My new tractor hauler(air intake and exhaust issues)

Well, I got the 94, 2500 Cummins up here from Texas and had to get it thru a Pa Inspection. That required a muffler. That dam muffler has resulted in a power drain. I will sawsall it off this evening and put a downward tip on the end. Where can I get inexpensive exhaust pipes and a cold air system for that engine? Thanks In Advance

Did the muffler shop put a muffler for a gasser on there?

(quoted from post at 11:46:11 03/14/13) Where can I get inexpensive exhaust pipes and a cold air system for that engine? Thanks In Advance

Click to expand...

Do not under any circumstance put a cold air aftermarket air filter on it. They do not filter the air fine enough and cause very fast wear on the cylinder walls of the engine.

Your best bet is to go to the cummins forum. Everything you could want to know and more. Look up BHAF, big honking airfilter.

The truck should already have an intercooler mounted after the turbo.

I run a muffler on my 95 and i do not see any power loss at all , Myself i do not like LOUD trucks loud bikes . If your worried about power loss then why did not drill the baffle ??? as far as a cold air intake yea they really work , sure they do as they are still drawing air from inside the engine compartment . What they do is draw money out of your pocket . Just like my buddy with his 2001 had to put the loud huge exhaust system on it to get better fuel mileage he was getting 16-16.5 before after he was getting 16-16.5 BUT he was down on cash to the tune of 750 bucks ,. Asked him how much fuel could he have bought with the money he spent on the exhaust system . Then he was told by EXPERTS that he needed to get a tuner so he did as this was the cure to the LOW FUEL MILEAGE so he got it and once again he gained no mileage but it did perk it up a little BUT here again another 750 out the winder. Ya wat to wake up your 94 First off have the valves adjusted probably never been done , Next have the pump timing checked here again probably never been done , next open up the aneroid open up the fuel plate and turn the RPM's up This is what i have done to mine and other then buying the Snap ON cummins tool kit for the Cummins so i can do my own work it has cost me NOTHING to get mine to run well . BUT it is your wallet so do as you see fit. I am no expert on Cummins i just work on them and still learning , The boys down the street from me are and are busy all the time fixen the trucks they have JUICED up . The drive line on a pick up will only take so much before you start maken SPARE PARTS.

I put an MBRP 4" turbo back kit on my 01. Around 300 bucks. They make a muffler delete pipe I think thats around a hundred or if you have a big truck parts store near you can get some of the stainless flex pipe and a couple clamps but time you pay for that you could just buy the muffler delete pipe. I say stainless cause the regular flex pipe will rust out pretty quick. As far as cold air intake I have a S&B with an oil type filter on mine. Helps her breathe alittle better and gained a little mpg but made my truck engine louder. Stay away from K&N. There bad news from what I researched before I bought mine. Also keep in mind that your truck wont like that cold air intake as much in the winter. cummins forum.com has some good research material but its kinda like this forum gotta find the good and weed out the bad.

This is the cheapest way to go. I put on of these on my old 12 valve. They have went up since I put mine on but I think they are about $90 for the filter and it will clamp on with the factory clamp in the air box. As far as the exhaust goes. If you have to have a muffler for inspection purposes then buy a performance muffler like one of the MBRP ones taht someone else has already mentioned. Some of them are basically just a bigger pipe. Its big like a muffler but does not have any of the baffles in them. That will help it some.

Chris

Like what some of these guys were saying go with the MBRP 4" exhaust, they sound great straight pipe, but with your regulations go with the peformance muffler, It would still have a good sound. Cold air intakes are a +, gotta keep that engine cool. But I would run the stock one if you dont have a peformance chip on your cummins, but if you did, I would put one on. On my 01 7.3 I run a 6637 Napa filter, and it has much better throttle response, really HIISSSES in the cab.

91.5 and up Cummins trucks have one.