AIS vs 6637
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Junior User
Joined: Jun 2007
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From: TN
AIS vs 6637
Alright I found the AIS for $198. Was wondering how much more air flow does the AIS have over the 6637 or other intake systems. I know the 6637 has like 450 cfm but can't find any numbers on the AIS.
Also is the 6637 louder than stock as well is the AIS any louder??
Also is the 6637 louder than stock as well is the AIS any louder??
Hotshot
Joined: Nov 2006
Posts: 11,286
Likes: 263
From: North of Greenville
The AIS, IIRC, is reportedly much quieter than the 6637, but I'm not sure how it compares with the stock unit. Probably not much different at all. Kwikkordead has run both, and you could always PM him and ask directly. I know he'd be glad to offer his insights.
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Junior User
Joined: Jun 2007
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From: TN
Does the 6637 fit directly on the OEM air hose intake. ANd rest on the factory box or what? I've seen the pictures on the mods link but can't figure out what the 6637 is resting on. What keeps it in place??
Is that a good price on the AIS as well??
Is that a good price on the AIS as well??
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
Yes it fits on the stock intake tube of the later trucks. Some of the early trucks require a 120* bend of 4" OD pipe to get it in position. When you take out the stock air box, there is just enough room to lay the 6637 in its place. It's held in place by its sheer size -- the hood just touches the end and holds it down. Some guys use a piece of 4" OD pipe anyway to couple it even on the later trucks -- mine is just mounted directly to the intake tube with no problems. If you scuff the neck of the filter with rough sandpaper or file, the tube has something to bite into and it won't come off.
Joe
Joe
Hotshot
Joined: Nov 2006
Posts: 11,286
Likes: 263
From: North of Greenville
If you fit it on the neck of the filter, also use a clamp for insurance - dirt is not the turbo's friend.
I use the short piece of 4" pipe for my transition, and you can see in my avatar how I even have to **** it up on the turbo side for the hood to close. Tight fit. No wobble.
I use the short piece of 4" pipe for my transition, and you can see in my avatar how I even have to **** it up on the turbo side for the hood to close. Tight fit. No wobble.
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Junior User
Joined: Jun 2007
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From: TN
Thank you Izzy.
I knew on the 6637 mod some guys with 99's had used a 4" pipe for an adapter.
Here's another question on the AIS instead of the foam sleeve why couldn't some body do the zoodad up front. I was thinking like 3 2" holes instead of one big one if I do the AIS.
I'm on several hunting forums like Avery and others and this place is FREAKING BUSY compared to them.
I knew on the 6637 mod some guys with 99's had used a 4" pipe for an adapter.
Here's another question on the AIS instead of the foam sleeve why couldn't some body do the zoodad up front. I was thinking like 3 2" holes instead of one big one if I do the AIS.
I'm on several hunting forums like Avery and others and this place is FREAKING BUSY compared to them.
Senior User
Joined: Apr 2006
Posts: 302
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From: New Jersey
Originally Posted by SILVER STROKE
Does the 6637 fit directly on the OEM air hose intake. ANd rest on the factory box or what? I've seen the pictures on the mods link but can't figure out what the 6637 is resting on. What keeps it in place??
Is that a good price on the AIS as well??
Is that a good price on the AIS as well??
http://www.puredieselpower.com/catal...eeve-p-76.html
Using the fender sleeve should give you a little more airflow and maybe extra EGT reductions. I was going to do the 6637 but after reading one of Kwik's post about the turbo drone when hauling heavy I decided against it. However you can't beat the price of the 6637 mod, it's WAY cheaper than the AIS. Either way you decide to go you are getting better filtration and airflow than the stock airbox/filter.
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Post Fiend
Joined: Feb 2007
Posts: 14,541
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From: Dallas-Ft. Worth
yeah, the 6637 + foil delete on the hot-side I/C tube = lots of whistle at highway speeds. But it also sounds good around town!!!
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Fleet Owner
Joined: Jun 2004
Posts: 25,090
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From: Rio Rico, AZ.
Originally Posted by Car_nut57
Still offering FTE members a discount code when you PM me. Discount applies to the whole site which includes AIS and Foam Sleeve.
Thanks Guys
Thanks Guys
Let me offer my recommendation for Car Nut if you want to purchase an AIS kit, guys.
Hook it, I'll pull it.
Joined: May 2007
Posts: 15,037
Likes: 4
From: Grand Lake, La.
Hey guys, time to get my feet wet. I installed my 6637 yesterday in my 01' PSD. Took me all of 40 mins. from start to finish. I used a 3" sch-40 dwv collar instead of the 4" pipe. Worked great, it set inside the filter and inside the hose to turbo. Clamped it down, GREAT FIT, and so easy. I am doing the $2,000 mod. 3 gadge kit ordered today. What a great place to learn about my truck. Thanks for all the stuff.
Rick
Rick
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Junior User
Joined: Jun 2007
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From: TN
Originally Posted by littledre1
but after reading one of Kwik's post about the turbo drone when hauling heavy I decided against it. However you can't beat the price of the 6637 mod, it's WAY cheaper than the AIS. Either way you decide to go you are getting better filtration and airflow than the stock airbox/filter.
So is the drone louder just under heavy hauling? I don't do that much hauling just driving. If the drone isn't that loud just normal conditions then I'll go with 6637.
Posting Guru
Joined: May 2006
Posts: 2,274
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From: Milroy, PA
Originally Posted by SILVER STROKE
So is the drone louder just under heavy hauling? I don't do that much hauling just driving. If the drone isn't that loud just normal conditions then I'll go with 6637.