BMS filter gain....
Thread Starter
Racer
Joined: Apr 2018
Posts: 274
Likes: 54
BMS filter gain....
so I’ll gain at least 15-25 hp with just this filter? Seems like a huge gain from just a filter. But I’ve also read that cai will gain you up to 40hp without tuning. That’s a huge improvement and these are actual proven numbers?
Team Owner
Joined: Mar 2005
Posts: 20,933
Likes: 905
From: salem OR
Yes they are the low flow filter GM uses on the 460 hp motor is reused on the 650 hp motor. A Halltech intake install takes a stock M7 right to 600 rwhp
Burning Brakes
Joined: Jan 2013
Posts: 796
Likes: 213
From: East of Baltimore MD
The BMS Air Filter should net you 10-15% more air flow. As to HP, the only way to know is via a dyno test.
The benefit should be better throttle response. I didn't get mine for the HP.
The benefit should be better throttle response. I didn't get mine for the HP.
Race Director
Joined: Nov 2012
Posts: 11,048
Likes: 3,390
Same with me. If i gained power cool, i did it because i already had the PTB and wanted that "extra" smoothness and response lol
Race Director
Joined: Nov 2012
Posts: 11,048
Likes: 3,390
I didn't get a before abd after dyno nor a before and after 1/4 run but SOTP feel, i would say yes it helped.
Plus i did notice the engine accelerates or revs up more freely or "faster". But maybe that's placebo.
Whatever benefit i got from it, then it was worth the 80 bucks for the filter. It's only 80 bucks.
And i have a '16 so i don't get any codes. 15-16 cars are more forgiving with these breather mods. 17+ and you can read all the threads of people having issues. So much for the newer models having all the bugs worked out lol
Plus i did notice the engine accelerates or revs up more freely or "faster". But maybe that's placebo.
Whatever benefit i got from it, then it was worth the 80 bucks for the filter. It's only 80 bucks.
And i have a '16 so i don't get any codes. 15-16 cars are more forgiving with these breather mods. 17+ and you can read all the threads of people having issues. So much for the newer models having all the bugs worked out lol
Le Mans Master
Joined: May 2010
Posts: 5,350
Likes: 2,408
I didn't get a before abd after dyno nor a before and after 1/4 run but SOTP feel, i would say yes it helped.
Plus i did notice the engine accelerates or revs up more freely or "faster". But maybe that's placebo.
Whatever benefit i got from it, then it was worth the 80 bucks for the filter. It's only 80 bucks.
And i have a '16 so i don't get any codes. 15-16 cars are more forgiving with these breather mods. 17+ and you can read all the threads of people having issues. So much for the newer models having all the bugs worked out lol
Plus i did notice the engine accelerates or revs up more freely or "faster". But maybe that's placebo.
Whatever benefit i got from it, then it was worth the 80 bucks for the filter. It's only 80 bucks.
And i have a '16 so i don't get any codes. 15-16 cars are more forgiving with these breather mods. 17+ and you can read all the threads of people having issues. So much for the newer models having all the bugs worked out lol
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Race Director
Joined: Nov 2012
Posts: 11,048
Likes: 3,390
Racer
Joined: Jul 2017
Posts: 320
Likes: 66
If you get a code all you have to do is switch one if not all back to stock and let it clear. Slight chance you’ll need to go to Auto Zone etc. and have them clear it for free, then drive it for maybe 50-100 miles for complete code clear. The code really isn’t an issue tbh.
Le Mans Master
Joined: May 2010
Posts: 5,350
Likes: 2,408
If you get a code all you have to do is switch one if not all back to stock and let it clear. Slight chance you’ll need to go to Auto Zone etc. and have them clear it for free, then drive it for maybe 50-100 miles for complete code clear. The code really isn’t an issue tbh.
Racer
Joined: Dec 2006
Posts: 287
Likes: 139
From: PNW US
I installed a BMS filter at the same time I got a Mamo TB. For some reason, my car never adjusted properly to that filter. Never threw a code, but just never seemed to idle properly. I left it on for over three months and just took it off last weekend and put the OEM filter back on. Car idle's perfectly again.