Has any one replaced their cats with aftermarket cats?I'd like to put magnaflow in but not sure of the part number.My stock ones are going bad and its killing my gas mileage.

 

Welcome to the site!

I moved this thread to the proper forum and deleted your other multiple forum thread about the same subject. Posting one question in one forum is plenty.

 

Many have. Magnaflow will be a great choice.

Here are your options,

part #94306, #94006, and #94106. They are listed in order from quietest to loudest. 94306 and 94006 are 12" bodies ( 94006 is louder due to less interior construction ), 94106 is a 9" body, also the cheapest at $67 per cat.

You can find all of those cats on Performance Curve, and Performance Peddler maybe, they dont carry 94106 I dont believe, and Summit Racing only carries the 94306. Either way these choices will flow much better than OEM, and increase sound volume greatly.

For installation, your exhaust shop should install them in the exact same locations, and move the rear O2 sensor after the hi-flow cats, this will keep the CEL out.

 

You say you have a 2005 and they are going Bad? Where are you located at? Is this a California or 49 State Truck?

 

im in indiana it has 109,000 miles.Its a 49 state truck as far as i no it was bought new from a dealer in michigan.

 

is this the right one

http://www.performancepeddler.com/de...CT_ID=MAG94306

 

Hello, just new here and hope to stay long

 

Hey I bought two 94106 from performancepeddler $100 with shipping, I just ask them how about 2 for $100 and they said yes. My truck sounds mean now. I also just order my super 44 from them for 65 shipped.

 

ok im looking at performance peddler and they have the 94106, 94106ca, and then
94106p whats the difference

 

Any idea about magnaflow catalytic converter if it is really good.?

 

No complaints so far, I have had mine on since around late spring maybe, I have the three inch with the single O2 boss, part number is 94139.

 

Thanks, but I do some research and queries about it and I tried it here Magnaflow Catalytic Converter anyone tried it here because I was really confused. Any suggestions? Thanks

 

All that page is is an informative page, I dont know what the $900+ thing is for, but I hope you are not planning to buy it, because that sounds like a direct fit kit which will be very expensive.

 

the cats are awesome and i would buy them over again. got mine from summit racing 65 a piece. i love the sound and performance they give.the best in my opinion.

 

i have my rear two cut out and im wanting to replace the front two so
im looking at performance peddler and they have the 94106, 94106ca, and then
94106p whats the difference i want the loudest ones availble and which ones would be more of a direct fit cause i was looking under the truck and the front two are look offset and do they have the bung for the 02 sensors?