Iceracer posted a nice step by step thread on pwctoday for installing the limited chamber. I'll try and locate it......here you go:
http://www.pwctoday.com/showthread.php?t=162136
We just installed one on my friend's 750 and had to:
1. cut the lord mount off the stock exhaust manifold
2. clearance (dent with a hammer) the chamber near the exhaust manifold
3. add a 3/8" water nipple to the stinger to keep the hoses form melting
4. installed a 4" ID x 3" long silicone coupler with T-bolt clamps for chamber to headpipe connection.
5. drilled 1.5" hole through both baffle plates in the stock waterbox. Doing the 1 big hole versus several smaller increases the noise considerably over stock, but does sound good to me.
We were able to use the stock 90 degree elbows and shorten the hoses but is a VERY tight and ugly fit. Getting a pre formed radiator hose with a 90 degree bend in it and then cut it to lenghth would be a better setup.
Major difference over the POS Westcoast pipe he was running. We're now putting in an SXR prop to take full advantage of the power.