Adding aftermarket parts to your car or truck allows you to customize your ride based on your specific taste. From custom wheels and tires, performance shocks, struts and suspensions to spoilers and wings, there is no limit to what you can do to personalize your car. For those looking to spice up their car's look and sound, consider an aftermarket muffler.
Decide whether you want a direct fit or universal muffler. Universal mufflers will fit any automobile, but you may have to cut, weld and fabricate parts to make it fit your specific car. Direct fit mufflers replace the stock muffler perfectly with a simple bolt in installation.
Remove your old muffler. (See "How to Remove a Muffler," under Related eHows.)
Attach your new muffler using a ratchet or wrench to the exhaust where the old muffler attached. Usually there is a U-bolt holding the muffler in place.
Get your new muffler in place being loosely held by the clamps. Once you have checked it out and made sure you align it properly, tighten all the bolts.
Turn on the car and check for leaks. You will feel air escaping from the muffler attachment location if it isn't on correctly. If no air is escaping, lower your car and you've completed the job. If you feel air, you didn't install it properly. Turn the car off and realign.
