So there I was, staring at my little power stroke and thinking to myself (I do that now and then) and I thought that since it hasn't choked on an injector for almost 6 months, I was ready for another project. I found an intercooler on the ever amazing ebay from a 99 superduty a couple months ago and ordered some stainless steel tubes from Geoff at GTS-Motorsports. After a lot of polishing, sawing, die grinding, knuckle bloodying, and cussing, the "double bypass" was performed.

Here is a parts list that should be helpful.

Before:

I always forget to take the "before" picture, so this is as close as I can get... Just imagine the valve covers and Tymar intake being there too.

After:

RESULTS:

I lost a couple psi of boost. The best I could get after I got all the couplers to stay together was 25 psi. My exhaust temps dropped about 200 F which is nice. I was able to hold it wide open in OD without getting too hot. The speedo was rapped tight and the tach was approaching never never land though so I backed out. There was also a honda in the way. Pulling the mercury to Reno for hot august nights will be the real test.

Polished Pipes and y-pipe.	Components	Left side hole before!	Right side hole before!	Left side hole after!
Right side hole after!	Intercooler in place.	Still there.	Andy, what is that?	Screw the bumper, lets test it. (we raced the lawnmower)
First test found the week link... I got no more boost. 25 psi on 3.5" coupler is 240 lbs. Tighten the clamps more?	Obvioulsy too much time on my hands.	I should get a girlfriend.	Tight fit.	Dammit, my engine cover doesn't fit anymore.
Still got AC too	Badd Asss	99 setup from Ebay	factory pipes don't fit, but the couplers do.	blah blah blah
why did I take two identical pictures?	minor damage	couplers retail for about $60 a piece...

Click on the thumbnail for a larger version!