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Discussion Starter · #1 ·
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? :D

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.
 

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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
 

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SuperNewbie
1995 Thunderbird LX 4.6 red
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you can also use the part numbers from the ones posted above and shop ebay for a possibly better price.
 

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Discussion Starter · #5 ·
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?
 

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Discussion Starter · #7 ·
ok I'll call magnaflow and summit tomorrow and see what they can tell me about MPE-94065
 

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Discussion Starter · #8 ·
summit has no answers and magnaflow wont return my calls!! :mad: I need high flow cats gosh dang it!!!!
 

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Discussion Starter · #11 ·
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)
 

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Listening on 141.850 mHz!
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Look at Magnaflow part number 94004 for the high-flow cats. I'm going for those.
 
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