97 downpipe

dieselcamino said:

with the stock turbo 3 inch is the biggest you can start at, some make a 3 inch to an expanded 4 but i really dont see the point unless you want more head aches trying to install it

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I agree 100% with this!!!

I think the world of Dale Isley, and his stuff that he sells. He's a great guy! :thumbsup: But I bought one of the first 3"-3.5"-4" downpipes he had made, and always had one heckuva time getting everything to clear. It had clearance probs between the passenger side up pipe (to the turbo), between the floor board after the pinch weld, & more other places than I care to think about. And it wasn't my "First Rodeo" on a dp install. This one called for more "creative clearancing" than I've had to use on any other dp. I even loosened up the motor & tranny mounts, and levered the whole motor/tranny/transfer case forwards as much as I could (maybe 3/8"????). It made weird in-cab "resonance" from it's rubbing, and the floorboard was always warm on the passenger's side. Nice in the winter, but no fun this time of year.... :icon_rolleyes: Maybe the newer version is slightly better. I hope so.

I just know I was glad to go back to a "conventional" 3" round (Flowmaster) dp. There's a TON of room for that one in my truck, especially after all I did to try & get the other one to clear.... It's quieter, and I don't notice any diff in performance, but have no real accurate way to tell that for certain.....

Jimmie

Hmmm. I'm not certain about the amount of pipe between your cat delete pipe & new downpipe. You may need to find some more pipe to get it to connenct or not. I'm not familiar with the Diamond Eye stuff. Hopefully,, it'll all fit together after you get the new dp in, and the cat off.....

If you haven't gotten your cat off yet, an old member here named Kevin Ferguson posted (a very long time ago) about removing his cat with his Hi-Lift jack. The jack basically lays horizontally under the truck. He used a ton of rope hodling one end of the jack to something stable, like the front axle housing somewhere. The other end was roped around the cat, and then the portion of the jack that moves/works. You then jack the handle, & off comes the cat. He called it "Jacking off the Cat"...... It works really well. I've used my Hi-Lift jack to do that several times......

This all came about because of the the way Ford clamps, and orients (rotationally speaking) the cats on these trucks. The clamp makes a big round dvot in the cat't flange & the exhaust pipe, and there's a little "peg" on the cat to orient the cat itself. You really can't see this peg until you've removed the cat, and it prevents you from doing very much twisting of the cat when trying to remove it......

Jimmie