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I talked to a friend today and we were talking about exhaust. He said he was talking to an engineer at Banks and the engineer told him not to take off the cat on the 3rd Gen trucks. Something about the turbo needs back pressure and if you do delete it you will have severe engine problems down the road. I was like HUH??!! I never heard of that on a diesel. Has anyone heard of this and how true can this be?? I gotta hear some feedback on this....:popcorn:
thats the 5.9 cummins im referring to..
 

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I am running around without a cat, when i got my truck it did not have one, it was supposed to but did not...weird anyways. No problem running without a cat.
 

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Well his first problem was talking to the idiot at banks... :rof

Secondly I aint had a kityy kat since about 100 miles and i bought my truck brand new at 17 miles....:beer
 

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HAHA.......That's why the '03 and '04's didn't have a cat from the factory!!!
 

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I'm a little confused. Banks seem's to be kinda a joke with many on this site. If they are such idiots.....why do the OEM's consult and hold them in such high regards. I'm not all crazy over the power I get with my banks kit, but it's not total crap either.
 

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180 thousand kms on my truck with no cat or muffler and no problems
 

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Well his first problem was talking to the idiot at banks... :rof
Exactly what I was going to say :lol3:

I'm a little confused. Banks seem's to be kinda a joke with many on this site. If they are such idiots.....why do the OEM's consult and hold them in such high regards. I'm not all crazy over the power I get with my banks kit, but it's not total crap either.

Nothing wrong with Banks' hard parts. Their electronics are okay but designed for "safe" power...not putting the engine to its full potential. Also, from what i hear, Banks is pretty full of himself...
 

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Banks is about 98% marketing, and 2% technology.
 

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I think you are right on about the banks stuff. I have a buddy that swears by it and is wanting me to get it and thinks that I am stupid for getting anything else. If the smarties were marketed anything like the banks then they would be in the same boat.
 

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they prob told you that cause there "monster" exhaust makes you reuse your cat...i dont of many performance exhaust distributors that make you do that

p.s another not i work at a shop and were a banks dealer i get bank stuff at cost. i could of got a 6 gun tuner with pda and a speed loader for a tad under $700...read my sig...tell you anything
 

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Putting on a larger exhaust, it lowers your EGT'S which is the heat coming out of the exhaust. To lower you egt's what is happening is the air is flowing threw freely that part is correct. The part that they don't tell you is the cam in this engine, the exhaust system, and the turbo is all built to maximize the pressure of air in the cylinder. The more air in the cylinder, the more fuel you can put in without smoke. Smoke only cools the cylinder pressure and heat that slows the turbo lowering boost. Without smoke the turbo gets maximum amount of volume change, that is what powers the turbo, and keeps the turbine clean which gives you maximum turbine speed. When I use to build Gas engine's for people, to get max HP and torque a buddy of mine had a program that you put in the cubic inch displacement the head casting numbers and valve sizes, intake year and part numbers, carburetor year and type, and cam, with the size of headers and exhaust, it would give you the HP and torque you could expect. It also made suggestions as to cam or valve sizes to get the best torque and HP at the speeds you wanted to run, and what you were doing with it. I keep hearing about exhaust, intakes and turbo's nowhere do I see anybody changing the cam. It all has to work together or it doesn't work properly, and the cam is the HEART of the whole thing. PLAY SAFE!
 

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I'm a little confused. Banks seem's to be kinda a joke with many on this site. If they are such idiots.....why do the OEM's consult and hold them in such high regards. I'm not all crazy over the power I get with my banks kit, but it's not total crap either.

Who told you that :rof:rof

Bob
 

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Anyone Have A Cat I Can Put Back On My Truck? Oh Yea Did The Banks Cummins That Ran The Salt Flats Have A Cat?
 

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I was talking with them one day and was considering purchasing some of their stuff and told him i wasn't wanting the exhaust. the guy asked why and I told him that I was looking into getting some stacks. his response to me was something like, " dont get those, nobody really likes them. they're only really for the hicks from down south." I guess he didn't realize my accent or something cause my response was, click! he later called me back saying, uhmm, we got disconnected. "oh my bad my have been my cell phone, click!!!"
 

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Putting on a larger exhaust, it lowers your EGT'S which is the heat coming out of the exhaust. To lower you egt's what is happening is the air is flowing threw freely that part is correct. The part that they don't tell you is the cam in this engine, the exhaust system, and the turbo is all built to maximize the pressure of air in the cylinder. The more air in the cylinder, the more fuel you can put in without smoke. Smoke only cools the cylinder pressure and heat that slows the turbo lowering boost. Without smoke the turbo gets maximum amount of volume change, that is what powers the turbo, and keeps the turbine clean which gives you maximum turbine speed. When I use to build Gas engine's for people, to get max HP and torque a buddy of mine had a program that you put in the cubic inch displacement the head casting numbers and valve sizes, intake year and part numbers, carburetor year and type, and cam, with the size of headers and exhaust, it would give you the HP and torque you could expect. It also made suggestions as to cam or valve sizes to get the best torque and HP at the speeds you wanted to run, and what you were doing with it. I keep hearing about exhaust, intakes and turbo's nowhere do I see anybody changing the cam. It all has to work together or it doesn't work properly, and the cam is the HEART of the whole thing. PLAY SAFE!

what are you trying to say here?...that the guy from banks is right?
 

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how do you guys (post 2004 trucks) get away with removing the cat (modifying the emissions system) ?? No laws for this where you are? Then add a programmer that spews black smoke ... just looking to get yanked over. How do you get away with it in this day and age? just curious.
 

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same truck as the older ones, just with a few electronics, if it's soooo harmful to these trucks, i guess that's why cummins has only been around since 06?
 

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how do you guys (post 2004 trucks) get away with removing the cat (modifying the emissions system) ?? No laws for this where you are? Then add a programmer that spews black smoke ... just looking to get yanked over. How do you get away with it in this day and age? just curious.
Well mine was supposed to have one when I purchased it but for whatever reason it did not have the cat. Then I stepped up to the 5" TBE, obv no cat, and I pass inspection fine. To the best of my knowledge the standards requiring a cat are federal standards and not state, Mass does not check diesel vehicles for emissions. It only checks vehicles with GVWs over 10,000lbs for smoke output. :thumbsup
 
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