BMW S1000XR Euro 5 Gen 2 Remapping Customer Experience | BHP UK 

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Did you notice any change in fuel aconomy

I own the 22 XR M. There is no issue with the low end torque. This is the character of this i4 engine. Yes you can improve it by headers and mapping, but as it is, it is fine. This engine comes to life after 4K rpm, turns itself to a rocket after 6-7K rpm. Play with gears and keep it in rev range. I am not sure why everyone wants to make it a twin. This is the beauty and uniqueness of this engine and why I love it over twins or boxers.

@@ridingdreamer Everyone is making these changes (ECU flash, Tune etc) to their XR's and I don't see why? I'm looking at getting the 2021 XR M with only 4000 miles. I used to have the 2018 model in 2020 and I just miss it. I currently have the S1000RR but I prefer the XR. I know, I maybe crazy :)

@@EEEBA1 I agree, I have Brentune in my 22 M Sport. What I am saying is about people complaining about "low end torque" and "not able to ride" like complaints. It has enough low end torque and it is a character of the i4 engine.

@@ridingdreamer So tuning is not a must? Does that fancy chain that comes on the M model require any maintance?

@@EEEBA1 it adds some good grunt, but not a must. In my 5K miles in 5 months including ride in Smoky Mountains, I cleaned the M chain 4 times (like every 1K miles), still fine and no lag. I will get it adjusted in my 6K service.

We look forward to meeting you

Thanks Joel, ride safe!

You make a good point, the top end power is enough for most. The real improvements are the smoothing of the power delivery and the improvements in throttle response as well as the removal of vibrations due to lean factory settings (All Euro 5 bikes run lean to meet emissions standards). The improvements to the ride ability are huge. This is what every rider can feel and take advantage of. We are so confident that we can transform your bike that all our remaps come with a 30 day money back guarantee. Also a little more power is usually welcome wether we can use it or not 😉

@@BHPUK thanks for responding and thanks for the knowledge .Bottom end power is almost non existent but 0 complaints about throttle response, just a little jerky in city riding in low gear . I have many years of riding in front of me to make myself able to control such a beast. In Greece only Brentune is easily accesible and trusted for BMW motorcycles , but warraty is void if tuned ofcourse ... i guess we have to wait 1 more year until we conclude to tune it or not :P hehehe Greetings from Greece !

@@makosasimakis118 The voided warranty is a HUGE issue! How much trouble to return to stock if warrany was needed? and could bmw / dealer tell if it had been retuned and then returned to stock again? Seems like the system could perhaps log any tune mods ( like permanently?) but idk? BTW I wonder how many hours to R&R headers putting back complete stock exhaust? Is the "exaust valve" part of the motor or is it in the header assembly?

​@@dougiequick1 exhaust valve is built into the cat. I just removed mine and put in a servo buddy on my 21 xr

Thanks Kal :)

Hi Alberto, we actually have a video explaining all this on our RU-vid, here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-2lPFY2Qrees.htmlsi=xp5vnnveKSbgtXvA

That’s wheel power. 👍🏼

Rideon!

Hola, puedes hacer esto en nuestro dispositivo que se encuentra en línea aquí: shop.bhp-uk.net/products/bmw-ecu-flasher?variant=41017951584309

We use a DynoJet. This a strong tune. If 172 is too much for you we can leave the max output stock and just tune the bottom end for smoother running and better throttle response. We have done a lot of Euro 5 XRs, feel free to call us and we can give a more accurate indication of what to expect with your exact set up.

@@BHPUK how does BMW feel about going richer or ditching cats? I would think richer would be better for engine longevity but I can see manufacturers looking at it as a way to get out of an expensive warranty claim even if there was no way a tune contributed to some unrelated defect

@@dougiequick1 it’s the manufacturer’s legal responsibility to prove the modifications made by the customer have caused the fault before they can invalidate a warranty. Like you said running richer is better for longevity, they’d have a fair task to prove otherwise. But ultimately you’d have to ask your dealer how they felt about it.

Hi George, we can certainly flash the ECU without changing the exhaust system. You will still get a very smooth bike and a good power gain even with the stock system. We do a lot of standard bikes in Germany because as you say the laws are strict on removing the catalyst.

Yes we can fix the high revs on cold start. All our remapping is written to the customer’s requirements, so if it’s requested we do it.

Hi, yes we can do this for you via our ECU Flasher, there is no need to bring the bike to us! shop.bhp-uk.net/products/bmw-ecu-flasher?variant=41017951584309

Our up to date prices are online: shop.bhp-uk.net/products/bmw-ecu-flasher?variant=41017951584309

Not sure really. But there’s a good chance it’s too fast to be stopped. 😂

varies by location I imagine ....I know in the states the one color universally outlawed is blue! Even a blue tint can get you cited here

@@BHPUK unfortunatley the speed of light via camera lens aimed at your plate is far faster so even if you get away? You DID NOT lol ...unless you are one of the TRUE "outlaw bikers" that runs NO tag/plate ...ya know? the lawless hooligans seen on youtube etc taunting police....the only REAL "Outlaw Bikers" in the world ....the ones that make Hells Angels etc total posers

Yes definitely

Yes the bottom end is where the biggest gains are made. Even on a stock bike.

Yes you can remap it and keep the cat. Most of our customers still have the cat in place. It will still wake up the bike below 6000rpm.

In principle this should not make any more power. I will try to explain why. An engine has to pump air in and exhaust gasses out. At low rpm it needs less air, if you are passing small amounts of air through a large hole the velocity of air flow will decrease, the flaps are there to decrease the aperture size and due to the Venturi effect this actually causes the air to accelerate into the airbox. We have done a few experiments on cars with increasing the intake aperture on the MAF sensor and we actually lost power at low RPM and engine spool up times increased fractionally. At high RPM the larger intakes did make more power. BMW have developed this system to try to give us the best of both worlds. We have removed the flaps on BMW and VAG cars as when the system fails repairs are expensive and owners will opt to delete the system. Back to back dyno testing on cars has never shown an increase in power after the deletion of the flaps. It's the same with valve opening. Manufacturers have developed shift cams as having more cam lift at high RPM increases power and having low cam lift at low RPM increases power. Hope this helps

@@BHPUK interesting reading. I always assumed most of it was noise suppression. For example the e46 CSL had a flap on the huge carbon intake, but in sport mode the rpm at which it opens is reduced from 6k to 3k. When I fitted a carbon airbox on my e46 I actually opted not to install the flap at all. I still need to get my s1000r mapped, and just happened to see that bren tuning remove it as part of their stage 2 kit... Do you also block off the pair valve as part of the mapping?

@@lordgibbness Dyno testing a bike with and without the intake flaps would make an interesting experiment and give a definitive answer. Maybe one day we'll do it. We can map the PAIR valve out if required.

@@BHPUK this is my first euro 5 bike, and I think the things added (apart from the lean mapping) are carbon canister, pair valve, intake flap, exhaust flap, maybe more? and I would like to get rid of as much as possible when I do install the headers and get it mapped...

@@lordgibbness deleting any of those will not normally be a problem.

You’d have to ask your dealer how they felt about it. We just tune bikes for customers requirements.

What gain would you typically see with the cat and stock headers. I’ve got a 2020 XR with an Apropovic exhaust