I want to go ahead and replace my four cats with two aftermarket ones. I already have two si/so 40 flows but want to go ahead and finish the exhaust with the cats. Which brand should I go with? What part number? I just want to make sure that everything (o2 sensors) works the same way when I am done.

 

Heres a magnaflow high flow cat

http://www.troyerperformance.com/cgi...atalogno=94306

also, kinda off topic, but I plan to run true duals the style of yours with 40 series delta flows, how does it sound? Can you be heard going up hill at like 2400rpms a half mile away? I'm looking for those kind of results. Do you have a drive by sound clip? or a sound clip of anything? & pics?

 

I put a set of Magnaflow High flow cats on mine part number 94139 I got them from www.Performancepeddler.com coupon code Fordf150.net for 54.11

 

I have the exact same setup and want to do the exact same with the removal of the cats. Anyone do this yet without throwing all kinds of cel's or other problems.

 

I dont get many opportunities to hear my truck from the outside while it is being driven, but the few times that I have heard it driving away it sounds really good. Throaty growl, and I can usually hear it when it is leaving the neighborhood about a 1/4 to 1/2 mile away if she is getting on it.

So, if I get either the troyer magnaflow or the one from that other website I need to take it to a muffler shop have them cut the first cat off between the o2 sensor and the cat and cut the second cat off between the sensor and the cat, weld the new cat in place and we are good to go? The sensors arent messed with at all?

 

Does anyone have any pics of this setup? (replace the 4 with two high flows). I want to see a visual of the o2sensors and new cats after install. Thanks.

 

I too would like to see pics of this please...

 

My father has a 92 f150 351. I have yet to see the problem but he said a tube has apparently rusted and detached itself deom the exhaust pipe. This is in the area of the cats. Does anyone know what this does first of all? Secondly we talked about redoing that area of the exhaust all together. He currently runs flowmaster mufflers into a dual rear exit. Would like to see about running true duals. I have ran mustangs with off-road pipes and o2 cheater and I was wondering if this can be done for the trucks. Or is it better to run high flow cats? Do not have to worry about emissions. AAny help on this would be great, or if you can direct me elsewhere. What company could I get the parts from?
Thanks