Your car's stock exhaust system is designed to restrict the engine's horsepower. The exhaust system also does a good job keeping exhaust noise down. You see, if you were to run an engine without an exhaust manifold on its exhaust ports, it'll sound like a ship entering a port. It's that loud.The exhaust system installed in the factory has two basic parts that reduce noise - the center muffler (a.k.a. 'resonator') and the rear muffler (a.k.a. 'silencer'). The resonator is in charge of toning down the exhaust noise, turning it into a melodic, low-pitched buzz. The silencer does as its name suggests - it silences the exhaust buzz.A car without a silencer is still bearable, but take away the resonator and you're in for a world of complaints from both your neighbors and passengers. You're probably going to tick off a lot of highway cops as well.If you want to keep the peace, make sure your center muffler is in good condition. Once your exhaust starts getting louder, grab replacement components here at Carparts.
• This muffler keeps exhaust noise down to a minimum.
• The muffler helps the exhaust system work more effectively.
• Our center mufflers are more resistant to corrosion.
Steps in Installing a New Center Muffler
A bad center muffler is quite easy to detect. Since it is the one responsible for lessening the noise the engine produces, you will hear low, booming or hissing sounds in your exhaust system if it is failing. More so, a great deal of soot or rust will develop on a bad center muffler. If you notice any of these signs, you need to buy a new one. You can even install it at the comforts of your home. Following are the simple steps.
Required skill level: Expert
Needed tools and materials
- Jack lifts
- Jack stands
- Muffler pipe bands
- New center muffler
- Ratchet set
- Reciprocating saw
- Socket wrench
- Torque wrench
Accessing the muffler
With the use of jack lifts and stands, raise and secure the rear part of the vehicle. Work under the vehicle and locate the muffler. Mark both sides of the muffler wherein it is connected to the exhaust pipe for three inches. Measure the distance between the two marks to know how long you need to cut the new muffler for it to fit.
Removing the old center muffler
With the use of the reciprocating saw with the correct blades, cut the old muffler out of the exhaust system. Vertically align the blades from the floor along the process. To ensure that the new center muffler will fit well, cut the old exhaust pipe with slow up and down motions.
Dismantling the tailpipe
Once the center muffler is removed, also take out the tailpipe from the car body. The tailpipe might be attached with bolts and bands. Remove these fasteners using the correct tools. Once removed, set the tailpipe aside if you are going to reinstall it with the new center muffler.
Installing the new center muffler
Slide the new muffler into the existing exhaust pipe. Have a muffler band on the end of the muffler connecting to the exhaust pipe. Once the muffler band is positioned well between the exhaust pipe and the new muffler, tighten its nuts with the use of torque wrench. Use the same torque on all the nuts to make sure there is no damage.
Mounting the tailpipe
Once the muffler is installed, mount the tailpipe to the other side of the muffler. Undergo the same procedure as when installing the muffler.
Center Muffler Specs That Buyers Have to Check
Your vehicle may roar too loud if not for the center muffler that cancels out engine noise. Aside from reducing noise, the muffler also minimizes back pressure, which can affect engine efficiency if there’s too much of it. Unfortunately, the muffler may rust or even fall off the vehicle when it hits an object on the road or when it wears out over time. When the muffler is no longer in great shape and is about to collapse, you should get a suitable muffler replacement.Different muffler materials
The center muffler can be made of any of these materials: stainless steel, aluminized mild steel, or aluminum. Out of all the options, stainless steel mufflers are the most durable as they resist corrosion, while aluminized mild steel mufflers usually last for about 4 years. Aluminum mufflers are lightweight but might get cracked or warped over time. Some mufflers may also be mixed with fiberglass or steel wool for better sound reduction.Standard vs. performance muffler
Standard mufflers come with the traditional back box design with chambers and cylinders. These mufflers are designed to bounce around pressure waves for cancelling out noise and to minimize engine heat and improve exhaust flow. They pass smog tests and meet most standards. High-performance mufflers, on the other hand, typically come in a straight steel pipe, which may be designed with louvers or perforations. They can enhance vehicle performance but may not reduce sound as effectively as standard mufflers. The various designs of performance mufflers include the bullet, perforated bullet, louvered bullet, chambered bullet, full case, cherry bomb, multiple baffle, and turbo mufflers. Standard mufflers are best for everyday driving while performance mufflers are best for car owners concerned with speed and vehicle performance in different conditions.Fit
Universal mufflers fit only some vehicle types. They don’t fit all vehicle models. Some of them might require modifications such as welding, cutting, and pipe bending. Look for a center muffler that fits your vehicle’s exhaust system. You may consult the vehicle manual for important details such as the size (length, width, and height), configuration, location, attachment, and other particulars in the design. Some mufflers maintain the stock sound level and factory finish; others provide better options. Direct-fit center mufflers can usually be clamped on with no modifications needed. Make sure they’re precision engineered and manufactured from top-grade materials for reliable structural integrity and good exhaust performance.
Sure Steps in Replacing a Center Muffler
Your muffler may no longer be up to snuff. It may be plugged with oil particles or rusted. It may be punctured with holes or may have collapsed when an object hit it badly. For sure, the damaged muffler will affect the sounds your vehicle makes and how it runs. If it’s time to replace the center muffler, here’s how:Difficulty level: ModerateThings you’ll need:
- Sockets with a ratchet wrench
- Hacksaw or electric reciprocating saw (or any similar cutoff tool)
- Ball peen hammer
- Jack and jack stands
- Wheel blocks
- Muffler sealant
- Exhaust clamps
- Penetrating oil
Step 1: Park the vehicle on a level surface. Set the transmission to park and activate the emergency brakes. Place wheel blocks under the rear wheels before raising the vehicle using a jack and supporting the frame with jack stands on each side.
Step 2: Apply penetrating oil on the nuts (and clamps for a clamped-on center muffler). Let this sit for a while before using deep wall sockets to loosen the muffler clamps.
Step 3: Free the muffler from the pipe on the rear and front. You may have to use a hack saw or electric cut-off tool for separating the pipe.
Step 4: Once the muffler is separated from the pipe, detach it from the hangers that secure it in place.
Step 5: Install the new center muffler. Check the instruction manual that came with the muffler. Installation is normally the reverse of muffler removal.
Step 6: Keep the ends of the pipe smooth. Its rear portion must be split to expand, and the new muffler’s rear end must slide into the pipe.
Step 7: Place the muffler onto the hangers and make sure it mounts properly.
Step 8: Coat the pipe at the front and rear with muffler sealant.
Step 9: Place new muffler clamps on pipe ends. The muffler must slip onto the ends. Once in place, set the clamps over the connections between the muffler and pipe. Use deep wall sockets and a ratchet wrench for tightening the clamps. Then, tighten the nuts. They must run onto the clamps on both ends.
Step 10: Take out the jack stands before lowering the vehicle with the jack. Remove the wheel blocks.
Step 11: Test the new muffler. Drive the car to see if the exhaust is making unusual noise and if adjustments should be done on the connection.