6637 filter different application
Thread Starter
|
Posting Guru
Joined: Jun 2005
Posts: 1,554
Likes: 0
6637 filter different application
as you guys know i bought a gmc 2500hd with a 8.1L thinking about doing the 6637 air filter on it how do you guys think the filter would be matched with a 496ci big block.
Thread Starter
|
Posting Guru
Joined: Jun 2005
Posts: 1,554
Likes: 0
that's kinda what i was thinking all the guys on the Chevy forum are running k&n's but we all know that they don't filter as well. the intake tube looks to be 4 inch with the mass airflow right before the filter box, looks like if i took the stock box off i could clamp the 6637 right onto the mass airflow meter.
Thread Starter
|
Posting Guru
Joined: Jun 2005
Posts: 1,554
Likes: 0
well doing some poking around on the wix website according to wix the stock filter for my truck part # 42487 flows 320 cfm wix part #46637 flows 425 cfm. so according to that it should be a nice upgrade. at almost 1/3 improvement in flow.
