Modding stock exhaust

[Reddevil76]

Ok, so I was fined $500 within a month of installing my M4 full system.

No choice but to sell it off on Ebay. But a few months later, I'm missing the V-twin rumble again.

I've decided to take out the OEM cans innards and see what I can do..

Following instructions from this board, I grinded off the tig welds on the three button screws, remove the shiny end cap, grinded off the aluminium lip which folds over the steel inner can, and proceeded to use a block of wood to knock the inner can out of the aluminium sleeve.

But damn! The inner can refuses to budge!

Am I missing something here? Anything else I should loosen or remove before the inner can will slip out of the sleeve?

[Stabber]

All I did is remove the stainless cap, torch around the smaller pipe leaving the 3 screw holes, then torch the smaller pipe about 3 inches inside. Throw that piece of metal away, screw the end can on and you are done

[Reddevil76]

We do get stop by the cops from time to time. They will actually look to see if the smaller pipe is still around. If not, another ticket..

[1LOUFO]

Take the end cap off and drill 3 or 4 holes in the end of the can. Screw the end cap on and it looks stock again, but has more romble

[MotoTiller]

Reddevil76, welcome

[Reddevil76]

Modding stock exhaust

Originally posted by 1LOUFO
Take the end cap off and drill 3 or 4 holes in the end of the can. Screw the end cap on and it looks stock again, but has more romble

I thought of that. But wanted to "go all the way". Didn't want to create a turbulence inside, which may likely impair performance.

Anyhow, I've already grinded off the lip. So will have to carry this project through.

Just wondering how the others knocked the inner can out while I'm stuck.

[Reddevil76]

modding stock exhaust

Originally posted by MotoTiller
Reddevil76, welcome

Thank you. Actually I've been lurking, but not posting as I have more questions than answers.

Also, I'm from Singapore, thus sometimes may get lost among the local slang

[SDTLR]

No worries Redder, we'll only bash the language barrier a little bit Just ask my buddy Jens

Welcome

[Reddevil76]

Modding stock exhaust

Originally posted by SDTLR
No worries Redder, we'll only bash the language barrier a little bit Just ask my buddy Jens

Welcome

Thank you. Now from the speed of my replies, everyone can see I'm really eager to find some answers. Monitoring the thread like crazy.

In the meantime.. I'm going to do more knockity knock to see if the bloody inner can just needs some walloping to budge.

[Wondertwin]

I think in the face of $500 fines, I'd leave it the heck alone!

[TLSBill]

Originally posted by Wondertwin
I think in the face of $500 fines, I'd leave it the heck alone!

That's a lot of $$$

Welcome

[PutteLiten]

Re: Modding stock exhaust

Originally posted by Reddevil76
Ok, so I was fined $500 within a month of installing my M4 full system.

The M4 system is LEGAL i Sweden.






The system produced 102dB at the vehicle inspection. 103 dB is allowed.
Sooo, the bike passed the annual vehicle inspection (every second year acctually...) with the M4!!!

[Stabber]

Forgot the welcome I'm sorry . I've also seen where you do what I did and put a stainless steel drain screen in behind the end can and it keep them from putting anything down the hole to check. It would be better to remove the material all around the screws behind the endcan to let the exhaust by and it would appear stock also

[Reddevil76]

Originally posted by Wondertwin
I think in the face of $500 fines, I'd leave it the heck alone!

When you install an aftermarket exhaust system, they term it "Modified exhaust" and slap you with a fine of $500.

When you modify your OEM exhaust, they term it "Defective exhaust" and slap you with a fine of $70. (I can live with that)

And I figure if I modify my OEM cans discreetly, they might just decide they have better things to do and move on.

[Reddevil76]

Originally posted by TLSBill


That's a lot of $$$

Welcome

Welcome to Singapore. We have so many fines that the tourist shops actually produced a t-shirt with all the signages displaying the different fines with a saying "Singapore is a FINE city"

Did you know chewing gum is banned in Singapore? Simply because the authorities could not stand the consumed gum sticking to the floors of the public trains..