Well, today I had a day off work and finally got round to fitting my B5 TIP, which I bought unused from Fran-S3 ages ago! It's a v1 TIP, so it's the multi-piece version. I took some pictures of the installation in case it helps anyone else. The v2/v3 installation will be simpler because of the 1-piece construction of the TIP.
Engine bay prior to installation, with the OEM TIP but with my Saikou Michi catch can visible just under the strut brace:
First, I smoothed off the internal edges of the aluminium section of the TIP where the various pipes join the main body, more to satisfy my OCD tendencies than anything else.
Next I removed the engine cover, battery cover, and airbox. I also removed the standard air duct to the airbox, which is fed from the off-side front wheel arch. This is just held on with 1 nut in the engine bay:
Then I un-plumbed the various connections into the original TIP. Luckily I had already replaced most of the 1-use Audi hose clips with Jubilee versions, so this was relatively straightforward and painless. Finally, I removed undid the jubilee clip holding the original TIP to the turbo itself, and removed the TIP, leaving this:
Original TIP was actually in perfect condition:
Turbo hiding away at the back of the engine:
Quick check of the turbo and all looks healthy, vanes spin nice & free:
Next for the installation of the aluminium adapter. Mine is the original version with 2 2mm grub screws. First, I applied a bead of Loctite 5920 Premium Silicone Copper Gasket Sealant (rated to 350 deg C, available from Halfrauds for a fiver) around the inside of the adapter, and also into each of the grub screw threads to ensure an air-tight seal once installed. You only need a thin bead; in the picture below I've used a bit too much, but I wanted to ensure a good seal:
Next, with the adapter installed onto the turbo (it's a snug fit, so wiggle/twist it to get it on, DON'T force it), I wiped the excess sealant away, being very careful not to get any on the turbo vanes:
With the grub screws at the 2 and 4 o'clock positions, I nipped them up and attached the first part of the TIP onto the adapter. I positioned the head of the jubilee clip towards the rear of the engine bay for easiest access. You'll need a 7mm socket and small ratchet to tighten the jubilee around the TIP to hold it tight on the adapter:
I must admit that I then spent quite some time fine-tuning the routing of the various pipes & hoses around the new TIP to ensure a neat installation, and after re-fitting all connections to the main aluminium element of the TIP, ended up with this, which I was pretty pleased with:
I decided to spray the aluminium heat shield / filter mount with Halfrauds crinkle black paint so that it blended into the engine bay:
Finally, after fitting the remaining 90 degree bend and Jetex filter and replacing the engine covers, I ended up with this:
Very pleased with the installation, and the way the car drives. Hope the pictures are useful to anyone else planning this installation.