perfect time for a SS brake line&HH pad upgrade).
When you done the bike will need some rear shock adjustment. Depending on your weight, you'll probly have to turn up the spring adjustment and fiddle with the dampening&compression settings to find a happy medium. (There's a bunch of us here that can help you with this, try PMing Jinkster)
My post makes bolting a set of ext's on seem alittle complicated but it's really not. It's not a bolt-on and roll deal, nothing ever is, there's just a few extra steps you have to take.
If you need any help or have any questions give me a ring.
540-910-0911 Paul.
