Thanks for the review. I ordered mine a few days ago and I am anxiously awaiting it. I like that fact that it's not another large can slapped on the side like so many are. And as we know, the price is right.
Looks good Blue!
Looks good Blue!
My review of the Coffman's Exhaust
3
So I finally had some time to install my Coffman's slip on exhaust tonight. Install was very straight forward. I already had the stock one off and I've been riding around without any exhaust so putting this on was easy enough.
First let me talk about the product itself.
It's definitely a quality piece - very nicely finished in a matte black. The mandrel bend in the tube is perfect and the hardware and clamps supplied are all excellent.
The fit of the slip on is exactly right and really the only beef I have is that you have to drill a hole and put a rivet into your stock exhaust stub in order to install it firmly.
I considered using a stainless screw or something along those lines and just clamping it down hard. I also thought of using teflon tape under the slip on (saw it on another video install of a slip, can't remember which one) but in the end I figured I likely would only ever take it off again if I was selling the bike and putting the stock one back on. I decided to have mine centered with the 'R3' in the bracket they provided instead of more upright. Turned out really well.
Now for the sound part which I'm sure you're all wondering about.
I had the db killer taken out right away - no point since I wanted it to be as loud as possible.
After having the bike without any exhaust for about a week and adding the slip on exhaust, I have to say that I didn't notice any difference at idle at all. Same low, burble. This is not a bad thing at all as I liked the low burble at idle without the stock exhaust.
Riding it though was a whole different ball game.
The sound while riding is amazing. It has a much more refined sound but still louder than stock. I noticed that a tiny bit of low end torque was lost when I took off the stock exhaust but with the Coffman's slip on that returned but the rev happy throttle response was not lost fortunately.
I have to say the only beef I truly have is the cover they give you isn't really bent perfectly for the bike. It does fit but not great. Let me explain - it takes a bit of fiddling with the longer screws they give you to line it up with the stock fairing and even then, its one of those 'press hard' to install affairs. Not a huge struggle but I think they could have bent the tabs better to line them up with the holes a bit better. Once its on there, there are no issues at all with clearance or anything but just a minor annoyance.
Overall, for the price, it was the most inexpensive slip on you can buy and I think its definitely one of the most understated but still attractive ones out there.
Took a few quick pics with my cell phone as I was too lazy to move the bike and get better pics but you get the idea.
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First let me talk about the product itself.
It's definitely a quality piece - very nicely finished in a matte black. The mandrel bend in the tube is perfect and the hardware and clamps supplied are all excellent.
The fit of the slip on is exactly right and really the only beef I have is that you have to drill a hole and put a rivet into your stock exhaust stub in order to install it firmly.
I considered using a stainless screw or something along those lines and just clamping it down hard. I also thought of using teflon tape under the slip on (saw it on another video install of a slip, can't remember which one) but in the end I figured I likely would only ever take it off again if I was selling the bike and putting the stock one back on. I decided to have mine centered with the 'R3' in the bracket they provided instead of more upright. Turned out really well.
Now for the sound part which I'm sure you're all wondering about.
I had the db killer taken out right away - no point since I wanted it to be as loud as possible.
After having the bike without any exhaust for about a week and adding the slip on exhaust, I have to say that I didn't notice any difference at idle at all. Same low, burble. This is not a bad thing at all as I liked the low burble at idle without the stock exhaust.
Riding it though was a whole different ball game.
The sound while riding is amazing. It has a much more refined sound but still louder than stock. I noticed that a tiny bit of low end torque was lost when I took off the stock exhaust but with the Coffman's slip on that returned but the rev happy throttle response was not lost fortunately.
I have to say the only beef I truly have is the cover they give you isn't really bent perfectly for the bike. It does fit but not great. Let me explain - it takes a bit of fiddling with the longer screws they give you to line it up with the stock fairing and even then, its one of those 'press hard' to install affairs. Not a huge struggle but I think they could have bent the tabs better to line them up with the holes a bit better. Once its on there, there are no issues at all with clearance or anything but just a minor annoyance.
Overall, for the price, it was the most inexpensive slip on you can buy and I think its definitely one of the most understated but still attractive ones out there.
Took a few quick pics with my cell phone as I was too lazy to move the bike and get better pics but you get the idea.
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- I have not noticed any loss of power at any rpm range
- I don't know about the PCV / block off plate but I would guess its not needed since the stock exhaust is just another baffle and the slip on here is just a straight pipe basically
- I don't see how this would change the A/F ratio; a mod to the air box would do that though
- I don't think there will be any long term issues with this mod other than increasing your grin factor
How about any popping? Also i saw a video of the installation and the person doing it said he smelled a lot more fumes coming out with the coffman exhaust compared to stock so it got me thinking.. If its good or bad...- I have not noticed any loss of power at any rpm range
- I don't know about the PCV / block off plate but I would guess its not needed since the stock exhaust is just another baffle and the slip on here is just a straight pipe basically
- I don't see how this would change the A/F ratio; a mod to the air box would do that though
- I don't think there will be any long term issues with this mod other than increasing your grin factor![]()
1 - 20 of 36 Posts
