What does FMF exhaust stand for?

THE FLYING MACHINE FACTORY
Look around any motocross paddock anywhere in the world and you will see a number of brands that stand out above all others, and when it comes to exhaust pipes the FMF logo is one that is instantly recognisable and one that has stood the test of time and continues to flourish today.

Why do 2 strokes have big exhaust pipes?

That bulge is called an expansion chamber, and it is used to increase the horsepower of the engine (see this page for a photo). This technique only works on two-stroke engines, which is why you see it on a lot of dirt bikes but not on street bikes.

Do slip ons add horsepower?

Slip-on mufflers won’t improve horsepower or performance. Slip-ons are mostly for decoration and noise enhancement. Installation on some bikes may require bodywork done by a professional at a shop.

What is Power Bomb exhaust?

Description. The PowerBomb is a four-stroke header that incorporates FMF’s patented PowerBomb module. Increased performance and flow is achieved through the expansion and contraction of exhaust sonics. PowerBomb also helps to lower the bikes sound output.

What does a 2 stroke silencer do?

A two-stroke pipe uses its reflective pressure wave to keep the fuel/air mixture inside the combustion chamber. Most of this tuning is done in the pipe itself, but muffler length and diameter play a part.

Which is better FMF or Pro Circuit?

The Pro Circuit has a little more throttle to rear wheel connection down on low end, but the FMF pulls stronger through the mid range. Up on top end both seem on par with each other and of course both have less over-rev than the stock muffler.

Do I need a tune after new exhaust?

As mentioned, a little more information would be helpful. However, if you are replacing your stock exhaust with a cat-back system or something similar, no tune is required. On the other hand, if you are installing headers along with a high flow exhaust, then a tune is probably a good idea.

What does a FMF Megabomb do?

The Megabomb allows you to have the best of both long and short headers. You still get the better over-rev of a short header, but the added volume of the Megabomb allows your bike to still have an increase in low-end torque like that of a longer header. The sound output of race bikes is constantly being checked.

What does the FMF PowerBomb do?

FMF PowerBomb Header There are two functions within the PowerBomb chamber, 1: Acts like a pre-muffler to reduce sound level a bit, 2: increase in header flow= increase in power!! When the exhaust enters this chamber, it expands and then cools causing it to contract.