Quote:
Originally Posted by MikeNSX2
HKS Legamax Premium axle back: Easily the quietest of the three. Cold start sound is moderate. Volume level on a scale of 1 to 10 (1 being stock) is a 2 to 3. Sound quality is much better than stock. Has a nice bass tone. No drone at all. Tips really fill out the bumper and the blue tips look good on my silver BRZ.
Nameless Performance axle back (with the dual 5" mufflers): Cold start is fairly loud. Volume level is a 5 to 6 out of 10. Has a really nice tone to it (although not as nice as the HKS). No drone that I've heard. Tips are not as attractive as the HKS or the MBRP (I bought the carbon fiber tips version).
MBRP axle back (no mufflers): Cold start is LOUD. Volume level is a 7 to 8. Sounds much deeper than the Nameless axle back. The only time the exhaust sounds bad and has drone is when I accelerate to say 5000 to 6000 rpm and let off the gas and just coast. If I shift to a higher gear, the drone is minimized. At a constant cruising speed, there is no drone.
Based on what you want (improving the sound internally and externally, but not being too loud), my recommendation would be the HKS.
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This is perfect. Thank you for taking the time to write it up.