z_light11
New member
I just installed the HMF exhaust on my 2015 F3-S and did a quick sound clip so everyone could hear what it sounds like. I recorded the video with my phone so the sound probably isn't professional quality but you will get the idea of what it sounds like. The smoke at the end of the video is normal. HMF sends a card saying the exhaust may smoke for the first hour of use due to the ceramic coating curing. Since the HMF system also deletes the cat, I did install the Big City Thunder Baffle in this pipe to help with back pressure. On a test ride I didn't experience any popping on deceleration. Overall, I'm very happy with how this HMF pipe sounds. Plus it looks so much better than stock.
I really liked the Lamonster set-up I had on before this. I just couldn't get over the stock muffler and how awful (in my opinion) it looks.
I really liked the Lamonster set-up I had on before this. I just couldn't get over the stock muffler and how awful (in my opinion) it looks.