Standard baffles-just drilled or out altogether?

[BBUK01]

Give it a week or two and the drill will be out again

I agree a huge improvement over standard, but think how good it would be with 8 holes each can

Actually i was so impressed with the baffle modification on the Firestorm , that i searched and found info regarding doing it to my Bandit.......job done ,sounds real good ..............Not as good as a v-twin though

Nah,... I think 3 holes at 13mm plus the baffle is enough, anymore and it's too loud and draws the wrong kind of attention, this way it's just nice, not muffled and not deafing but headturning .

So to do this mod you just drill the 3 holes in the end plate of the exhaust and not into the baffle ?

yup, correct, do this to both exhausts...

[stormingjoe]

no baffle no ectomy

[geodude]

Give it a week or two and the drill will be out again

I agree a huge improvement over standard, but think how good it would be with 8 holes each can

Actually i was so impressed with the baffle modification on the Firestorm , that i searched and found info regarding doing it to my Bandit.......job done ,sounds real good ..............Not as good as a v-twin though

Nah,... I think 3 holes at 13mm plus the baffle is enough, anymore and it's too loud and draws the wrong kind of attention, this way it's just nice, not muffled and not deafing but headturning .

Do you have to remove from bike to do the drilling or did you leave it on? What happens to all the crap from drilling? I guess it gets blown out the back when you start her up.

[bikerpiker]

Leave them on when drilling them,makes them more solid to work on .

I think the first time i drilled the holes ,i took the can off to empty the swarf out, when i drilled them out a bigger size i didnt bother

[BBUK01]

I left the cans on, it's easier that way and the swarf, well most gets drilled out of the way and the rest either blows away or gets vibrated away

[Mick B]

Just another question with its drilled will it still pass an MOT.And also with the baffle removed will that pass or fail.

[bikerpiker]

I'd say with them just drilled,no probs regarding an mot at all, ..........with the baffle removed completely,i'm not sure,....i think as long as it does not say "not for road use" ,it's at the examiners discression

I made up an end cap thingy for each side for the mot, just incase (my baffles were removed),had no problem at all with mot

[LutonStorm]

Just a question as i'm thinking of going down the baffle-ectomy route... (watch out PhilVT, i'm on my way with a drill too!)

Would either mods.. (drilled or completely removed) affect the performance? it's not altering the length, but might it upset the back pressure? Only thoughts from a junkroom mechanic??
Simon

[bikerpiker]

Certainly i never noticed any difference in performance , if anything it felt more responsive , and MPG seemed better as well .......well,it seemed like it

[LutonStorm]

Cheers BP
Just didn't wanna go down the "saving money for a while" route and end up spending a fortune dyno and jetting the system to cope with the new "cans."

oh well, here goes!

[mwross1964]

Well I done the three holes (7mm)each side,and I must say it sounds very nice & apart from the odd back fire,seems to run better.



Mark.

well chuffed.

[IgorVigor]

Must get round to modding my stock cans :S

With having a 33bhp restrictor kit, if I fit different cans, it invalidates the insurance! :S

So out will come the drill...

I'm not going to do a full bafflectomy, but seeing that difference people have drilled different size and different quantities of holes, anyone got an idea what combo is best for deceleration pops?

Thats the main reason I changed the can on my 650 single cylinder

So anyone got an opinion?

[Phil-VTwin]

Start with small holes, say 7mm see what is like then you drill bigger ones if its not too your liking, i just went and drilled 12mm in mine and that is fine, the kids can hear me from 1/2 mile away when i visit them so they are all waiting when i get there

[Mick B]

Drilling all these holes does it make the bike run Lean during day to day 30-40 mph riding ? Mines nudging back when on a steady throttle but goes like stink once opened up.

[mwross1964]

As I said I find it runs better,sound and performance, with 3 x 7mm holes on each baffle.Sitting at traffic lights or twistin' the throttle as you have the clutch in when changing down gear has never been nicer...............

Mark