6637 or aftermarket cold air

rem870ex · Mar 2, 2015

I was wondering whether paying the extra money for a cold air intake such as air aid, banks ram air etc. Is worth it or just doing a 6637 would I get the same results

Powerstroke Man 6.4 · Mar 3, 2015

rem870ex said:
I was wondering whether paying the extra money for a cold air intake such as air aid, banks ram air etc. Is worth it or just doing a 6637 would I get the same results

I had a 6637 on my old 7.3 with a 38R, 160/100s it did fine.

White Buffalo · Mar 3, 2015

I swap back and forth between the Ford AIS and 6637 on the F-250. Will throw the AIS w/fender sleeve on when towing our 5th wheel long distances to keep things quieter in the cab. Otherwise I use the 6637. On the Excursion I just leave the 6637 on there. Might try the S&B filter someday. Used oil analysis with the 6637 comes back with silicon under 10 ppm so filtration is great. For me it comes down to the difference in noise levels when towing long distances..........

rem870ex · Mar 3, 2015

That clears a lot of stuff up thanks guys

Justin@DP-Tuner · Mar 3, 2015

I have used the 6637 and now use the new S&B kit. Very pleased with it and it quiets things down quite a bit in the cab (especially with the 38R). The price is really good on the S&B kit as well. Check it out HERE. The noise level on the 6637 just drove me nuts.

You can get it with an oiled filter or dry paper filter.

lincolnlocker · Mar 3, 2015

no ***in way in hell i will ever run a cone filter of any type again.. every brand has dusted the intske on my dually.. 6637 and be done with it! dave at swamps has made over 800 fwhp with a 6637 filter..
fwiw, i put the 2790(6637s big brother) on my 6.7 and it kicks ass.

live life full throttle

PSD POWER007 · Mar 3, 2015

lincolnlocker said:
no ***in way in hell i will ever run a cone filter of any type again.. every brand has dusted the intske on my dually.. 6637 and be done with it! dave at swamps has made over 800 fwhp with a 6637 filter..
fwiw, i put the 2790(6637s big brother) on my 6.7 and it kicks ass.

live life full throttle

What's the Donaldson equivalent to the 2790?

lincolnlocker · Mar 3, 2015

PSD POWER007 said:
What's the Donaldson equivalent to the 2790?

this is the filter i used.. typing 2790 is way easier.. i always use donaldsons...

live life full throttle

PSD POWER007 · Mar 3, 2015

lincolnlocker said:
this is the filter i used.. typing 2790 is way easier.. i always use donaldsons...

live life full throttle

Awesome!!
The non-Donaldson filters cause me to suck in the filter minder on my 38r.

lincolnlocker · Mar 3, 2015

PSD POWER007 said:
Awesome!!
The non-Donaldson filters cause me to suck in the filter minder on my 38r.

thats cuz they are not hydrophobic like donaldsons...

live life full throttle

PSD POWER007 · Mar 3, 2015

lincolnlocker said:
thats cuz they are not hydrophobic like donaldsons...

live life full throttle

Yes sir! Another reason why I only run the Donaldson now.

Magnum PD · Mar 3, 2015

Just don't see any advantage going away from the 6637.

lincolnlocker · Mar 3, 2015

Magnum PD said:
Just don't see any advantage going away from the 6637.

nada dam one either... but like mentioned, go with the donaldson filter...

live life full throttle

Magnum PD · Mar 3, 2015

You got a big head now because of the 6.7 intake thread? LOL

lincolnlocker · Mar 3, 2015

Magnum PD said:
You got a big head now because of the 6.7 intake thread? LOL

no..why do you say that?

live life full throttle

Magnum PD · Mar 3, 2015

Got a lot of feedback and people like it. Giving you hard time.

lincolnlocker · Mar 3, 2015

Magnum PD said:
Got a lot of feedback and people like it. Giving you hard time.

ahhh 10-4.. no. im just glad it works like i hoped and that it works for others as well.. nothing worse then dusting a motor...

live life full throttle

bigfords · Mar 4, 2015

White Buffalo said:
I swap back and forth between the Ford AIS and 6637 on the F-250. Will throw the AIS w/fender sleeve on when towing our 5th wheel long distances to keep things quieter in the cab. Otherwise I use the 6637. On the Excursion I just leave the 6637 on there. Might try the S&B filter someday. Used oil analysis with the 6637 comes back with silicon under 10 ppm so filtration is great. For me it comes down to the difference in noise levels when towing long distances..........

I second this. I have the AIS in when towing and most daily driving since I like my truck quiet in the cab. Put the 6637 in when I need or want most air flow. (Although I have modified my AIS air box for more airflow and have not sucked the filter minder closed yet, even with a 38-40 psi pull with a 38R)

Austen · Mar 4, 2015

6637 all the way. It is supposed to be the noisiest intake but the noise doesn't bother me.

The guy that had my truck prior put a K&N intake system on it (luckily it hadn't been on that long) so I sold the K&N on CL and swapped the 6637 on the ducting. Works great.

I agree, I've never been a fan of cone filters on anything either but it's just personal preference.