I thought some of you might be interested on how I did my cat-ox delete. I have to say that it was worth every second of my time. If I couldn't do it myself I'd probably buy the pipe that monstercraftsman sells. I noticed a good HP gain and a huge improvement on how fast the turbo spools up.

I welded the cat to the table to make a one time JIG, then cut out the cat...



Then welded some 2.25 and 2.5" tubing in it's place; it was what I had on hand and worked really well, the 2 sizes step up to the turbo and fit the flanges perfectly. Then cut the tack welds off the flanges and it fit perfectly.





Here is the car, I bought it for $2500. It had new Michelins and a new battery. Was at auction- I fear what happened to the original owner, I don't know why you'd put new tires then have to rid of your car.







You guys seem to have a great forum.

I'm Jake, a Toyota guy, but have owned a few european cars, have a Dodge am not too brand loyal. Got a really nice 85 300D CA recently, am enjoying it so far, it's different and different is always good!

Thanks for those that have helped with my questions so far

Here's also a pic of a buggy I built from a 97 supercharged 4runner. Just for fun

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Jake, 15 years working on Toyota's for a living, self employed now- Landcruiser restorations.
1985 W123 300D CA emissions, 225K miles; deleted cat/oxidizer, all EGR removed
1997 Supercharged 4runner desert buggy
1993 Cummins D250 ~250hp 650 ft lbs, keeping it mild
1978 Honda CVCC Civic, the tiny collectable
1994 F350 4x4 crew (soon to receive the cummins)
2003 Tacoma DC, the wifes/camping
1983 John Deere 310C (Backhoe, for work)