Performance – Page 6 – Keefer, Inc. Tested

Weekend Race Set Up: 2023 Yamaha YZ450F

Kris Keefer Track: Fox Raceway Terrain: Sandy top soil AM with hard pack in PM Start: Grate Avg. Lap Time: Wouldn’t Know Total Number Of Motos: 1 lap Weight At Time Of Race: 172 pounds w/o gear 2023 Yamaha YZ450F: Engine Hours 10.6 Mods/Parts: …

ByKris KeeferMay 31, 20230Comments

Bike Brands Bolt-Ons Hard Parts KTM Performance Suspension

8 Ways To Get Less Rigidity Out Of Your 2023/2024 KTM 450 SX-F

If you need a little more forgiveness in your life from your 23/24 KTM 450 SX-F then here are some ways to help make your orange machine less rigid feeing. Sure, you still need around 10 hours or so to break in the frame, but these mods will help give you some more comfort, which…

ByKris KeeferMay 29, 20230Comments

Bike Brands Hard Parts Performance Yamaha

GET RX1 PRO ECU 2023 Yamaha YZ450F

GET RX1 PRO ECU (2023 YZ450F)

ByKris KeeferMay 23, 20230Comments

Bike Brands Bolt-Ons Hard Parts Performance Yamaha

Twin Air Power Flow Kit (2023 Yamaha YZ450F)

If you want to get rid of that plastic air filter cage system that sometimes doesn't seal all that well on the 2023 YZ450F, go with the Twin Air Power Flow Filter Kit. To me the Twin Air YZ450F PowerFlow kit is the best all-around filter system for the YZ450F airbox. Why? With this kit,…

ByKris KeeferMay 16, 20230Comments

Bike Brands Bolt-Ons Exhaust Hard Parts Kawasaki Performance

2023 Kawasaki KX450 Pro Circuit Ti-6 Muffler System

When you think of muffler systems for the Kawasaki KX450, you think of The Pro Circuit Ti-6 muffler system. I have tested a lot of different mufflers for the KX450, but what does the Pro Circuit system bring to the table for the money? The PC Ti-6 system will set you back $1270.00 and will…

ByKris KeeferMay 15, 20230Comments

Bike Brands Hard Parts Performance Yamaha

2023 Yamaha YZ450F Optional Yamaha Power Tuner Maps

I have been tinkering with maps lately on the 2023 Yamaha YZ450F and have come up with a couple new maps good for race day. The Keefer Race map is great for second motos and the Keefer Connection Torque is a map is a map I use for first motos. Either one of these will…

ByKris KeeferApril 23, 20230Comments

Bike Brands Bolt-Ons Exhaust Hard Parts Husqvarna KTM Performance

Pro Circuit Works Pipe and R304 Shorty Silencer (2023 KTM/Husqvarna 250/300)

I have been testing quite a few pipes/silencers for the 2023 KTM 250/300 as of late (FMF, Bills) and the Pro Circuit system is the latest that I have tried. The Works pipe and R304 Shorty silencer was tested on a recent Racer X Garage Build Husqvarna TC250 that I had the chance to ride.…

ByKris KeeferApril 6, 20230Comments

Bolt-Ons Garage Hard Parts Performance Tech Trackside

5 Products We Use But Do Not Get Paid To Use

In the world of media testing it’s tough to really decipher what is good and not good at times. The ol’ greenbacks rule the roost when it comes to what is “tested” and rated with the moto media. I mean of course you need money/advertisement to survive but it gets cloudy at times between the…

ByKris KeeferMarch 29, 20230Comments

Bike Brands Bolt-Ons Exhaust Hard Parts Performance Yamaha

Akrapovic Evolution Muffler System (2023 Yamaha YZ450F)

The Akrapovic Evolution muffler system is one of the most beautiful looking systems out there in the market today, is well built, and has quality welds all the way around it. The change of shape in the Evolution muffler might take some getting used to but to me, it is one of the most under…

ByKris KeeferMarch 6, 20230Comments

Bike Brands Bolt-Ons Hard Parts KTM Performance Suspension

Works Chassis Lab Engine Mounts (2023 KTM 450 SX-F)

There are a couple companies out there producing engine mounts these days and while I stand by my claim that some bikes DO NOT need aftermarket engine mounts some bikes/models could benefit from a softer feeling mount. I have come to find out that one of those bikes is the 2023 KTM 450 SX-F. I…

ByKris KeeferMarch 2, 20230Comments