slagg

This particular nano-fiber Amsoil EA air filter will flow over 1500CFM with minimal restriction, and it is the largest nano-fiber filter available.
The 4510 has a 4.5 inch ID opening which is the same as the intake tube.
So, what I'm using to install it is a 4" PVC coupler, 4" PVC has a 4.0 inch inside diameter and a 4.5 outside diameter, it will fit snugly inside the filter and intake tube.
Besides putting it together all I'm going to do is hit the PVC with some black barbecue paint. I also bought a pre-filter for it, the 4510 takes a EAPF20. I would recommend using one to keep your filter element CLEAN, it will extend the life and catch dust.. dirt.. and mud. That way your filter lasts you for years.

http://www.amsoil.com/StoreFront/eaau.aspx
If you want the Amsoil filter pay for a preferred customer membership ($10) and order it along with a pre-filter. Or can also order the filter from the K&N website (RF-1024), it's the same filter but it will have red filter media instead of blue and it won't say Amsoil on it. The pre-filter however is cheaper from Amsoil ($18.99 vs $35) so you might as well get it at one place.

Pictures to follow.

The 4510 will require a larger clamp when inserted over a 4" coupler.
New clamp at Lowes was $1.83

#72 clamp fits perfectly.
The 4" coupler has a ridge on the inside of the fitting, I am going to take a dremel to it another day before I paint it. More pics to follow. Other than that it all goes together great.
I'm using a 2nd Gen intake tube and the stock clamp works fine, just unscrew the clamp until it reaches the last couple of notches.

When I installed mine I used ABS pipe. Its already black and it seems to be more flexible than PVC. One of the Lowe's in my area had it, but also most plumbing supply stores carry it.