I did the install myself. Don't waste the money on installation. The pipes come with simple directions, but you could figure it out easy enough. They also recommend a rejet which is a bit more involved but plenty of info is found on this forum. http://members.bluefrog.com/~pwhitbec/Triumph/carbs0.html
I was able to drop the carb bowls and rejet without removing the carbs from the bike. I used a sears 1/4" ratchet
http://www.sears.com/sr/javasr/product.do?BV_UseBVCookie=Yes&vertical=TOOL&pid=00947478000

that would accept Philliphs head bits to reach the tight places. Before you remove the bowls, order your 135 main jets from Brent along with the the Carb screw kit that will replace the soft philliphs head screws with 8mm stainless head cap screws. http://www.newspeedmaster.com/html/carb_screw_kit.html
You can again use the sears ratchet tool with an 8mm bit to make carb jetting easier.