Saving customers from trading in a bike they love due to ride-ability issues!

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Product Description



  • Power and torque gains due to unrestricted throttle and removal of limiters
  • Lower fan-on temperatures
  • Smoothing of part throttle and low RPM rideability to combat bucking and jerking
  • Removed top speed limiter
  • Aggressive ABS / DTC bike intervention for more experienced rider looking to shave seconds at the track
  • Stronger idle speed to combat stalling on warm up
  • Reshaped torque model for more power at all RPM’s, part or full-throttle
  • Ignition timing optimized for every fuel
  • Conversion to lambda
  • Full-throttle limiters
  • Engine braking in all modes
  • Cold and warm start issues eliminated
  • Removal of known flat spots in the RPM range
  • Rev-limit adjusted for max power
  • Lambda limiters adjusted for maximum power
  • Throttle valve adjustments
  • Software adaptation to for multiple fuels


The power gains from Stage 1 aren’t just peak.  You can see power is gained over the entire RPM range over stock.  The extended RPM limiter helps to provide less shifting and a broader top-end powerband.  This motorcycle has an exhaust system.  If your bike has a stock exhaust, the stock exhaust valve is holding back quite a bit of power.  We have seen gains upwards of 10whp over stock with our Stage 1 flash.

*This testing was all performed on 91 pump gas with an Akrapovic exhaust system.

BMW R 1250 GS Dyno

Affirm Financing

We spent a ton of time removing the midrange and bad sluggish throttle response, along with the jerking and bucking throughout the power range.  The bike drives like a completely different monster after mapping!


Additional information

Weight15 lbs
Dimensions15 × 15 × 15 in


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  • “ Bike is running awesome and no out of the ordinary popping under load during downshifts at high rpm. My hats off to your team for making me feel like I have a personal tuner at my disposal. Really appreciate the quick turnaround to get me straight. I can definitely feel the extra power! ”

    Andy Young - Maryland Aug 28, 2018
  • “ This product is amazing.  I feel like I have a better version of my bike.  Like it should have come this way.  The throttle smoothness and even power band make it a joy to ride.  I no longer feel as if I'm riding a wild bronco lol. Thank you again, I didn't think that a L-twin could behave this well.  Also, your customer service is the best.  I could always reach you by email or phone.  I will tell everyone I know about this fantastic addition.  Keep up the great work, guys! ”

    Dan Martinez May 01, 2017
  • “ I have a 2015 S1000RR and was extremely skeptical when I heard about BT Moto and the power they got out of an ECU flash.  After speaking with the team at BrenTuning, all my hesitations were put to rest and I haven't stop winning first place trophies since! BELIEVE THE HYPE! ”

    Troy Gleason - California Jul 10, 2016
  • “ Bren and his team did an awesome job on my bmw s1000rr. Went from 179rwhp an 83 rwtq to 206 rwhp and 93rwtq. Customer service was great and I highly recommend them for any of y'all that want to make that power!! ”

    Paul Jackson - Texas Jul 10, 2016
  • “ Purchased the tune for my 2015 BMW S1000RR. Was skeptical at first and initially had a bunch of questions. Chris was very patient with me and answered them all. Had some problems after receiving my ecu back and Chris was very helpful in getting all my issues worked out. Bike runs fantastic. Definitely worth it. Thank you again guys for dealing with my questions and taking care of everything before and after the purchase. Fantastic customer service. ”

    Cody Hunsucker - Tennessee Jul 10, 2016
  • “ After doing some research it was obvious that BT Moto was the best option for tuning of my S1000RR. I wont go into details but after multiple overnighting of parts to me at no additional charge, I'm really impressed and satisfied with the end result and I haven't even tried out my race fuel tune yet! To top if off I received a random care package of goodies from Chris today. The customer service at BT Moto is probably the best I've received from any business I've dealt with. Their email response times are unreal as well, lol. Literally sometimes instantly, kinda weird. lol. I would recommend any and everyone to BT Moto for your S1000RR tuning solution. If anyone has any questions or are hesitant before purchasing, feel free to shoot me a message and I'll help / assist / give you a more detailed opinion on my experience as well. ”

    Trey Hull - Texas Jul 10, 2016
  • “ I have the Bren Tuning ECU flash on my 2015 BMW S1000RR and it is unbelievable how fast this bike is. This tune is the best thing I got for my bikes. I have also did the Bren Tune for my 2014 BMW S1000r for which it just made this bike really nice. Bren Tuning is the best. ”

    Darnell Edwards - Maryland Jul 10, 2016
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