I've heard 2 or 3 with Indys...they make the idle 'lower and tougher' and the sound at wot, 'thicker', not much louder. When I say 'thicker', it's just that, an unfocused loudness that to me, doesn't make cruise or wot loud to a point that is negative...anything but that
I have long tubes and Corsa Indys on my head and cam car. Idle is mean, wot is the loudest I've heard on a Vette (louder than the PRTs or Borla XR1 Race on head and cam cars that I compared to at a track) and still stock quiet on the hwy. The best of all worlds! :cheers:
Thanks Charmed. We picked up about 80 rwhp and 60 rwt over bone stock. I do not have underdrive pulleys or a wild cam. The car makes it's power over a flat torque band and idles like stock. Went for a road race set-up rather than an all out drag race hp set-up.