6637Mod
Thread Starter
|
New User
Joined: Aug 2010
Posts: 9
Likes: 0
6637Mod
I need help... I am trying to find the 6637 mod kit from NAPA
I ordered what I thought was right and what came on was a Pro Fab Intake kit part # 9922. Is this right? The intake is made by Spectre.
The box says HP rating 650 and cfm rating 900.
Please help me get the right stuff if this is not it
Thanks Jason
.
I ordered what I thought was right and what came on was a Pro Fab Intake kit part # 9922. Is this right? The intake is made by Spectre.
The box says HP rating 650 and cfm rating 900.
Please help me get the right stuff if this is not it
Thanks Jason
.
Hotshot
Joined: Jul 2003
Posts: 12,177
Likes: 40
From: Newport, WA
Correct. The kits are all aftermarket places like Tymar or Riffraff that use a 6637 or similar filter and other parts to make an intake kit.
PREMIUM SPONSOR
Joined: Feb 2009
Posts: 6,037
Likes: 73
Spectre 9922 Spectre Cold Air Intake Systems
Here is the type kit people mean when referring to a '6637 kit'.
Riffraff Diesel: RDP 6637 Filter Kit
The p/n 6637 is the Napa version of the filter, but the same manufacturer makes this filter under Napa/Wix, Baldwin, Luber-finer, and Donaldson names.
Trending Topics
Senior User
Joined: Dec 2008
Posts: 470
Likes: 0
From: independence,mo
the easiest way to do this mod is to give clay a call, if you want to do it yourself get a 6637 filter, 4" tubing, clamp, filter cover. good luck and let us know
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!
Joe Kucinski
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!
Michael S. Palmer
The Best F-150 Deal of Every Trim Level (XL through Raptor)
Joe Kucinski
Thread Starter
|
New User
Joined: Aug 2010
Posts: 9
Likes: 0
Has anyone used this Spectre kit? I am afraid I might be stuck with it as I did a special order at Napa thinking it was the 6637 kit. Do u think there will be ant performance difference? I am going to call maps in the morning and see if they will take it back... lessons learned... call clay first... lol.
Elder User
Joined: Dec 2002
Posts: 797
Likes: 1
From: UT
I'm doing my "6637" mod a little different. I'm going to use a K&N filter instead. I have had good luck with them and I like the idea of cloth over paper material. Part # RD-1460 is very close in size(slightly smaller) $50. Part # 22-8022PK for the pre-filter $28. I think it will work good.
RD-1460 - K&N Universal Air Filters, Universal Air Filter
RD-1460 - K&N Universal Air Filters, Universal Air Filter
Posting Guru
Joined: Aug 2007
Posts: 1,317
Likes: 0
From: Auburn, Wa
That's the K/N That replaces the stock Air Filter and it has more to do with the stock air box not sealing correctly with the that particular filter.
Elder User
Joined: Dec 2002
Posts: 797
Likes: 1
From: UT
I always grease the sealing lip of my filters and have had great luck with them. On bikes and quads at the sand dunes this is essential or sand will go through any filter. Just my $.02 though.
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
