Which air filter
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From: Cincinnati, Ohio
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Originally Posted by Markadeck
I really like my 6637 and 4" turbo back SS with no muffler. I am amazed by the number of other PSD owners that approach me just to ask me what in the Hell I have done to get my truck to sound so cool.
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From: OAHU,KANEOHE HAWAII
Originally Posted by nlemerise
Well, I think you will find the consensus here is the following:
for value: 6637
for filtration: AIS
for flow: probably AFE > 6637 or AIS
The single most important thing to your truck is to get clean air (just hold your hand by the intake tube at idle to get a feel for how much air a diesel ingests)...the AIS is the filter for best filtration in dusty conditions. I drive in the worst possible dust conditions all the time and the AIS gives me absolutely spotless intake tube and turbo. Unless you are going to build a big horsepower engine, I don't think you need to be concerned with any of the three choices for air flow. You would easily get 30-40K out of the AIS filter element in extreme dusty conditions (which offsets the high cost of the element - I just tap it out every couple a thousand miles). The 6637 allows more turbo "noise" and some have said that when pulling a load it can get bothersome...a drone sound. The AIS is extremely quiet, which I like because I can then listen to my books on cd without having to turn the sound way up in volume. Hope this helps you.
for value: 6637
for filtration: AIS
for flow: probably AFE > 6637 or AIS
The single most important thing to your truck is to get clean air (just hold your hand by the intake tube at idle to get a feel for how much air a diesel ingests)...the AIS is the filter for best filtration in dusty conditions. I drive in the worst possible dust conditions all the time and the AIS gives me absolutely spotless intake tube and turbo. Unless you are going to build a big horsepower engine, I don't think you need to be concerned with any of the three choices for air flow. You would easily get 30-40K out of the AIS filter element in extreme dusty conditions (which offsets the high cost of the element - I just tap it out every couple a thousand miles). The 6637 allows more turbo "noise" and some have said that when pulling a load it can get bothersome...a drone sound. The AIS is extremely quiet, which I like because I can then listen to my books on cd without having to turn the sound way up in volume. Hope this helps you.
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From: Charlotte-Fairbanks-Bflo
[QUOTE=homesteader]Markadeck do you mind me asking what brand of exhaust system you have on your truck? When you order your exhaust kit do they sell a sraight pipe kit with out the muffler? I have 02 450 dually do think a staight pipe kit will fit my truck? I also wanted to run dual pipes. THANKS[/QU
Sorry about the late reply, just saw the question for the first time. I got mine from that outfit in Tennesee, name eludes me right now. Yes it will come with or without a muffler. Little cheaper without the muffler but I ended up being glad I got the muffler cuz it fit right onto my Cat Powered motor home and now it sounds cool too. Can't answer the duals question, other that with a "Why"?
Sorry about the late reply, just saw the question for the first time. I got mine from that outfit in Tennesee, name eludes me right now. Yes it will come with or without a muffler. Little cheaper without the muffler but I ended up being glad I got the muffler cuz it fit right onto my Cat Powered motor home and now it sounds cool too. Can't answer the duals question, other that with a "Why"?
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I added the 6637 filter and a muffler delete on my 99 and it runs very nice and sounds great but it is a little loud with the passenger windows down so I will probably add a nice muffler or whole turbo back exaust some day. I love the sound of the 6637 though.... Mike b
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