MBRP DUALS CAT or no CAT
03-05-2007, 11:59 PM
#2
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Where you from and do you have emissions yet. I live in PA and dont have it....yet. I like mine w/o. The drone aint to bad and should help your egts i think.
03-06-2007, 12:23 AM
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I am in Nevada. The county i am in does not require a smog check.
Is the drone you hear annoying? Or is it just at certain speeds that you hear it. How about when your towing, how is it then?
Is the drone you hear annoying? Or is it just at certain speeds that you hear it. How about when your towing, how is it then?
03-06-2007, 01:34 AM
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I have the MBRP duals but still have the cat, I was wondering the same thing b/c I am considering removing it to free things up a little bit but don't want to do it if there is going to be any drone I still do a lot of highway driving.
03-06-2007, 09:20 AM
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For me when I had the cat on it was pretty quite. You really couldn't hear that there was an exhaust on the back. Then when I did the cat delete it made it louder. Drone was hardly there at any rpm. But this weekend I installed a new sps6280 super and the drone is alot more noticeable. Seems like even at highway you will hear some xhaust note. but if your like me, I don't mind it at all.
03-06-2007, 08:49 PM
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the dealership told me if you remove the cat that i will mess it up and cause it to run different. just thought i would ask and see what anyone thought.
06 2500 ctd straight piped
06 2500 ctd straight piped
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03-06-2007, 09:23 PM
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don't see that it was mentioned... unless I over looked but, removing the cat will drop your EGT's up to 100F.
As far as my truck... after removing it I noticed no difference at all in sound. I did see the drop in EGT's. I have a MBRP with the muffler in place. Everything else is straight piped.
I was told by my dealer that anything others than a cat-back will void the " emissions warranty " so, if that's a concern for you... be careful
As far as my truck... after removing it I noticed no difference at all in sound. I did see the drop in EGT's. I have a MBRP with the muffler in place. Everything else is straight piped.
I was told by my dealer that anything others than a cat-back will void the " emissions warranty " so, if that's a concern for you... be careful
03-06-2007, 11:14 PM
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One of the diesel mags had an article about HP gain from removing the cat in certain applications. If I remember right it is usually worth 5-10hp, does this sound about right?
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