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[MightyTharg]

I've had Fullsac DX headers on my 2015 CVO Street Glide almost since day 1, but I've tried a variety of mufflers:  I started off with Supertrapp Fatshots then tried the stock CVO Mufflers then the CVO mufflers with Fullsac 2.0" cores and after that Crusher Mellows.

I've now gone back to the CVO mufflers with Fullsac cores.

In my opinion, for cruising at 70-90mph both the Crushers and the Full sac cores are a tad loud. You do have a solid wall of noise behind you. But the Crushers just sound too "blatty" for me and I prefer the note (on & off the throttle) of the Fullsac cores. Plus they seem to gel better with my brain in terms of the correlation between what your throttle hand is doing, the noise from the exhaust and what the motor is doing - just feels more "natural" somehow.   Yeah I know - not very scientific is it?

At no point has my bike been on a dyno - it's just been canned Stage 1 map plus autotune runs with the SEPST - and there's little difference in outright performance according to "seat of the pants".   

What I may try next is to repair and modify the stock baffles so I can swap between them and the Fullsac ones if I need to quieten down the bike (for the MOT test or some continental touring).

All things considered though, I've been very happy with the Fullsac cores and the DX headers.

Cheers

Andy   

 

[Mr D]

Or you could swap out 2.0 core with a 1.75 with sleeves & techmat.
Also, there's no substitute for a good tune, even on a bone stock bike..

Ride Safe

[CVODON]

I would think u already have the screens & mat? Just not enough difference in sound to change to 1.75" from 2.0" baffles.

[barrhill]

i have fullsac slip ons  with 2 inch cores with technomat   they cruise very quite but crack nice when you get on the throttle and other people who have rode my bike and drove along me  say the same thing how there can be so much difference .
it has sure made a difference on a long ride from being fatigue from the noise and  a little easier listening to the tunes

saying that my 117 is a long way from  stock

[Cat Eye]

I would think u already have the screens & mat? Just not enough difference in sound to change to 1.75" from 2.0" baffles.

I changed from 2" to 1.75" and agree that the sound difference is marginal....but this difference at 2700-3000 rpm while touring was huge for me.

[VANAMAL]

Ive got a set of 1.75s give them a try. Real nice