Attention: TDR Forum Junkies 
I've had a few requests for this, so I'll toss down my experiences with the 03 pre-turbo pyro install. No pics though, as someone's made off with my digital camera (Sorry about this guys, I promise pics as soon as I find out who borrowed it).
Its actually real straight forward, especially if you've done one on an earlier model, but you'll need a smaller drill to get to the back two cylinders spot on the exhaust manifold. I used a small air drill I had here, as my cordless wouldn't fit (theres a canister and air conditioning lines in the way).
The hole fits in the same postion as it does on other installs, which is say 5/8's of an inch to the left of centre-line of the exhaust manifold, and about 1 inch up from the turbo mount flange. I removed the turbo mount nuts from the studs, and the turbo was able to drop down about 1/4", just enough to stuff a rag in there, to prevent any larger pieces from dropping into the exhaust housing.
With outside air temps hovering in the 32F area, I've found cruise EGTs at 600F, WOT EGTs didn't get past 1050. I haven't done any towing, but I'll probably solve that in the next week or so. Cool-down is a little interesting though. The EGTs don't seem to drop below 300F, and actually tend to hover around the 325 mark, even with 3 or 4 minutes of cool-down.
Its actually real straight forward, especially if you've done one on an earlier model, but you'll need a smaller drill to get to the back two cylinders spot on the exhaust manifold. I used a small air drill I had here, as my cordless wouldn't fit (theres a canister and air conditioning lines in the way).
The hole fits in the same postion as it does on other installs, which is say 5/8's of an inch to the left of centre-line of the exhaust manifold, and about 1 inch up from the turbo mount flange. I removed the turbo mount nuts from the studs, and the turbo was able to drop down about 1/4", just enough to stuff a rag in there, to prevent any larger pieces from dropping into the exhaust housing.
With outside air temps hovering in the 32F area, I've found cruise EGTs at 600F, WOT EGTs didn't get past 1050. I haven't done any towing, but I'll probably solve that in the next week or so. Cool-down is a little interesting though. The EGTs don't seem to drop below 300F, and actually tend to hover around the 325 mark, even with 3 or 4 minutes of cool-down.
I don't understand NPT sizing either, but a 1/4" NPT tap is actually about 1/2" in diameter.
