| Author | Message | ||
     Ride4life |
Hi, anyone out there interested in looking to get a custom HMF DB killer fabricated? I find the exhaust too loud and have thought about approaching a custom shop to fab one up given HMF doesn't offer one for this model. Problem is I don't have a lot of options here in southern CT but I'm betting a lot of you out there might...and a group buy might save us some money. Let me know...Peter | ||
| Bigevildoer |
Too loud? Really? Out of the aftermarket exhausts I've heard in person, I like this one the most! | ||
| Mountainstorm |
It was too loud for me so I sold mine and went back to stock. I was told by HMF that they feel a DB killer would be too restrictive. But maybe an aftermarket part would work. Go for it. | ||
| Zane_t |
I like the way my HMF muffler sounds, however, if I did get a fixit ticket, I would get one of those baffles the Harley guys use in their straight pipes and install it in the tip, which would probably silence it. | ||
| Tbones1125r |
I have an HMF pipe on mine here in Fairfield Cty Connecticut. IMO, it's not loud at all. I've ridden past numerous LEO's at various RPM's and they never put down their doughnut. I researched all of the 1125r pipes before I bought this one. The primary reason i picked HMF was for the performance/Db ratio. I've heard the D&D and FMF pipes...THOSE are loud...I guess everything is relative. The stocker is fugly and weighs a ton. If you have a good helmet, get yourself some foam earplugs...makes a world of difference on longer rides! | ||
| Bigevildoer |
Gotta agree with Tbones here.... Had a D&D on for a week before it absolutely *HAD* to go. The local LEOs were nice and let me off with a warning, making a note on their computer system though... if any other LEOs pulled me over again 3 days after my warning they'd give me a ticket. The D&D is just stupid loud. It was literally painful to ride with it on for over an hour, even with ear plugs. LOVE the sound of the HMF though! The Jardine is terribly raspy, so no go there either.. | ||
| Ride4life |
@Big, yeah man, I must be getting old. I loved the way the Termi's sounded on my recently sold 848 as they were the perfect balance of richness and volume. HMF, as a single, is too damn loud for my taste but there's no way in hell the stocker is going back on. @Zane, got a line on a part number or description for those Harley silencers? | ||
| Tbones1125r |
Dude - You might as well sell the HMF and get the FMF and use the DB reducers that come with it rather than retro fit ANY HD part to a great bike like the 1125r...Just a thought... | ||
| Jdugger |
The FMF isn't exactly quiet. At full chat, it's obnoxiously loud IMHO. Not a pipe I'd want on a street bike. I don't mind it on my track bike so much, but it really is quite loud indeed. | ||
| Zane_t |
The baffles the "Harley Guys" use that I mentioned are strictly aftermarket and are very simple inserts that stick into the end of the pipe. If they'll quiet down straight pipes I imagine they'll do a great job of silencing a race muffler. Of course, I would only use one for a temporary fix to resolve a fixit ticket. So far, I just haven't had any problems with the local L.E.O.'s, mostly because they're too busy ticketing the ones with no mufflers or baffles. | ||
| Craiga |
Sell the HMF and buy a Barker w/ the most restrictive quiet core? I went from a D&D to the Barker, it's less than 1/2 the noise and that's without the CQ. Barker's also has awesome customer support/service. | ||
| Crazyhawk99 |
Put me on the "I have an HMF and it's too loud" list. After installing mine and riding the bike, I only put maybe 50 miles on it and parked the bike. It is entirely too loud in my opinion. I am "baffled" that this is literally marketed by HMF as their "Street Series" slip-on and nowhere does it say "for off-road or race use only". I messed around with trying to quiet it with a generic baffle, but it made no significant difference and there wasn't an easy way to secure it in the can. I too have heard great things about the Barker and his customer service. | ||
| Bigevildoer |
@ Crazy & Ride4.. Have you guys tried ear plugs at all? I rode with these in when I had my D&D - they killed half the noise - worked amazingly well. http://www.earplugsonline.com/ They're reminiscent of blue sticky tack in consistency. Squeeze and roll 'em a bit and stuff 'em in your ear. Then smoosh it around to make a good seal. Cuts just about 100% of any wind noise too. | ||
