De-cat

Hyperstrada66 · Apr 6, 2018

I've removed the cat out of my standard exhaust using a drill hammer and chisel and some long pliers the power gain is good

and well worth doing

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monocog007 · Apr 6, 2018

How's the noise? Any difference?

Hyperstrada66 · Apr 6, 2018

monocog007 said:
How's the noise? Any difference?

I would say almost the same perhaps a little bit deeper but not much

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Araitim · Apr 8, 2018

Was it one worth the effort? Did you keep the exhaust flapper valve?

Hyperstrada66 · Apr 8, 2018

Araitim said:
Was it one worth the effort? Did you keep the exhaust flapper valve?

Well worth the effort and still running the flapper

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appliance821 · Apr 16, 2018

Hard to see how power is better with the lack of back pressure. Without a remap you're mistaking sound for power.

gatdammit · Apr 17, 2018

Back pressure. I learned this lesson the hard way as a kid when I straight piped my GTI.

RSL · Apr 17, 2018

I don't follow bikes without a catalytic converter because of the dirty exhaust. Stinks and irritates. Toxic really.

Hyperstrada66 · Apr 17, 2018

appliance821 said:
Hard to see how power is better with the lack of back pressure. Without a remap you're mistaking sound for power.

Do you know this for fact or just guessing the noise levels haven't changed!

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appliance821 · Apr 17, 2018

Hyperstrada66 said:
Do you know this for fact or just guessing the noise levels haven't changed!

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Not sure what you mean - pretty sure it's louder.

The main point is that exhausts are tuned so the the pressure wave resonates in a specific way. This bike generates the most power somewhere in the 5 - 8 k range - that's where your most efficient scavenging was happening. Where your power is being generated now is unknown.

Also - as RSL mentioned - you ain't doing anyone riding behind you any favors.

De-cat

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