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Old December 7th, 2017, 06:38 AM   #11
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I went with an Arrow in the matte black color. I ordered it direct from Arrow in Italy and the price was very reasonable. It has a removable baffle. I found it too loud with the baffle out, too quiet with it in. I ordered another baffle from Arrow to experiment with. That was pretty pricey, but I was afraid of messing things up if I started hacking into it. I drilled a new set of holes in it and created my Goldilocks dB killer. I also ditched the flapper valve and got a replacement mid pipe with the holes welded up.

I think the bike sounds pretty good. Itís not so loud that I piss my neighbors off when I leave for work at 5:45, but has a much deeper growl than stock. Gotta love that sound ducs make under load.
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Old December 8th, 2017, 07:49 PM   #12
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I Ride: '16 Hyperstrada 939
Ended up going with the GPR. Won't be here til after the 1st so I'll update how I like it once it arrives. If I end up not liking it it'll be for sale next month and I'll save up for an Arrow or Termi next year lol.
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Old December 9th, 2017, 10:15 AM   #13
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I Ride: 2013 White Strada
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Originally Posted by novaryan View Post
The Akra is going to be 4 times as loud as stock and adds less than one horsepower. Look at the dB rating!! Boo... If you ask me the Ducati engineers did a damn good job if aftermarket can't squeak out even one more HP!

I'd rather save my money on a retune to make the bike less jerky and improve fueling. If that is even possible.
Your data on the MiG is inaccurate...You may be quoting stats from Akra without cat-delete, which is just silly if you're going to put a pipe on for performance. This is how it acts with cat-delete:

- WITH DB Killer, little more bass/boom down low and throatier at full twist. Never removed DB killer because, as noted, stocker was loud enough and I don't enjoy pissing everyone else off with an exhaust that pops fillings out of your teeth.
- Charts I saw said 3+ HP; 5 with the full system. Hard to say as I have a tuner on.
- Definitely breathes and rev's better than stock. Probably little better with DB killer removed.
- Weight savings is probably biggest plus. It's easily 1/3 weight of stocker; maybe 5 lbs savings. That's significant on a 399 lb dry bike. Combine that with Lithium battery and removing or replacing useless plastic, you're talking 5% weight reduction.

Also, a basic tune should include a filter upgrade and free flowing exhaust. The ECU doesn't even care if you only change one of these.
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Old December 9th, 2017, 06:29 PM   #14
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I Ride: 2013 hypermotard/hyperstrada, 2005 zx6r, drz125, crf50 crf70
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Originally Posted by thePUNISHER View Post
Ended up going with the GPR. Won't be here til after the 1st so I'll update how I like it once it arrives. If I end up not liking it it'll be for sale next month and I'll save up for an Arrow or Termi next year lol.
Fantastic! Some side by side pics would be nice when you get cracking in to it. I feel that side by side pics help others that are looking to make a decision, showing what the physical differences are in relation to the oem. Plus, making a new post with "GPR vs OEM hypermotard"(or something like that) will allow people to Google search and see your comparison/pics. I'm excited to see what you think.
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Old December 9th, 2017, 09:42 PM   #15
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I Ride: 16 Honda CRF250l, 2016 Hyperstada 939
Quote:
Originally Posted by gatdammit View Post
Your data on the MiG is inaccurate...You may be quoting stats from Akra without cat-delete, which is just silly if you're going to put a pipe on for performance. This is how it acts with cat-delete:

- WITH DB Killer, little more bass/boom down low and throatier at full twist. Never removed DB killer because, as noted, stocker was loud enough and I don't enjoy pissing everyone else off with an exhaust that pops fillings out of your teeth.
- Charts I saw said 3+ HP; 5 with the full system. Hard to say as I have a tuner on.
- Definitely breathes and rev's better than stock. Probably little better with DB killer removed.
- Weight savings is probably biggest plus. It's easily 1/3 weight of stocker; maybe 5 lbs savings. That's significant on a 399 lb dry bike. Combine that with Lithium battery and removing or replacing useless plastic, you're talking 5% weight reduction.

Also, a basic tune should include a filter upgrade and free flowing exhaust. The ECU doesn't even care if you only change one of these.
Interesting on the performance gain #'s. Ducati estimates with the full Termi, air box mod and remap about a 5% hp gain. Or 6 hp. 5 hp for the full Akra sounds about right is you do the airbox and remap.
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Old December 10th, 2017, 07:40 PM   #16
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Quote:
Originally Posted by gatdammit View Post
Your data on the MiG is inaccurate...You may be quoting stats from Akra without cat-delete, which is just silly if you're going to put a pipe on for performance. This is how it acts with cat-delete:

- WITH DB Killer, little more bass/boom down low and throatier at full twist. Never removed DB killer because, as noted, stocker was loud enough and I don't enjoy pissing everyone else off with an exhaust that pops fillings out of your teeth.
- Charts I saw said 3+ HP; 5 with the full system. Hard to say as I have a tuner on.
- Definitely breathes and rev's better than stock. Probably little better with DB killer removed.
- Weight savings is probably biggest plus. It's easily 1/3 weight of stocker; maybe 5 lbs savings. That's significant on a 399 lb dry bike. Combine that with Lithium battery and removing or replacing useless plastic, you're talking 5% weight reduction.

Also, a basic tune should include a filter upgrade and free flowing exhaust. The ECU doesn't even care if you only change one of these.
The data was listed on the links provided in the thread. I don't own the data.
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Old December 15th, 2017, 06:38 AM   #17
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only a day with the akra:

weight difference is more than noticeable, (like half..)
bike seems to be more responsible to the gas, i have like 5-7km/h more top speed
better sound, and a little bit louder, but nothing too loud (with db killer on)


need to get use to the smell without the kat...
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Old December 15th, 2017, 10:37 AM   #18
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I Ride: '16 Hyperstrada 939
So my GPR arrived 2 days ago(3 weeks ahead of schedule!) however my wife delivered our new baby 2 days ago as well! So as you can imagine it'll probably be a little while before I can get to installing the new exhaust. The few things I did notice by just pulling it out of the box, it seems very well made, definitely smaller/lighter than stock(probably by quite a bit), having instructions in Italian could be an issue but it seems pretty straight forward so I doubt it'll be a problem. So, with the new baby and Christmas just around the corner(hosting the family dinner at our house this year), my birthday just after Christmas and my wifes birthday the first week of January, well...it might be a few weeks before I get to the install. I will take some before/after pix and videos though(if I remember to lol).
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Old October 7th, 2018, 12:20 PM   #19
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I Ride: '13 White Hyperstrada
Hi Punisher, this is your friendly reminder

I can get a good deal on a GPR can here so if you can share your experiences thatíd be great!

Thanks, JamesC


Sent from my iPhone using Tapatalk
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Old October 8th, 2018, 10:05 PM   #20
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I bought a real Project SC S1 slip-on with the extra Cata delete mid pipe. Got it used in great condition for $790.00. Paired it with the SC air filter as well. I regretted it at first because it was too loud. When in sport mode it does sound amazing though. I dare say the best sounding one. But its just too loud, hard to use sena with it. As I couldnt find a db killer for it I had a custom one made for it. Its more tolerable now. And its full titanium/carbon so its super light. I have had good results with gas mileage as well without any tunes or ecu flashes, just straight plug and play. Did a 700km in 24 hours tour this summer and went 265kms and the low fuel light hadnt come on yet. Usually with just a slip on you dont need to change the filter but its a good idea.
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