[OneBigD]

As far as the filter goes, is the NAPA 6637 the largest one that I should get and/or will fit? I know this is essentially the same filter as the TYMAR intake, but is it possible to go any larger? Will the NAPA 2790 filter fit and provide any greater benefit?

6637:

Part Number: 46637
UPC Number: 765809466371
Principal Application: Air Filter Assembly for Various Equipment.
All Applications
Style: Air Filter
Service: Air
Media: Paper
Height: 12.380
Outer Diameter: 8.500
Inner Diameter Top: Closed
Inner Diameter Bottom: 4.000
Ends: Metal
CFM: 425



2790:

Part Number: 42790
UPC Number: 765809427907
Principal Application: Donaldson Disposable Housing
All Applications
Style: Air Filter
Service: Air
Height: 11.880
Outer Diameter: 10.500
Inner Diameter Top: Closed
Inner Diameter Bottom: 4.000
Ends: Plastic
CFM: 680