On my shorty hookers I'm now told I'll need a off road pipe and I can't have my cat welded back since its punshed out anyway. I have the stock cat back for now and I'm looking for a bolt up. Who and where can I get a good one?

Thanks

 

I don't believe that there is a direct bolt up for the Hooker shorties(ypipe)!If you want to have an off road pipe or a new cat it needs to be fabbed up!

 

i actually paid $149 to racenet.net for a 3" Carsound hi-flow cat (18") with the correct flanges. good thing is it's now bolt up, so i could get an 18" test pipe with the same flanges and swap em.

 

I just finished a Hooker shorty insta.. Damn, what a PINA... Nevertheless, I am still working on my cat to exhaust conversion also. I decided to use the starter plate that hooker gave me and weld it onto my cat. I gutted the cat and had to cut off some of the pipematerial from the front. Everything looks like it is going to work.

Good luck

Dustin

 

I gutted my cat when I installed the Hooker shorties, it sounds like crap with the cutout open. How do I make an offroad pipe without cutting up the factory cat/flanges?
The Hooker Y pipe ends with an oval opening and uses a crazy flange.

I guess I have to have someone fab up a matching crazy flange, then transistion it from oval to round, then try and get a flange that bolts up to the stock catback or cut the flange off the stock catback and change it to a standard 3 bolt flange.

Sounds very expensive to me, any other option to make it sound better?
I don't really want to buy a new cat, there is no way this thing would pass emissions even with one.

 

go to a local machine shop with the dimensions of the flange and have them make you one and use it for an offroad pipe. It shouldnt be too much. I had a freind cut me one for free with a cnc machine so all i had to do was get it welded to some 3 inch tubing so it only takes 5 min to swap the cat with an offroad pipe (for emmissions). i cant see it costing more than 20 bucks for a machine shop to do it. fireman sounds like you need to get a better tune, mine passes emmissions no prob (with the cat). Its all in the tuneing (LT1 edit)

 

Yep, thats what i had. I had my shop flange up both the cat and the ORP (Mac ORP) and i can swap them when i take the test

 

I went to the junkyard and found the oval front flange on a mid 80's camaro. I don't know if I was lucky or what but it is the same as the one hooker sends with the headers and it looked like it came from the factory on that camaro. no obvious welds ect.. The camaro I got it off had stock exhaust with a single cat in about the same place as my 95. Hope this helps
Robert