If you own a 2022 or newer Toyota GR86 or Subaru BRZ, you already know the flat-four boxer engine delivers playful, rev-happy character right out of the box. But the factory exhaust system holds it back. Built to meet strict noise regulations and everyday comfort standards, the stock steel muffler adds unnecessary weight to the rear end, chokes exhaust flow, and muffles the engine’s signature boxer rumble into a flat, uninspired tone.
For drivers who want an upgrade that feels intentional — not just loud — the Expreme Ti Type-D full titanium muffler kit (part number TB6090-SB05B) strikes a rare balance. It cuts weight, sharpens throttle response, delivers a properly tuned exhaust note, and brings a premium visual finish that cheap stainless steel systems can never match.
Titanium Isn’t Just a Buzzword — It Changes How Your Car Feels
The most obvious difference between this kit and standard aftermarket exhausts is its full titanium construction, and the benefits go far beyond bragging rights.
Titanium is roughly 40–50% lighter than stainless steel for the same structural strength, which means you drop noticeable static weight from the very rear of the vehicle. That reduction translates directly to more nimble handling: the rear end feels lighter through corners, turn-in is sharper, and acceleration off the line feels marginally quicker with less mass to move.
Material performance matters too. Titanium dissipates heat far faster than steel, keeping undercar temperatures lower even during sustained hard driving. It also naturally resists corrosion and road salt damage, so it will look and perform like new for years — even if you drive your GR86 or BRZ year-round in wet or coastal climates. Over time, the metal develops a subtle, unique heat patina that feels personal to your car, rather than a cheap painted finish that chips and fades.
Type-D Tuning: Sound With Purpose, Not Just Volume
A common complaint about aftermarket BRZ / GR86 exhausts is that they trade all daily livability for raw volume. The Type-D design takes a more thoughtful approach.
This kit uses a carefully sized straight-through muffler chamber paired with a smooth Y-pipe merge. The result is a deeper, richer boxer tone at idle and part throttle, with a crisp, raspy growl as you climb into the upper RPM range that rewards every rev. Cruising at highway speeds stays civil, with minimal drone that won’t fatigue you on long drives.
It’s loud enough to let you hear the engine work, but refined enough to not draw unwanted attention through neighborhoods. For daily drivers who hit the occasional track day or mountain run, this tuning hits the sweet spot: personality when you want it, quiet when you need it.
