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Looks amazing, obvious weight benefit, great sound but loud.
Installation is relatively easy but instructions could be improved
Best looking exhaust out right now. The picture posted isn’t quite correct. It’s a lot smaller way better looking. Exactly what I was looking for. It sounds amazing. It sounds contemporary and mean!
Bill’s delivered. Build quality is outstanding, fit and finish is perfect. No problem at all installing. Sound is louder than oem but not too much to upset the neighbors. Well worth the Arrow build time wait. Thank you.
Shippng took a while due to convolution of shipping to California. But product was in excellent shape and install was easy
Easy install except the springs. Buy a 10” spring puller. Sounds great. Nice welds. Typical Akrapovic quality and Bill’ Exhaust was best price and quick shipment.
Everything I expected it to be and more. Install was easy and it sounds great
I love the exhaust and it sounds AWESOME! Fits perfectly so cutting or trimming required.
The new exhaust fits and looks absolutely perfect. Also the Best performing exhaust you can buy for this Triumph 765. Purchased from a great supplier. Bill’s exhaust are an excellent group to work with.
The Italian made seat cover is made with pride, so the end result is an outstanding product. Thank you Bills Exhaust for the quick turnaround and support on this item.
Fast shipping and a great price
Beautiful muffler. Easy install. Perfect sound. High quality throughout. Completely changed the look of the bike. Love it. Expertly packaged in foam rubber so it arrived unscratched. Thanks Bill's.
You guys saved my butt with this, I couldn't get it in my area since one of the shops were having tariff issues and not ordering arrow at the moment. But you guys did everything plus more of ordering it checking it and shipping it off to me. I didn't want to go with any other exhaust and you guys delivered. I will forever appreciate you guys and recommend you in the future.
Great customer service and delivery I love my exhaust!!!
After quite possibly the longest 42 day wait of my life my complete m4 exhaust was finally in my possession. Worth the wait and I’d order from bills again.
Installed on my 2025 BMW S1000RR and the fitment was absolutely perfect.
The titanium finish, weld quality, and overall construction are excellent. Sound is deeper, cleaner, and slightly louder than stock without being excessive.
After the first ride, the titanium started developing the beautiful blue heat coloration that Akrapovic is known for, which gives the exhaust an even more premium appearance.
I had previously tested an aftermarket replica, and while it was surprisingly good, the genuine Akrapovic stands out in overall refinement, finish quality, and how the titanium ages with heat cycles.
If you’re looking for an OEM-quality upgrade that complements the BMW perfectly, this exhaust is worth it.
Bill’s Exhausts also had the best price I could find, with fast shipping, no tax charged to Texas, and free shipping, making the purchase experience even better.
Highly recommended.
