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from 26 reviews
Two Brothers 790 (2019-2021) / 890 (2021-2024 S1R Slip-On System 005-5230409-S1B
Two Brothers Slip on KTM 890

2Brothers has yet to let me down. Great Slip on set up, deepens the sound without making it obnoxious. Easy install, took about an hour with wrapping the mid pipe. I recommend wrapping the mid, it is much hotter than stock without the wrap. Thanks Bill! -Jon

Jon E.
Two Brothers 790 (2019-2021) / 890 (2021-2024 S1R Slip-On System 005-5230409-S1B
VANCE & HINES Hi-Output Slip-On Muffler 48427
Nice looking muffler

Not difficult to install. Most likely will require to replace the muffler gasket. Matches well the look of the bike. Sounds well at low to mid range, a little noisy at high RPM.

Dov Greenberg
VANCE & HINES Hi-Output Slip-On Muffler 48427
FMF Powercore 4 Hex Slip-On Muffler KX 450 2024 042401 1821-2091
2024 KX 450

Great sound with mild performance increase. Quality design. Price was fair. Bolted on with no issues.

Do not Like the new sticker logo instead of the traditional FMF stamping.

Mike Jones
FMF Powercore 4 Hex Slip-On Muffler KX 450 2024 042401 1821-2091
VANCE & HINES VO2 Air Cleaner 71305
V&H VO2 Naked Air Cleaner

Exactly as described. Once again, Bill and team have provided a quality, well priced item. They are quick to contact with any possible wrong fit, possible issues, and always have been spot on with solutions or suggestions. Will use Bill's Performance for all my motorcycle needs. Highly recommend this company. (2010 HD Heritage Softail Classic)

Myles Decker
VANCE & HINES VO2 Air Cleaner 71305
FMF MegaBomb Header Titanium YZ450F 2023 -2024 044476 1822-0540

FMF MegaBomb Header Titanium YZ450F 2023 -2024 044476 1822-0540

John Melvin Somera
FMF MegaBomb Header Titanium YZ450F 2023 -2024 044476 1822-0540
VANCE & HINES Fuelpak 4 Tuning Module - Dyna/Softail/Sportster/Touring/Trike 66047
V&H FP4 Fuelpak

I want to highly recommend Bill's Performance for all of your part needs. The entire experience was great. I was having an issue with the FP4 not connecting to my bike. I contacted Bill directly on the phone on Saturday and we were able to resolve the issue with no problems. His response time, patience with me, and customer service are top notch. I will purchase from him again. 10/10 rating. You will not be disappointed. Thank you Bill!!

Myles Decker
VANCE & HINES Fuelpak 4 Tuning Module - Dyna/Softail/Sportster/Touring/Trike 66047
BELT DRIVES LTD. Rear Drive Belt - 140-Tooth - 24mm PCC-140-1
Awesome customer service

Ordered a drive belt contacted me next day it was sold out and filled my order with better belt and shipped fast

Kevin Weis
BELT DRIVES LTD. Rear Drive Belt - 140-Tooth - 24mm PCC-140-1
71210PRI Arrow Pro-Race Exhaust, Nichrome for Aprilia Tuono V4 1100RR / Factory 2017-2018
Awesome seller and great communicator

This is my second exhaust from bill in 6 months for two different bikes he had exceptional customer service and always staying on top of time frame and his prices are better then anyone out there . Overall what makes Bill stand above the rest is his customer service and his passion for bikes that itself tells you what kind of person he is and his enthusiasm for motorcycles.

Luis Perez
71210PRI Arrow Pro-Race Exhaust, Nichrome for Aprilia Tuono V4 1100RR / Factory 2017-2018
AKRAPOVIC Muffler - Carbon Fiber F900R / XR 2020-2024 S-B9SO2-APC 1811-4056
Excellent Service & Prodcuts

Bill’s exhaust personally took the time to customize my experience and be sure I got exactly what I was looking for at the best possible price. There was quick & attentive communication for all my needs and I am extremely pleased with my product and service recieved.

Tyrone Grandison
AKRAPOVIC Muffler - Carbon Fiber F900R / XR 2020-2024 S-B9SO2-APC 1811-4056
ALPINESTARS T-GP Plus R v4 Airflow Jacket - Black/White - Large 3300624-12-L
ALPINESTARS T-GP Plus R v4 Airflow Jacket

The best summer time jacket I have owned from alpinestars so far! I love the fit and airflow!

Sean Douglas
ALPINESTARS T-GP Plus R v4 Airflow Jacket - Black/White - Large 3300624-12-L
DYNOJET Power Commander-6 - Honda PC6-16005
Solid imporvement to a poor running bike

Had some fuelling issues in the midrange - tough to find ECUs for bikes of this age these days. Power commander sorted it out, very happy with my purchase and Bill's service.

Michael Lavdas
DYNOJET Power Commander-6 - Honda PC6-16005
Bill is a solid guy - will definitely shop here in the future

Had a bit of a miscommunication with the shipping timelines offered on the website as the part had to leave the vendor, arrive at Bill's shop and then be shipped to me. I reached out to Bill and he was quick to do what he could to make it right. My part arrived as quickly as he could make it happen and I appreciated the effort he put in. I'll definitely be shopping here again, fair prices and a good guy to work with.

M.L.
Bills Performance
Two Brothers 790 (2019-2021) / 890 (2021-2024 S1R Slip-On System 005-5230409-S1B
Two Brothers Exhaust

Highly recommend Bill’s Performance!

jason landers
Two Brothers 790 (2019-2021) / 890 (2021-2024 S1R Slip-On System 005-5230409-S1B
FMF MegaBomb Header Titanium YZ450F 2023 -2024 044476 1822-0540
Fmf

Excellent service 👏

Paul Stevens
FMF MegaBomb Header Titanium YZ450F 2023 -2024 044476 1822-0540
YOSHIMURA Rs12 System Hon 228450S320
Yoshimura RS12

Amazing product and phenomenal change is performance . I really loved it
Thanks to Bills performance for the amazing service and quick shipping
Highly recommended service

Vimal Menon (vime-9930)
YOSHIMURA Rs12 System Hon 228450S320
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