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Showing posts with the label Exhaust Performance

What is an Axle Back Exhaust?

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As the name implies, a bolt-on axle back exhaust system starts at the rear axle. Everything from the rear wheels to the mufflers tips can be included in this kit. A cursory examination of an upgraded aftermarket exhaust system that uses axle-back piping reveals powerful rear-end enhancements, including big improvements over factory stock parts, but no intermediate pipes are included in the package. Let’s tackle a hypothetical example of this abbreviated design profile. What is an Axle Back Exhaust System? It’s the muffler, pipes, and all associated parts as far back as the rear axle. Large and attractive muffler tips fall into this product category, as do the short sections of pipe that couple to the mid or intermediate pipe. The focus, therefore, is on supplying a superior rear-end kit, something that looks good and is capable of providing an enhanced final stage exit aperture for spent engine gases. When Axle Back Configurations Just Make Sense When replacing factory-installed pip...

What are Pacemaker Headers?

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If you’re wondering about Pacemaker Headers , don’t attempt to puzzle out this term by yourself. You’ll end up visualising an electronic gizmo that’s intended for an ailing heart, and you’d definitely be on the wrong track. This is a brand name, a car enthusiast vendor that manufactures exhaust system headers . Australian built, Pacemaker pipework is built for performance, thanks to a pipe-over-cone feature that edges out the competition. A Header Refresher As you probably recall, engine headers bolt on to the exhaust manifold in your vehicle’s engine. The object of the uniquely profiled back pressure reducers is to give each cylinder its own discharge path, with the channels then blending into a single thick bore tube. When you install a header system , you’re taking the load off the cylinders by endowing them with their own outlet channel, one that then combines attractively with its peers to quickly dismiss all exhaust gases . In appearance, the pipes make your vehicle look ...

Tips for Choosing the Right Exhaust System that will Match Your Engine Capacity

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Exhaust system modifications produce readily accessible engine efficiency gains. In essence, wide diameter pipes and bolt-on kits act as a gateway to increased performance. One moment, though, these alterations only work properly if the car’s engine capacity is matched with the right exhaust system . Otherwise, you reach a point of diminishing returns where performance gains flat line. Here are some handy tips for avoiding this horsepower plateau. Squeeze the Engine for Extra Horsepower If the exhaust system is open to modification, then so is the engine. Properly establish the engine’s capabilities before turning your attention to the exhaust system. Turbochargers and customized cold-air intake mods involve extra parts, so keep that added expense in mind. If that added expenditure doesn’t ring your bell, then pull the vehicle into your local garage for a full computer tune-up. Basically, push the engine’s power train to its limits before going to work on the breathing ch...

Legal Decibel Emissions for a Car Exhaust

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A deep sense of satisfaction slips through your vibrating bones when your exhaust system lets rip , but that happy grin rapidly drops away when you enter a residential district. Clearly, your car exhaust is generating too much noise. It’s breaking some local ordinance and upsetting your neighbours. Let’s pacify that street full of howling dogs and angry residents by making sure your exhaust noise level is street legal. Gain Some Noise Perspective The decibel scale measures sound intensity. The loudness of the sound is calibrated across a logarithmic scale, but we don’t really need to know the mathematics behind the science. Suffice to say, we have a measurement system for sound intensity, and we also have several reference points that illustrate key points on that chart. If you’re listening to a regular conversation, you’re experiencing 60-dB (decibels) of loudness. A crowded party ramps that figure up to 70-dB. It’s at this point that you really recognize the sound as an irrit...