I have the Helix Power Tower.Just installed it last sunday on my truck and have noticed a nice gain in torque from 3,000 rpm up,still slow but did notice it.Was a little sceptical about wasting the money but am happy I bought it now.I read in the instructions about the whistling but did not get that,damnit.
Yeah i was hoping do gain a lil low end from it. My truck already winds up like a rice burner because of my current mods and it takes for ever so the only way to get a good launch is to spin hard out of the hole to get the rpms up quick which wastes time and tires. I already have a whistling sound that can be pretty loud at times , especially when i give gas after shifting.
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