[Chris_Murder]

So this is the set up I'm going to run... (1) one catalytic converter on each bank just after the manifolds much like the stock configuration [two catalytic converters instead of having 3] (only I want High flows) than I will be mounting a mid mount dual in dual out magnaflow, than true duals back into dynomax mufflers out back in the stock location (THANKS ROBBIE) my question now is where do I acquire the high flow cats

I have the 2 1/4" mid mount muffler and mufflers for out back just not installed yet.

Where can I find and buy the catalytic converters I want and need, do I need 2 way or 3 way... how long... round or oval...and high flow is what I want.

I've searched summit but the catalytic converters I'm finding are for stock applications or look like something I've never seen.

Also I need to pass smog... so this will work right?

Since its aparently illegal to modify catalytic converter configurations other than stock in nevada I may end up going to AZ or to someone named Chop-o. OBD II means I wont ever have a sniffer inserted and no one ever visually inspects out here so basically I'm helping the environment only slightly lol. All they do out here for OBD II is plug in the computer while running the car and look for smoke. Not quite california yet lol.

Anyway answers are appreciated thank you.

 

[FordFanatic]

scp sells highflows.

 

[master486]

All you need is an OBDII compliant universal 3-way cat. The shape doesn't matter, it's more for fitting to a specific vehicle. What matters is the capacity of the converter. They are rated up to a maximum engine displacement. I'd say for the best look and functionality get one of the following, depending on what size pipe you are using.

http://store.summitracing.com/partdetail.asp?autofilter=1&part=MPE-94604&N=700+115&autoview=sku
http://store.summitracing.com/partdetail.asp?autofilter=1&part=MPE-94605&N=700+115&autoview=sku
http://store.summitracing.com/partdetail.asp?autofilter=1&part=MPE-94606&N=700+115&autoview=sku

As an alternative, if you don't really care about the shape and if you are going with completely new tubing from the manifolds back, you'll need to have some 02 sensors bungs welded in. You can get one of the following converters to eliminate that from your cost.

http://store.summitracing.com/partdetail.asp?autofilter=1&part=MPE-94164&N=700+115&autoview=sku
http://store.summitracing.com/partdetail.asp?autofilter=1&part=MPE-94165&N=700+115&autoview=sku

The above converters are short ones but you can just as well opt for the following standard length ones.

http://store.summitracing.com/partdetail.asp?autofilter=1&part=MPE-94064&N=700+115&autoview=sku
http://store.summitracing.com/partdetail.asp?autofilter=1&part=MPE-94065&N=700+115&autoview=sku
http://store.summitracing.com/partdetail.asp?autofilter=1&part=MPE-94066&N=700+115&autoview=sku

 

[supergordo]

you can also use the part numbers from the ones posted above and shop ebay for a possibly better price.

 

[Chris_Murder]

so the ones with o2 bungs welded in will allow me to just plug in my fairly new o2's? or will it throw a code? will it make me buy new o2's for the right size? Or should I just buy what I know and get the 3 way ones without the bungs welded in and have new o2 bungs welded in the pipe itself like stock?

 

[master486]

You should call magnaflow to see about your 02 sensors fitting. It will save you a lot of money at the exhaust shop because 02 bungs can be expensive, especially 4 of them. No codes will be thrown.

 

[Chris_Murder]

ok I'll call magnaflow and summit tomorrow and see what they can tell me about MPE-94065

 

[Chris_Murder]

summit has no answers and magnaflow wont return my calls!! I need high flow cats gosh dang it!!!!

 

[master486]

I'm not even sure if there are different threads for 02 sensors. I would be comfortable enough to order them and try to use my 02 sensors but to each their own.

 

[FordFanatic]

summit has no answers and magnaflow wont return my calls!! I need high flow cats gosh dang it!!!!

just order them from scp.

edit: yikes, they went up in price some from when i got mine.

 

[Chris_Murder]

just order them from scp.

edit: yikes, they went up in price some from when i got mine.

they recommend locating the farther down stream, is that what you did? did you retain stock locations on the o2's? I need to stay with the check light off... (and no I wont just chip it or mil eliminator it, or resistor it)

 

[FordFanatic]

yeah mine are pretty much in the stock locations, i re-used the stock o2's without extensions.

 

[Gonzalo Duque]

Look at Magnaflow part number 94004 for the high-flow cats. I'm going for those.