T.T.I's vs. ........you be the judge

Just to clarify things, the TTI headers are "step" headers - 1 5/8"-1 3/4". They should provide better low end torque without sacrificing higher rpm flow due to the 1 3/4" step. This helps broaden the application range, street to strip. There aren't any dyno comparisons with them on 500+ HP engines that I'm aware of, but there have been examples of them working well @ 400HP & higher. Just no direct comparisons with other headers. A 1 3/4"-1 7/8" step, or even a 3-step starting with 1 5/8", would be interesting if they made a set.

Other benefits with TTI include elimination of the 90* oil filter adapter, tubes clear all readily available oil pans, including Milodon, and the materials used tend to be thicker than some of the other headers.

Several of variables to consider.