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Exhausts 101 & Why We are Digging Competition Werkes GP Exhausts


For those not well versed in motorcycle-speak, it may be hard to explain the appeal of a slip-on exhaust. Let's just say that for the hardcore riders, a good exhaust is like that shiny shirt a guy might wear to the nightclub to show off his muscles and get more attention.

It's not going to make up for skipping all those trips to the gym, and it certainly won't make him a better dancer, but it will make him look like he's got game. And yes, the ladies will be impressed.

In much the same way, an exhaust won't make you a better rider, but it will sound cool to the guys at Bike Night, or even when showboating with a Honda Civic down the main boulevard. The appeal for most people is in how much sound an exhaust can produce.

On a more serious note... trash talk aside, there are performance advantages to be made with a slip-on exhaust. Very few upgrades can deliver additional performance gains as well as a rock-star way to announce your arrival all in one shot. Rarely does an aftermarket upgrade manage to do both so effectively, so we need to give credit where credit is due.

If your goal for your motorcycle is improved performance, then design, weight, and material are all important considerations when selecting a slip-on exhaust.

But first, let's spend a minute to understand the muffler design and the benefits of installing an aftermarket exhaust. Bear with us as we get a bit technical:

A muffler is a necessary part of a bike that reduces engine noise in order to meet certain noise level regulations. The baffles inside the muffler trap generated sound waves and let them bounce back and forth until a series of sound waves cancel each other. However, a lot of backpressure is created in this process, which reduces the airflow through the engine and subsequently reduces the engine's performance. (Yes, backpressure may be good for certain applications but let?s proceed with this line of thinking since we're on the topic of maximizing performance, shall we.)

When this happens, fuel is less efficiently combusted due to increased backpressure from the muffler. Now add to this the regulation limiting the amount of exhaust pollutants produced by road-fairing motorcycles, and the muffler design ends up being a watered down version of the high-performing race application from which it was developed.

This is why an aftermarket slip-on exhaust is often the first thing a new sportbike owner will purchase, due to the immediate improvement in aesthetics, cooler sound, and ease of installation.

A slip-on exhaust is basically just a muffler with a small mid-pipe that replaces the stock muffler(s) on a motorcycle. Technically, an aftermarket muffler has less number of baffles, which reduces backpressure and improves the airflow, therefore letting the fuel burn efficiently and increasing the bike's power. They are also lighter which means a reduced power-to-weight ratio and another boost of power. However, not all slip-on exhausts increase horsepower.

The stainless steel Grand Prix-style (GP) slip-on exhausts from Competition Werkes are some of the industry's bests with their sleek aesthetics and positive effect on the bike's performance. Some features include:

* Unique design and aesthetics
* Lighter than the stock muffler
* Greater flow for higher horsepower
* Tapered baffles for better performance and advanced tuning
* Handmade welding from straight section tubing

The Competition Werkes GP slip-on exhaust is as light as a feather compared to your clunky anchor of a stock exhaust. With a high-quality finish and fit, it also produces a thunderous sound. It is constructed with carbon and stainless steel which gives an outstanding look to your bike.

See our Competition Werkes GP Exhausts here:
http://www.solomotoparts.com/Slip-On-Exhaust/?b=Competition+Werkes

By Daniel Relich

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