I'm not looking for a loud exhaust or mega performance, (if i want that i shold buy anothe GSXR1000) More astetics for me. Yes it is a shiftcam 2024. Thia report was left about GRmoto exhaust on another forum.
Disclaimer: this review is subjective to the suitability to R1250RS and does not apply to other machines
First impressions:
Packaging was excellent with the fitting in their own box in foam and velvet cut outs. Gave the appearance of a much more expensive can. Came with some nice extras such as tank protector, tire valve caps, key ring and these were very good quality.
Exhaust looked well made and good quality also.
Fitting:
Straight forward swap from the standard can. Some adjustments to get it to line up with the bracket and seemed to turn inwards a little, but was happy with how it fitted.
Quality after use:
Noticed some discolouration towards the end of the can. Was turning a bronze brown which I assume was heat damage. Also could see some threads of the packing were coming out near the baffle. There was also some degradation of the seal after a 1k miles which was a concern
Sound:
Didn’t sound bad, just don’t think it suited the bike. Had an agricultural grown to it. Love to pops on deceleration but tick over and acceleration just sounded wrong. The standard can does well to disguise the fact it’s a big twin.
Performance:
Never expect big gains from an end can. To get noticeable gain required full system, mapping and air box modifications. I did however notice a change in performance with this can though. Low and mid range lost a noticeable amount of torque, maybe even at higher revs also. Bike was spluttery at low revs making throttle response jerky meaning I was having to hold lower gears at higher revs to get a clean response. What was also noticeable was the vibration from this exhaust. Pillion described it as a shin rattler and I could also feel the vibration when riding. More noticeable when accelerating from low revs. Only benefit in performance was the sprung weight reduction.
Conclusion:
This can has 5 star reviews, but I don’t think it’s suitable for the R1250RS. Looked worn out after a month (1800 miles), reduced performance, didn’t sound right, and introduced vibration to the smooth ride.