Shop4Exhaust.com - The expert shop for all high performance exhaust needs.

Types of Mufflers

A muffler is a part of a car's exhaust system that is designed to reduce the amount of noise that an engine produces. Performance mufflers not only seek to reduce sound levels, but to also reduce back pressure. Adding a performance muffler to your car or truck can increase your engines performance and efficiency. They can also help to reduce wear on engine components, by reducing engine heat and boosting exhaust flow. Another advantage of a performance cat-back or muffler replacement is that it improves the sound of your exhaust, so that your exhaust note is more aggressive...

Exhaust Heat Barriers

Thermal exhaust barriers are used to block heat from the exhaust system from being transfer to a cars engine bay. The primary purpose of this heat reduction is to lower intake air temperatures and increase engine horsepower. But it also has secondary effects such as reducing heat damage to engine bay equipment and allowing the engine compartment to cool down more quickly. Preventing this heat exchange also has the benefit of raising the exhaust temperature and increasing exhaust velocity. Some exhaust heat management devices are heat shields, heat wrap...

Performance Catalytic Converters – What is it?

If you have to replace your cat you have options. If your car is 10 years old or older and your local requires annual testing for automotive emissions to pass inspections, you may have already heard the words; you need a new catalytic converter. If you haven't, you soon will. Why not choose a performance catalytic converter? Catalytic converter facts and answers...

Performance Headers – Long Tube vs. Short Tube

When selecting the length and diameter of the primary tubes you must know your application well. Tubes that are too large will cause the exhaust gas to expand and slow down, decreasing the scavenging effect. Tubes that are too small will create exhaust flow resistance which the engine must work to expel the exhaust gas from the chamber, reducing power and leaving exhaust in the chamber to dilute the incoming intake charge. Since engines produce more exhaust gas at higher speeds, the header(s) are tuned to a particular engine speed or rpm range according to your application.
Learn more about header length and exhaust tuning...

Finding and Fixing Exhaust Leaks

Whether you have a full aftermarket exhaust system or an OEM setup, no-one wants a leaking exhaust. A damaged exhasut can cause rough idling, loud noise, and sluggish engine performance. Some symptoms that your pipes may not be properly sealed include smelling or seeing exhaust or gas as you drive your car. In the case of a larger leak you may see large amounts of exhaust smoke bellowing from the engine bay or the sides of your vehicle. Big leaks, before the car's mufflers and catalytic converters, can make your cars...

Stock Exhaust Manifold vs Aftermarket Headers

Most people know that replacing their factory exhaust manifold with a set of aftermarket headers is one of the best bolt on upgrades they can do to their car or truck. But many people may not know that headers are built differently than OEM manifolds or that they offer benefits beyond just adding horsepower and torque. Nearly all new automobiles roll off the assembly line equipped with an exhaust system that serves the purpose of decreasing noise levels, reducing emissions, and transporting the exhaust gases from...

Exhaust Cutouts

An exhaust cutout is a type of bypass valve that can be fitted to an exhaust system, in order to divert exhaust flow and allow exhaust to exit before it has traveled the entire length of the exhaust. Exhaust cutouts allow you to choose between the closed position, when the exhaust system operates normally and the open setting in which the exhaust is wide open. When the exhaust path is shortened, back pressure is decreased, making it easier for the engine to operate and leading to an increase in horsepower and torque. The biggest advantage of cutouts is that you can choose between...

Shop4Exhaust Now Carries Roush Performance Exhaust

We are proud to announce that Shop4Exhaust now carries Roush Performance exhaust products. For those who are not familiar with Roush, they make high performance editions of late model Mustangs, as well as individual aftermarket parts for the Ford Mustang, Focus, and F-150 trucks. Currently, Stage 1, Stage 2, Stage 3, and 5XR editions of the 5.0L Mustang are available from select dealers. Both the Stage 3 and 5XR cars feature an Eaton supercharger that produces...

Shop4Exhaust Now Carries Solo Exhaust

We are proud to announce that Shop4Exhaust now carries Solo Performance Exhaust. For those who are not familiar with Solo, they make high quality stainless steel exhaust systems for late model vehicles. The company was founded in 2002 by team of experienced installers, designers, engineers, fabricators, and marketers with the goal of producing the highest quality exhaust systems on the planet. Solo's team has over 400 years of cumulative experience gained in the various facets of the aftermarket exhaust industry...

Ford Mustang 4.6L GT / 5.4L GT500 Cat-Back Exhaust

The Flowmaster name is synonymous with high quality, yet affordable exhaust products for a wide variety of cars and trucks. One of their newest bolt-on exhaust systems is part number 817494 for the 205-2010 Ford Mustang 4.6L GT and 5.4L GT500. This system is a welcome addition to the American Thunder line and is a true cat-back exhaust with dual 3” mandrel bent, stainless steel exhaust pipes. After the exhaust makes its way through the OEM catalytic converters it enters the Scavenger X-pipe through 2.5” connections...

