TRD Sport Muffler - courtesy of www.scion.com

Back again for my second post!  This time around we take a look at the TRD Sport Muffler , an axle back made specifically for the Scion xD.   Let’s take a peak at what tools we need.

Tool Requirements:

Socket Wrench w/ 14mm socket.

Torque Wrench w/ 14mm socket

Hangar Remover (optional)

Your shiny new TRD Sport Muffler

Not really much required for this installation as it is a very straight forward one.

Included Parts:

TRD Sport Muffler

Auxiliary Rubber Hangar

So that’s the basic run down, moving on to the installation process.

Installation:

Uninstalling the stock muffler is fairly simple; lift the car whichever way you see fit (safely..please) and get under the rear, right side, passenger door.  You’ll see two spring-loaded bolts, the only ones you’ll be removing in this process.  Start unbolting them and once that’s done with, move on to the pulling off the hangars.  You can do this in two ways; remove the rubber hangars from the mounts on the chassis, or simply remove the exhaust from the rubber hangars, leaving them on the car.  I opted to remove the rubbers from the car itself to just swap onto the TRD.  If you don’t have the hangar removing pliers, fear not, get a good lubricant and push, they’ll come off with a slight struggle at most.

I should note, to make hangar removal/application easier, I took off the right, rear, wheel for more access; it’s not necessary, but it sure helps, even in unbolting.

Now here’s the fun part; scoot under the car and you’ll notice on the spare tire well area, there are two black grommets; about the size of a half dollar or so.  Remove the one furthest in (closest to your fuel cell) as this is where the afore-listed auxiliary hangar will be placed.  I suggest popping this in to the well area, rather than putting it on the muffler and then popping it in.  This can be a fairly complicated process, as the rubber hangar has a large cubic top section, where as the hole is a small circular cut out.  Remember those old wood cut-out toys?  Logic tells us that cubes don’t fit into circular areas.  Squeeze it in there as you see fit; it eventually goes in, it’s just a huge pain.

Once that’s in, make sure you’ve attached all the other hangars to the muffler or chassis, and fit the new axle back over the torsion beam and back to the mid-piping off the resonator.  With my muffler, after bolting it down and torquing it to spec (listed soon), you may notice there is a sizable gap between the mufflers’ flange, and the mid-piping flange.  It’s fine.  Make sure you have no leaks; I had a friend hold his hands around the flange area while I revved hard, and he assured there were no leaks.  If you have leaks, perhaps your muffler is crooked; straighten, and once there are no leaks, you’re good.

After all is said and done, ensure the spring bolts are torqued to 32.0 ft.lbs. (43.0 Nm)

Aftermath:

After swearing like a sailor through the auxiliary hangar installation, and being satisfied with no leaks from the flange section, you now have a nice and shiny new piece on your xD!  The tone is amazing, and for those of you who worry about a subtle yet aggressive tone, this is a great product for you.  The TRD Sport Muffler creates a slightly gruffer growl from the exhaust, nearly inaudible at idle, and growling its way up through the revs smoothly as you accelerate.  You’ll definitely enjoy being able to hear the deep grumble from inside the car as you drive; though for those who see it as a downside, you can still hear it slightly over your music.  Not so much over, as integrated within, but you’ll see what I mean once it’s installed, it’s nothing that bothers me at least.

Hope everything was comprehensive, this is a great product for the money, and will definitely give you that extra auditory “umph” you’ve been looking for.

Until next time; happy tuning, stay safe, and enjoy the ride.

-Corey

Tags: axle back, Sport Muffler, TRD