^I dont believe its larger....but then again ive never seen anyone run the saab turbo at 20psi either. But the saab does have upgraded wheels and compressor housings and such which will increase the power output a fair bit.

the most i got out of the saab turbo was 12-14psi, so i dont know

Here is the link where i read that you need the water pump tube: http://www.google.com/url?sa=t&source=web&cd=14&ved=0CCgQFjADOAo&url=http%3A%2F%2Fwww.cobaltss.net%2Fforums%2F2-0l-lnf-performance-tech-153%2Flnf-turbo-manifold-220053%2F&ei=5OZuTcj3EM OEtgewtsCMDw&usg=AFQjCNHAntxVPekZNqYqmDrKQIKq_WA7Ww

intresting.....part number is 12592401 list is 47 and cost is 26.

well if your stock, just go out, take the 9 or so nuts off the stock manifold and 3 for the donpipe, then sett just the manifold on the engine to see if it clears? I remember broandoson had one sittin on his car, but i the site it was posted on is long gone.

The other thing im intrested to see is if the LNF o2 sensor housing and downpipe would clear, that would make it really easy. its a bit pricey though

maybe this weekend i will check to see if the turbo manifold with turbo clears without changing the waterpump tube. I havent bought the o2 housing though... what's the part # on that?

Here are more part #'s. Oil inlet for turbo: 12622404. Oil return:12612815

o2 sensor housing.......12600895