We like the deep, throaty demeanor of aftermarket high-performance mufflers on new Mustangs. The downside is that they're typically hard on our hearing, especially at highway speeds or at wide-open throttle.
Concerned about cabin noise levels, Corsa Performance Exhausts has found a way to lasso that awful drone (or reflective sound) and get it under control so you get that throaty roar out back without the dreadful harmonics inside the car. Corsa calls it Reflective Sound Cancellation, which uses aeronautical and space-age noise suppression technology.
With Corsa's RSC, exhaust sound waves are deflected inside the muffler without restriction and without fancy electronics. RSC incorporates a full 360-degree air gap within the muffler that allows sound pressure waves to escape, then be returned 180 degrees out of phase, which cancels specific sound frequencies. What comes out the tailpipe is crisp, clear V-8 sound and performance. RSC drowns the drone with the light and airy sound of a Mustang rocket ship.
We continue to be amazed at how easy it is to work on and modify '05-'09 Mustangs. These cars were designed in a spirit of cooperation between Ford and the aftermarket.
This is the Corsa Performance...
This is the Corsa Performance Exhausts muffler with Reflective Sound Cancellation technology. This outstanding exhaust silencer is fabricated of stainless steel and designed for the life of the vehicle without concern about rust. You can install these mufflers in about an hour.
With Corsa's Reflective Sound...
With Corsa's Reflective Sound Cancellation technology, unwanted sound remains where it belongs-inside the muffler. What you get is that deep, throaty V-8 roar on the outside.
To remove the existing mufflers,...
To remove the existing mufflers, first remove the pipe clamp. This is an aviation-style pipe clamp that doesn't compress the pipe, yet it secures the pipe. Removal is a snap.
Ford stuck the mufflers at...
Ford stuck the mufflers at the end of each tailpipe with pipe clamps that are easy to remove and install. Each muffler has two rubber-insulated hangers.
Removal of the muffler hanger...
Removal of the muffler hanger is done mostly by feel. You'll need a metric 14mm socket for this one. Take note of how these hangers are installed. You can get them backward and wonder why the muffler hangs too low.
Our '08 Shelby GT500 already...
Our '08 Shelby GT500 already has an aftermarket muffler package, but the owner complained of cabin resonance. Corsa has the solution.
Wrestle the muffler loose...
Wrestle the muffler loose as shown. The toughest part, if it can be called tough at all, is removal from the pipe.
This is the lefthand muffler...
This is the lefthand muffler hanger configuration. We're showing this in order to make installation easier. It's easy to reinstall these hangers backward, which yields baffling fit when hanging the muffler.
Insulators slip onto the muffler...
Insulators slip onto the muffler like this. If the muffler hangs too low, it's backward. Ask us how we know.
Corsa includes this packet...
Corsa includes this packet of molybdenum high-temperature grease to use at your pipe joint for easier fit and sealing.
Fit the Corsa muffler in place...
Fit the Corsa muffler in place and install the pipe clamp. Do not tighten yet.
Reinstall the hangers/insulators...
Reinstall the hangers/insulators using a 14mm socket, then tighten the pipe clamp.
The righthand side is virtually...
The righthand side is virtually a mirror image of the left. Remove the pipe clamp and insulated hangers.
Do you see what's wrong with...
Do you see what's wrong with this picture on the righthand side? The aft hanger is upside down. Both insulators should be up, not down.
Insulator/hangers are installed...
Insulator/hangers are installed on the muffler next.
The righthand muffler is installed...
The righthand muffler is installed as shown using a 14mm socket. This is best done by feel because the hangers are hard to see.
Reinstall the pipe clamp and...
Reinstall the pipe clamp and give it a good twist. Start the engine and check for exhaust leaks.