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I see a lot of random post out there on specific drop in air filters, has there been any comparisons done? I am looking to replace my OEM with something that has better flow. Any options out there for BMS, AFE, Attack Blue, K&N etc? Would love some recommendations.
Last edited by diesel1218; May 7, 2022 at 09:24 AM.
I have done some research on this myself, including searching this forum. I doubt you can really go wrong with any of the brands you mentioned but I've seen a lot of recommendations on here for the Green Filter. I think I've decided to just replace the air filter rather than get an entire CAI.
Good luck https://greenfilter.com/store/7225
I'm a cheap old fart. I just get the GM Delco filter and be done with it. Unless you have the LT4, I don't see more air going into the engine because your filter is a nice color.
LOL, do you feel better throttle or anything with the BMS? That was my first choice before the reusable Attack Blue which is the way I am leaning.
sorry. My butt-dyno went out of calibration years ago. Probably all that competitive ***-sitting. I really couldn’t tell any difference.
these things tend to work best in combination. The BMS + Throttle controller + Soler Throttle body + canned tune, and not even my numb butt could ignore it.
I was going to get the attack blue but went with a whole new air intake to get rid of the ugly oem stuff. been happy with it.
my second choice was the bms filter.
For looks or just because, I like the AFE stuff I have. For cleanability and maybe a little bit of HP, I would use Attack Blue. Otherwise stick with the paper filters and change as recommended in owner's manual and specific usage. IMHO...
Factory air filters have to filter properly and reduce intake noise to meet noise regulations. Good after market filters can filter properly and allow more induction noise as they are not constrained by the same regulations as Gm. So it may be possible that a good aftermarket filter can help with a gain in power as well.
Factory air filters have to filter properly and reduce intake noise to meet noise regulations. Good after market filters can filter properly and allow more induction noise as they are not constrained by the same regulations as Gm. So it may be possible that a good aftermarket filter can help with a gain in power as well.
Is there a way to determine if the GM filter is the choke point? If it isn't, even if it can flow more air into the system, does it matter? IF the engine cannot use it, what does it matter? If the restriction is not at the filter, does it help?
Is there a way to determine if the GM filter is the choke point? If it isn't, even if it can flow more air into the system, does it matter? IF the engine cannot use it, what does it matter? If the restriction is not at the filter, does it help?
I don't know for sure but if a supercharger in a stock car can make more power by pushing more air than a better flowing filter might as well.
I don't know for sure but if a supercharger in a stock car can make more power by pushing more air than a better flowing filter might as well.
A supercharger is positive pressure. A less restrictive filter will not push air in. It just restricts less. However, if the engine needs 500 cfm and the stock filter flows 600 (just pulling out numbers for comparison), how will 700 cfm help? It helps only if the filter flows 400 and you put one on that flows 500 cfm, AFAIK
A supercharger is positive pressure. A less restrictive filter will not push air in. It just restricts less. However, if the engine needs 500 cfm and the stock filter flows 600 (just pulling out numbers for comparison), how will 700 cfm help? It helps only if the filter flows 400 and you put one on that flows 500 cfm, AFAIK
Someone with more mechanical knowledge than me will have to answer that.