When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I get some very minor drone a little past 2k, but other than that nothing. I will say the the LM1's are pretty annoying on the highway though, it sounds like a machine gun.
I've got the LM2's with a mac off road H and if i play with the throttle on the highway there's a sweet spot that gives some drone but it is not like anything from a flowmaster. And like I said you've gotta get it just right. . . i'm not sure what the rpm's are but its not bad at all