Camaro Hushpower Axle Back Exhaust

For those who want more basic exhaust system than Flowmaster's American Thunder cat-back, Flowmaster offers their 819106 axle-back system for the Camaro SS 6.2L LS3 / L99 V8. This Hushpower system produces a mild exhaust tone and features 3” piping, with Pro Series "Shortie" mufflers. As a result, this axle-back will increase horsepower and torque on your 2010-2011 Chevrolet Camaro SS. For a great finish, this axle-back kit ends with 4” polished tips and the entire system is constructed from 409S. A ten year warranty is...

Camaro American Thunder Cat-Back Exhaust

Chevrolet's new Camaro is top contender in the highly competitive American muscle car market. The 2010 and 2011 models offer drivers a powerful and technically advanced 6.2L LS3 or L99 V8 engine, at a reasonable price point. As you may have noticed, the new Camaro SS is also a popular target for new product releases by aftermarket parts designers. Flowmaster has followed this trend, with the release of their American Thunder cat-back system for the 2010 and 2011 Camaro SS. Flowmaster manufactures two cat-back systems for...

2009-2011 F-150 Flowmaster Cat-Back

If you are looking for a 2009-2011 Ford F-150 cat-back exhaust system that is easy to install and sounds tremendous, consider Flowmaster's 817478. This new Force II system is constructed of 409S stainless steel and uses a Super 50-Series muffler to enhance your truck’s exhaust tone. The exhaust is first routed by a 3” diameter pipe that connects to the muffler, and then the muffler splits the exhaust into two 2.5” pipes that feed the dual tailpipes. This exhaust kit comes with pipes to orient the tailpipes in either side rear, or true rear exit...

Nissan Titan Flowmaster Cat-Back Exhaust

New- for Nissan truck enthusiasts, Flowmaster has expanded their American Thunder series to include a cat-back exhaust kit for the 2004-2010 Titan 5.6L VK56DE V8, with the 5-speed automatic. This system is welded from 409S stainless steel and is covered Flowmaster's 10-year warranty, so it will be just as reliable as your Nissan Titan. Also like your Titan, this system was built in the USA. The 817485 kit, is a true dual exhaust system with 2.5” piping diameter, a 70-Series muffler with dual inlets / outlets...

2011 Ford Mustang 5.0L Flowmaster Axle-Back

For those lucky 2011 Ford Mustang GT owners, Flowmaster has just introduced its new American Thunder axle-back exhaust kit for the 5.0L V8 Coyote. Adding additional horsepower, improving sound, and boosting gas mileage is what this axle-back exhaust kit is all about. It features two chambered mufflers provide an aggressive sound that is well suited for those who don't mind hearing their engines. A set of twin 4” tips are included. The system is made of 3” diameter 409S stainless steel mandrel bent tubing. American...

2005-2010 Toyota Tacoma Flowmaster Cat-Back Exhaust

The 2005-2010 Toyota Tacoma is yet another popular truck that Flowmaster has added to their American Thunder line up of cat-back exhaust kits. This model, part number 817432 increases horsepower, torque, and extends mpg on trucks with the 4.0L V6 engine. Because its manufactured by Flowmaster, you get an exhaust kit that is constructed from 409S stainless steel and backed by a ten year warranty. This exhaust kit uses a Super 50 muffler and dual mandrel bent 2.5” piping to suppress and improve the Tacoma's exhaust note. Each tailpipe terminates with a highly polished 3”...

2011 Ford Mustang 3.7L V6 Flowmaster Axle-Back Exhaust

Flowmaster has just released their axle-back exhaust system for the new 2011 Ford Mustang 3.7L V6. Flowmaster's Force II Axle-back PN 817497 is dyno proven to increase your engines mid range power. To enhance the Mustangs sound, Flowmaster selected specially tuned dual 60 Series mufflers for the 817497. Overall, this kit will provide a streetable moderate exterior tone and a moderate interior exhaust note, for comfortable daily driving. For a sporty look, this axle-back includes 4” polished exhaust tips...

2011 Mustang GT Bolt-on Power Gains

Ford's 2011 version of its famous grand touring car shares the same advanced 5.0L, 302 CID V8 engine that made its debut on the 2010 models. Although, the 5.0L Coyote V8 shares the same “5.0” branding as the Fox body Mustang from the 80's and early 90's, it is actually slightly larger in displacement(the others were actually only 4.9L). The new power power plant also features advanced technology such as a Twin Independent Variable Cam Timing or Ti-VCT system, a 11.0:1 compression ratio, a forged crankshaft, a lightweight composite intake manifold...

NMRA/NMCA Returns to the Traditional Championship Point System

The NMRA and NMCA series are pleased to report a change in the championship point systems for racers vying for a Nitto Tire Diamond Tree championship ring. After a few years of the Race For the Rings, a championship competition similar to NASCAR’s Chase and NHRA’s Countdown, the system was not well received. “We are going back to our traditional point systems because the core of our supporters prefers that method over the Race For the Rings that we ran...

Have Us Install Your Exhaust System & See Your Car Here

At Shop4Exhaust’s installation center we want to make sure that every exhaust system or set of headers we sell is installed properly. During your installation we make detailed photo records and often post installation photos on the web after the job is done. Schedule your installation today and you could be reading about your car here! Learn more about our exhaust installation facility...