My stock exhaust is now at the end of its life. The exhaust manifolds are cracked the muffler is rusted through and the cats have holes in them. I am replacing the manifolds with long tube headers and I'm replacing the muffler. The existing pipes are solid my problem is the cross pipe the connects both sides and then goes in to the cats. I was just going to remove the cats but after looking at it I'm not sure because the area is cramped for space and the bends are pretty tight. Does anyone have suggestions on what to do I'd appreciate any and all help. I'm trying to keep the cost to an absolute minimum

 

Do you have to put it there? Sometimes you have to rearrange the system to make it all fit.

 

hmm I never thought of that I'll have to check it out thanks

 

If you are replacing most of the exhaust anyway you would be better off putting true dual exhaust on, IMO. If you are not in an inspection state you may consider just deleting the cats all together, not to mention you can recoup some money with them at a scrap yard.

 

Agreed

 

X2

 

I am driving a 1992 F150 extended cab XLT 4x4 with a 5.0 L V8. I live in Missouri and since only 5 counties require emissions testing I plan on removing the cats completely. My current and biggest dilemma is getting my long tube headers connected with the rest of the exhaust system. Should I leave it the stock SISO setup and if so how do I connect the left and right side together. I am going to be reusing most if not all of the existing piping because it is solid. Or should I go with a DIDO setup and if so how easy is it to install on my model of truck because from what I have seen underneath is kinda cramped.