Akrapovic downpipes ? 1250GS

[stick]

I had them on mine and while they did seem to release some of the pops and burbles a bit more, at idle they were very much the same. I had the valved versions though, so I would have to assume that they were closed at idle and opened at full chat, so maybe there you would notice more of a difference. I actually ended up taking them off and selling them because I didn't think they were worth the overall cost. That being said, I never had the bike mapped after I put them on so that might make more of a difference.

A re map would be better as I never had the pops or burbles you mentioned as the fuelling was altered to allow the ecu to engage with the new map and eliminate the fore mentioned . A bike with the correct fuelling alterations to an altered system is always the best . The gs runs lean from the factory to keep the euro rats happy so a better fuelled map is worth the expense

 

[Spareparts]

If anyone thinks chasing, say, +10hp on a GS is important or valuable enough to justify the cost… I’d suggest you have the wrong bike in the first place.

Having more power is always going to be nice. There is nothing wrong in having more power. But I just don’t think the expense, expense of warranty or hassle of mitigating detection by ADs, is worth it… on the GS that is. It is a torquey adv bike that excels running at 3-7/10ths, not at 10/10ths when the extra hp really kicks in. Any additional low down torque is handy, but the bike already puts out over 100lbsft with short gearing, and there are very very very few situations where the bike is found wanting for more torque down low.

What the GS needs is a 7th gear! Of course, I’m not going to complain getting the R13 with more horses either, but it isn’t the USP.

 

[APE]

If anyone thinks chasing, say, +10hp on a GS is important or valuable enough to justify the cost… I’d suggest you have the wrong bike in the first place.

Having more power is always going to be nice. There is nothing wrong in having more power. But I just don’t think the expense, expense of warranty or hassle of mitigating detection by ADs, is worth it… on the GS that is. It is a torquey adv bike that excels running at 3-7/10ths, not at 10/10ths when the extra hp really kicks in. Any additional low down torque is handy, but the bike already puts out over 100lbsft with short gearing, and there are very very very few situations where the bike is found wanting for more torque down low.

What the GS needs is a 7th gear! Of course, I’m not going to complain getting the R13 with more horses either, but it isn’t the USP.

I think this is true if you swap the exhaust without the remap. The argument is a remapping provides much improved throttle response as well as an increase in torque (let’s ignore the hike in peak power for this discussion). That’s something you would notice and appreciate. This is the theory - I haven’t pulled the trigger yet on the remap so interested to hear other views. It’s over £400 with no resale value as it can only be used on one bike. I’d also consider downpipes but not at full retail…

 

[stick]

If anyone thinks chasing, say, +10hp on a GS is important or valuable enough to justify the cost… I’d suggest you have the wrong bike in the first place.

Having more power is always going to be nice. There is nothing wrong in having more power. But I just don’t think the expense, expense of warranty or hassle of mitigating detection by ADs, is worth it… on the GS that is. It is a torquey adv bike that excels running at 3-7/10ths, not at 10/10ths when the extra hp really kicks in. Any additional low down torque is handy, but the bike already puts out over 100lbsft with short gearing, and there are very very very few situations where the bike is found wanting for more torque down low.

What the GS needs is a 7th gear! Of course, I’m not going to complain getting the R13 with more horses either, but it isn’t the USP.

Sort of agree , but think the point has been missed. I just came back fro a V4 Multi , that had loads of power , but was hard work. The gains I feel you get with the Gs gives it more rideable , smoother power , a bit more low down.
I was in the Pyrenees la few weks ago without the tune on and the bike needed a bit more pull ( for me) as it struggled wrapped in euro restrictions on the twisty higher roads , with the pipe the remap you get ack to basics on how a bike is designed to run , not to please Greta.
The last GS I had was as this one is now and I could feel the difference and hence the reason to do the upgrade to gain the power that is there but restricted.
Extra bhp is not the goal its the smoothness of the power and the additional torque. The bm is great but can be better. The Bm is the right bike but with this small upgrade its better. We spend say 18 to 23 k on a bike so a 1.5k upgrade is small change.
We all have different angles on the merits of tune , if you like your bike standard fine , I dont and wish to tune . I dont wish to change as have been though the faster more powerfull (x3 Multi) bike but missed the torgue of the BM , with this upgrade you do not loose but gain torque .
Dont get the extra gear as 135/140 on a gs if fast enough , if thats the case then you need a new bike , say an R1 (for the record the Multi was unstable at 150) be interesting to see how the R13 will be as the Beta testers keep us updated.

 

[Spareparts]

Dont get the extra gear as 135/140 on a gs if fast enough , if thats the case then you need a new bike , say an R1 (for the record the Multi was unstable at 150) be interesting to see how the R13 will be as the Beta testers keep us updated.

The extra 7th gear is not for Vmax top speed. It is for more relaxed, lower rpm, cruising at normal speeds - especially on boring motorways etc. The final drive ratio from the RS/RT is excellent when in 6th gear for example, but it comes at the expense of the short gearing that is fun on the GS at lower speeds.

 

[malcopopolo]

Highly recommend BHP for a remap.
Fuelling is sublime.
Another benefit is that in theory the bike should run slightly cooler if the air, fuel, ratio is correct.
Less chance of burnt valves or other nasties.

 

[APE]

Thanks for the recommendation. For now I’m going to stick with just the end can. The engine is so much stronger than the twin cam I had previously it should be enough.