Why: because it sounds awesome, high airflow and is affordable
Current exhaust:
Flowmaster Muffler: $200
Tundra Resonance Silencer (free from my mechanic)
Basic pipe & chrome tip
Labor: $150
Total cost ~$350 installed. Spent other money on a K&N + other mods.
LISTEN FOR YOURSELF:
:uzi:
Steep Hill Climb @ Hollister (25 seconds)
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YouTube - Hill Climb 1st Attempt <--------------------------------
Short Hill Climb @ Hollister(30 seconds)
----->
YouTube - 01 Hill Climb short but great <---------------------------
BTW: The Tundra resonance silencer accomplishes one thing:
Eliminates the vibrating hummm while driving at low RPMs such as 70 on the freeway. With the flowmaster it sounds great but there is a humming noise in the cab that is really annoying whenever you are not wheeling. I do not know if the full cat-back systems like Borla have it but I suspect they do as well.
In 2008 I became so annoyed with this noise that I put the factory exhaust back on and instantly suffered a power-loss. Right away I put a new flowmaster on but the truck shop added a feature for free - a factory Tundra resonance silencer - this was welded in line with the exhaust. This allowed for the high airflow

&& AWESOME SOUND but also eliminated the low RPM humm.
What do you think?