Can't comment on how they run compared to other headers because it's the only ones I have used.
But I have never scraped my Hedmans on the street. I have never burned a plug wire on 5 or 7 (just route the wire under the tubes). Plugs are as easy to remove and install on 5 & 7 as any other plug in the engine (use 5/8" hex magnum plugs). Both full size and mini starters can be installed/removed without issue. I haven't had a leak in 20k miles and counting.
At over twice the cost of coated Hedmans and almost 5 times the cost of painted ones the TTI's don't sound so good to me.
