mandrewlt250r

So can anyone tell me roughly how much horse power I would gain if I added k&n filters on my E55? I heard about 35 to 40 is that right? thanks guys

Peter_02AMG

Zero gain, if I can get 35Hp from a K&N I wouldn't need to paid over 20K for SC & exhaust.

Save your $80 or you be paying more later for new Mass air sensor..

saintz

Just out of curiosity, where did you hear that?

I think 5 hp tops with a filter, probably more like 2 or 3.

armaniE55

+1 more like 2 or 3...K&N is a great filter most users don't understand them well so they always fault the MAF.

i,e popping them right into your car without wiping them down and letting them sit out in the sun for a bit and most importantly not cleaning them correctly and letting them dry correctly is another issue. I always pop in my paper filters for a day when cleaning my K&N's and never had an issue. and this going back since 1999

armaniE55

Good Read...

https://mbworld.org/forums/c32-amg-c...dent-dyno.html

Armani

MR888

35-40 lol, get some cone filters, I got some off ebay and feel a noticeable difference.

mandrewlt250r

The guy behind the counter at the auto parts store told me this.

desired_speeds

Sounds like he was trying to make a sale.

saintz

There are cars where a bad intake system is used intentionally to limit the motor (think the old Camaros where they choked a Corvette motor down with a restrictive filter and exhaust so it wouldn't compete with a Vette). On cars such as these, you might actually make that type of power.

The E55 AMG is not one of these cars. The stock filters are marginally restrictive, but to the tune of a few hp compared to K&N. I'm having a hard time picking an easier and cheaper mod, however. Just don't expect magic.