I just put mine on a few weeks ago. It's not that bad really. You can work the dp down from above if you're patient. After some trial and error I put the v band on the turbo exhaust housing and worked the Banks dp up into it. I layed on the engine on the driver side and reached around behind the turbo with my left hand to work the dp into the clamp and held the dp up with the EGT port welded on to the dp with my right. The problem I had is that the metal thickness on the factory downpipe is thicker than the Banks so I think there is a little bit of gap between the housing and the dp when the clamp is tightened. Essentially the V band needs replaced with one that has a more narrow "v". I cut the flare off of the factory dp and put it onto the banks to make a thicker flare but I couldn't get everything into the clamp so I just left it. $30 from NAPA for a v clamp with a .25" v and 3.25" diameter.
Not sure if your's is different, but inside diameter ends up being more like 2.75". I have an old fuel system so I didn't really notice a power difference, but what I did notice is a lot less drag when you pop the clutch to shift. Also, the sound is veeeery nice.
CAUTION: Immediately put your exhaust back on or you may fall in love with the rumble and turbo whistle you get with the dp only!
Good luck, keep us posted
