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Discussion Starter · #1 ·
I'm in the market for a new exhaust and license plate bracket (Fender Eliminator)... and other cool mods...

I've been searching all over online and I am a bit shocked that we do not have a lot of options for this bike. I know that this bike is not as high demand as other bikes such as Grom, CBR300R/250R but I really think that CB300F is a great bike!

I've created a list that I found online for the exhaust:
Yoshimura R77
Scorpion Serket Parallel
Musarri
M4
Two Brothers Racing
MGP Exhaust
Coffmans
Leovince

I'm a type of person that likes the shorty exhaust, like the Taylormade exhaust (where the exhaust is hidden or shorty, as I think they are pretty slick) But I can't find anything like that other than the Coffmans. And I'm pretty skeptical about the Coffmans brands (I heard someone had overheating issue after installing them)

So I'm just wondering if any of you guys here installed an aftermarket exhaust? If so, post it and share it with us.

In another token, any of you guys know if CBR250R/CBR300R exhaust (slip-on/full) will fit for our CB300F? Does it need adjustment? If so, what kind? (welding? drilling?,...?)

Thanks guys! Now post your mod CB300F! Any mods will do! :D
 

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In another token, any of you guys know if CBR250R/CBR300R exhaust (slip-on/full) will fit for our CB300F? Does it need adjustment? If so, what kind? (welding? drilling?,...?)
Any CBR300R aftermarket slip on will fit your CB but 250R slip on's require modification as they are designed for the shorter header pipe of the 250R.
So you either chop down your 300 header or get a new mid/link pipe bent up to marry the 300 muffler to the 250 header.
 

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See my sig.

My exhaust is a copy Akropovic made in Thailand. Full system was about $300 U.S.

I dropped in a hi-flo air filter and ripped out the intake snorkel.

Fuel controller to tune it.

It runs well. Bit more oomph down low and a lot more at higher revs.

I haven't noticed any loss in fuel mileage but since I'm putting in more fuel it can't be as good as stock.
 

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removing the snorkel actually decrease air flow into the intake. It has a velocity stack design. The snorkel smooths the flow of air and being a honda, also is tuned with the motor and exhaust. With out the snorkel now the flow is very turbulent and is out of tune with the rest of the motor system. It does make it louder but don't associate loud with improved performance.
 

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removing the snorkel actually decrease air flow into the intake. It has a velocity stack design. The snorkel smooths the flow of air and being a honda, also is tuned with the motor and exhaust. With out the snorkel now the flow is very turbulent and is out of tune with the rest of the motor system. It does make it louder but don't associate loud with improved performance.
I don't doubt you and to be honest I didn't remove it, the person that installed the fuel controller did. I'm not worried about it being out of tune because that's what the fuel controller was for.

I'd actually prefer my bike to be quieter but it runs so well I'm happy with it.
 

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Discussion Starter · #9 ·
I love shorty styled exhaust as well. I recently installed the tyga maggot full exhaust system.
very cool!
I'm leaning toward Coffmans exhaust.
Other mods I'm planning to do:

- Replace that ugly fender. Awaiting for this guy to reply back to tell me where he's ordering it from. http://www.cbr300forum.com/forum/ap...would-look-like-without-ugly-fender-grip.html

- FE, Frame slider, integrated tail light, fork chain and tank protector.

Will post picture upon completion.
 

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Zac.. Is that a slip-on? Or Full system? Also where in Ontario did you get it?? Thanks......Laurie
 

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Delkevic 14" carbon fiber. Comes with decibel reducer which is best left in as it's just loud enough for my liking. Reasonably deep note but more so on the over run (deacceleration).

 

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That muffler looks nice Kiwi...I do not know if we can get them in Canada...
 

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That muffler looks nice Kiwi...I do not know if we can get them in Canada...
You would be able to get them from the US tho. After I posted that I remembered that its a slip on designed for the 250R as I had it on my old Repsol originally.
I just checked the Delkevic US web site and they still aren't listing a 300R specific muffler. Poor.
So you would have to chop four inches off your header pipe for it to fit. Not ideal.

Stubby 14" Carbon Fiber Oval Muffler to fit CBR250R MC41 (2011-2014)
 

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Very nice!
Did you get a fender eliminator too?
If so, what kind? Pic?
no fender eliminator!! sadly where i live, youll get a $160 ticket for no mudflap :crying: LOL
 

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6% eh.... hmmm... number crunching here.... = 1.8 Hp. Sounds about right! :laugh:;)


honestly you notice the increase in higher RPMs, as well as spead
 

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