| Crazyhawk99 |
Bige, It isn't me that I am worried about. Personally, I like the sound of the HMF, just not so much the volume. As I have aged/matured as a rider, I have become more sensitive to the impact we have on the public. While I think a pipe that lets you hear the engine is fine, one that makes other people stop what they are doing and look around to see where the sound/noise is coming from has a negative impact on public perception of motorcyclist. It is just a matter of time (IMO) before these really loud exhausts make the EPA crack down nationwide with extremely restrictive limits on sound allowed. | ||
| Bob_thompson |
One more time guys and then I'm gonna shut up about quieting down a loud pipe. The units (inserts) below have been designed by racing engineers to quiet down a system, usually straight headers where noise restrictions apply, as in urban racing tracks. There is virtually no reduction in top end H.P. and some enhancement in mid-range. I have fabricated my own as they are usually made for larger diameter pipes but some do fit existing systems. THEY DO WORK AS INTENDED. My slip on is using the cone type right now in a straight through fiberglass muffler and is very tolerable for street use. And with a K&N, Eriks race ECM, and this muffler system its the best this 1125R has ever been. One note is if you fabricate your own cone type you should lengthen the cone considerably in smaller diameter pipes to have enough cross sectional area and air/exhaust flow to maintain H.P. Try one and don't look back. Enjoy a great sounding pipe and great H.P. Bob "www.carchemistry.com" "www.afabcorp.com/AFCO_Dynatech_USbrake/merchant.mv c?Screen=CTGY&Store_Code=Dynatech&Category_Code=Mu fflers" | ||
| Jdugger |
> make the EPA crack down nationwide with extremely restrictive limits on sound allowed Despite the questionable constitutionality of the EPA's legal authority to do anything it does, this has already been done. The EPA sets very specific limits for the sound pressure levels of vehicles, and includes drive-by testing procedures manufacturers must pass to sell vehicles in the US. Not having an enforcement regime of its own, the EPA depends on local enforcement, which has largely been indifferent to vehicles out of compliance with noise emissions standards. But do a little research, and you will find some states are cracking down. On Long Island, in New York, for example, motorcyclists with excessively loud exhausts are now actively ticketed. There have even been a couple of cases of stock bikes being questioned -- after all, in stock trim our 1125rs make a fair bit of racket, and not just exhaust note, but gear and mechanical clatter that's not absorbed by a fairing. In general, I think we can expect the standards set for noise and exhaust emissions to continue to become increasingly more restrictive. | ||
| Ride4life |
@Bob, thanks much. The cones look good/easy to work with but it seems the car chemistry silencers would have greater noise reduction. I am confused though which product line I should try for the HMF. Any guidance would be much appreciated. | ||
| Bob_thompson |
Peter, you are absolutely correct but with slightly more back pressure also. There are no free lunches but both allow much more flow then anything else on the market and exactly why racers use them. There is some more restriction with the CC units and if you do like I suggest and lengthen the cones for more cross section of open holes, back pressure is diminished while still quieting the exhaust note. Below are two short videos of my slip on system using a cone in a straight through fiberglass packed muffler. Much of the sound at speed is intake noise with an open inner air box and K&N. "www.youtube.com/watch?v=ph0VmvwNYRc" "www.youtube.com/watch?v=rD14y2EVCw4" | ||
| Ride4life |
Man Bob, what a great sounding exhaust note. Plan on giving the cone insert a try when I get some time. Thanks again! | ||
| Bob_thompson |
Glad to share Peter. Gotta love BadWeb! | ||
| Fatbuoy |
Hi Bob, I happened across your post in the thread regarding quieting an HMF muffler on an 1125R. I would love to do this to mine. You had included two links. The second was for the cone type (what you used), but the link is no longer operational, and in searching through the website I did not see to what you were referencing. Here is the original link below. Any help, or insight, would be most appreciated! |
