I have a duncan racing fatboy4, A stupidly huge K&N with outerwear, no air box lid and a vortexx10 .
The noise is just too loud and need ear plugs when riding..
since this is a uk road legal machine the noise is not acceptible, plus i dont want to end up deaf !
Today i put the stock header and rear silencer back on and wow, so much quiter..
Took it for a spin to make sure it still runs ok as vortex settings have not been changed.
The quad ran faultless and flat out goes just as fast (84.3 mph on gps)
Next will be to remove the k&n as there is dust in the inlet manifold..
Have always read k&n,s suck as they dont filter enough, well ive just found out for myself.
Have also ordered a airbox lid as i dont have one which has to come from the states..
The induction noise is very loud when opening the throttle so will look forward to shutting that up once and for all.
Will be interesting to see if the quad still reaches 84.
I did the "big three" to the raptor i had and it didnt make any difference, other than lost some low end grunt and dropped from 90-100 miles per tank to 60 !
Fairly sure the honda will not loose much either.
This must be a first though as most want to add the big 3.. I bought my quad already with them and want to go the other way ..
The noise is just too loud and need ear plugs when riding..
since this is a uk road legal machine the noise is not acceptible, plus i dont want to end up deaf !
Today i put the stock header and rear silencer back on and wow, so much quiter..
Took it for a spin to make sure it still runs ok as vortex settings have not been changed.
The quad ran faultless and flat out goes just as fast (84.3 mph on gps)
Next will be to remove the k&n as there is dust in the inlet manifold..
Have always read k&n,s suck as they dont filter enough, well ive just found out for myself.
Have also ordered a airbox lid as i dont have one which has to come from the states..
The induction noise is very loud when opening the throttle so will look forward to shutting that up once and for all.
Will be interesting to see if the quad still reaches 84.
I did the "big three" to the raptor i had and it didnt make any difference, other than lost some low end grunt and dropped from 90-100 miles per tank to 60 !
Fairly sure the honda will not loose much either.
This must be a first though as most want to add the big 3.. I bought my quad already with them and want to go the other way ..