Type of silencer

[moto]

I have the standard exhaust on my bike and I have ordered some big bore headers and a K&N filter.

I have access to land where I can ride miles away from people and animals and want to get a silencer that wont restrict the bike like my standard one.
I will keep the standard one for road use and for getting from my place to the land because it is quiet, then I will change the silencer.

What should I look for in a silencer for maximum power?
I assume the reason why the standard is restrictive is because it needs to reduce noise to meet regulations, is that right?

So I guess I need to get a silencer with little inside?

[Kickstart]

Hi

Big bore headers might well lose you power. The important bit is the lengths and how they join, and careful choice of those gives you the power. Bigger bores just lose that advantage.

It is possible to design a decent quiet exhaust, and so only have tiny gains from changing the silencer. Most are pretty decent now (some such are 1200 Bandits are dire, hence an easy improvement there). On a normal large road bike don't expect more than a couple of % improvement, which isn't enough to really feel, but screw up the bottom end so the top end comes in with more of a rush and you will feel like you have gained power even if you have actually lost some top end (hence why a badly set up pipe giving a big flat spot in the middle can make people think they have gained power).

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[moto]

As always it is not as simple as I had hoped

I am not after gaining top end but am looking for more acceleration.
I have a single cylinder 4 stroke 600cc trail bike.

At the moment the bike runs very smooth so if I may only gain a couple of % by changing the silencer it may not be worth the hassle and expense.

[mad4it028]

what bike is it?
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always looking to buy bikes crashed ,unfinished projects,none runners pm me
currently riding kawasaki z1000 only bike ive ever loved

[Kickstart]

[That_Hornet]

As Keith said, Down gearing is a good way of increasing acceleration.

Stick a bigger rear sprocket on it. (Or smaller front, now thinking fronts cheaper...... do that one )

[Kickstart]