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FMF Power Core 4 and FMF Q4 Quiet core.

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Hello guys.

Does anyone know FMF power core 4 and FMF Q4 Quiet core?

I've read in other threads that FMF Exhaust is the less noisy of all the aftermarket exhaust.

I think that is the FMF Q4 quiet core. Does anyone know the difference between the power core 4 and Q4 Quiet core? It's just the spark arrestor insert? Or the difference is more complex?

I found a stainless steel exhaust pipe on an ebay store, now I would like to find a good aftermarket exhaust.

My crf230 is street legal, so my goal is to install a type of exhaust that does not have a noise too loud.

I am waiting for your advice.

Thanks.

Greetings and sorry for my english!!!

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I'm not sure which one is one mine but I suspect it's not the Q4.  It's louder than I like, but it does sound nice for all that.

 

I had a Q4 on my 2001 Warrior 350 and it was beautiful.  Not too loud but sounded really nice.  Was no louder than stock until you "got on it" LOL

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Crossplayer,

 

IMO, I think if you are looking to justify a new pipe that is at a sound level of the stocker, you might as well give up.  The stocker is a good pipe and quiet.  All of the after market pipes I believe are louder.

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Hello toneconsultant.

I am not justifying an aftermarket exhaust only for performance or other abstract motivation.

I want to get a stainless steel full exhaust system.

The stock muffler is rust.

In addition my crf 230 with big bore etc need a more open exhaust, if we want to be sincere stock muffler is not acceptable without the spark arrestor (street legal), the noise is too strong.

I have already made a mod to the stock Exhaust, getting a good performance but maintaining a low noise.

If this has been possible for someone like me, definitely specialists of the aftermarket exhaust will be able to do better.. not? ( I enclose a design of the work that I did). But this continues to rust.

1400520477871.jpg

Edited by Crossplayer

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Hello Crossplayer,

Thanks for clarifying that. Hummm. Thats's a hard question. Hard because of the loudness you can get from aftermarket exhausts.

I should explain that I like the stock pipe because of its low noise. I don't use one because I sold mine, but I recall how quiet it was and I have to say I sort of liked it.

With quiet, however, you can loss power. I believe the Powroll Thrust Chamber is a fast add-on to the stock pipe that will give you some umph, but your pipe is rusted so that won't work. Hum. XR's Only has a stainless steel unit and Engine's only has their Supertrapp pipe. The only problem for you, however, is since you are in Europe, I'm not sure the noise level will cut it for you.

Crossplayer, I have to admit, I'm scared to recommend a pipe. If you only wanted to get more power, it would be easy. Since you are concerned about noise (which I must say I lower my hat to you because that is the responsible thing to do), however, this is hard.

BUT, FMF has the BOMB header! That's supposed to cut noise levels. Well, this doesn't answer your initial question(I haven't tested those FMF pipes so I can't answer on those), but I changed my mine, I say to try this. FMF bomber header and a stock exhaust off EBay! I know, it's not as exciting as the FMF end pipe, but the header should open up your big bore and the stock exhaust will also retain a quiet bike.

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I have already bought ARROW 72096PD stainless steel exhaust pipe, I hope that it arrivals soon.

The time now I have to look for the best solution for the exhaust (of course for my needs).

I know that the most popular aftermarket exhaust have inside only a drilled tube with direct output, without pressure return.

This system enhances the high regimes and is very noisy, I do not want this.

I believe that an aftermarket exhaust with quiet insert and built with stainless steel is my goal.

Here the reason of my curiosity about the FMF Q4 Quiet core exhaust. I hope someone has this FMF exhaust and can share his experience about this.

Thanks.

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i have the powercore 4

 

if you are looking for a quiet slip on... dont get the powercore 4

 

 

it was loud with the spark arrestor in

 

 

it is ridiculous with the spark arrestor out

 

 

on videos, you can hear me over the crf450 that is closer to the camera than i am lol

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I had been looking at exhausts for the CRF230F.  General consensus from what I read here was that performance wise the stock exhaust was both quiet and efficient.  I believe I had read threads where it was mentioned that some aftermarket pipes took away from the low end.

 

I have also read that the spark arrestor on the FMF Powercore 4 would blow out, with no factory replacement available (I believe I had read several threads by different members who this happened to).  I don't know if this was a design problem that was eventually fixed by FMF or not.

 

To be honest, I just bought a new OEM Honda header from Rocky Mountain for $35!  At that price, it would be economical to replace the header pipe every few years compared to what some of these aftermarket systems go for.

 

I would like to pick up a lighter silencer, and was leaning toward the FMF - but I am concerned about the spark arrestor issues I had read about - so I'm not sure what I am going to do now either...

Edited by OldMike

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