Exhaust

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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

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 Exhaust Hard Parts Performance Yamaha

Parts That I Have Tried, That Work (2023 Yamaha YZ450F Edition)

Since I test so many different parts on so many different bikes, I thought I would produce an article that gives you a few aftermarket parts that actually work. Over the next few months you can find, "Parts That I Have Tried, That Work, articles on all different types of bikes right here! I have…

ByKris KeeferJanuary 25, 20230Comments

Bike Brands Bolt-Ons Exhaust Gasgas Hard Parts Performance

Pro Circuit Ti-6 Muffler System (2023 Gas Gas MC350)

The Gas Gas MC350 isn’t a bike that I get to play with that long as the company requires the unit back early so I at least wanted to get a Pro Circuit muffler test in before they snatched the unit back. I have not tested many Pro Circuit pieces on a Gas Gas/KTM/Husqvarna so…

ByKris KeeferJanuary 9, 20230Comments

Bike Brands Bolt-Ons Exhaust Hard Parts Kawasaki Performance

FMF 4.1 Stainless Muffler System (2023 Kawasaki KX250)

The Kawasaki KX250 has undergone some significant engine changes for 2023 and that sparked FMF to make an update to their 4.1 muffler system. The 2023 Kawasaki KX250 engine character has more low end grunt as well as pulling power than last year’s model but it still isn't quite as good as the Yamaha in…

ByKris KeeferDecember 1, 20220Comments

Bolt-Ons Exhaust Hard Parts Husqvarna

To Slip On Or Not To Slip On? FMF 4.1 Slip On Muffler (2023 Husqvarna FC350)

Some muffler questions that get sent to my email inbox usually look like, “which muffler is best for my bike? Is a full system worth the money or can I just get away with purchasing a slip on”? “Is my stock muffler the best muffler option for me”? Instead of trying to keep answering some…

ByKris KeeferSeptember 28, 20220Comments

Bolt-Ons Exhaust Yamaha

FMF 4.1 Slip On Muffler (2022 Yamaha YZ250F)

Yes, we know it is tough to get a full muffler system at this point in time as COVID has screwed a lot of inventory up. However, you can find slip on mufflers as FMF has been busy getting product back in stock! We recently tried a dual injector kit on the Yamaha YZ250F and…

ByKris KeeferJune 27, 20220Comments

Exhaust Honda Performance

Akrapovic Evolution System (2022 Honda CRF250R)

I had this initial impression of the Akrapovic Evolution muffler system as I was doing a Racer X Garage Build on the 2022 Honda CR250R. After riding with the system for some time I came away with some notes that you may have not known about the beautiful system for the new generation CRF250R. The…

ByKris KeeferMay 17, 20220Comments

Bolt-Ons Exhaust Hard Parts KTM

FMF 4.1 RCT Full Muffler System (2022.5 KTM 450 SX-F Factory Edition)

So the new 2022.5 KTM 450 SX-F Factory Edition has gained seven pounds from the standard 2022 version. If you want to knock off almost two pounds of that with a muffler system and get some added power in the mid range look no further than the FMF 4.1 RCT Full System. Yes, that’s right…

ByKris KeeferMarch 22, 20220Comments

Bike Brands Exhaust Kawasaki

PRO CIRCUIT T-6 STAINLESS SYSTEM (2022 KAWASAKI KX250)

The muffler on the stock 2022 KX250 sounds a little too blown out for me in stock form (even when new). The tone of the muffler is not pleasant to the ear, so I crossed my fingers, called Pro Circuit and picked up a T-6 (stainless system) Muffler System to see if it enhances the…

ByKris KeeferJanuary 17, 20220Comments

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