Quote:
Originally Posted by Tuco Ramirez
Has anyone slapped a cheap bullet muffler in to see if it helps with the supposed drone?
That’s my plan when I install mine next weekend.
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The muffler is the primary differentiation between the regular exhaust and TRD. Why not just go custom and save a bunch of money? The TRD is overpriced for what it is. I have it and it's fine, but not exceptional. I'm thinking about adding a Helmholtz resonator to mine. Typically drone isn't caused by the muffler itself, but the sound wave function leading to the muffler - which is why it's heard closer to your seat than the rear of the vehicle. The Helmholtz resonator when placed just passed the Y-pipe is a 1/4 or 1/2 wavelength oscillator, effectively offsetting and canceling the primary sound wave.