Clinton, you are spot-on with the concern about parts longevity of the TT and that's why I have been so giddy with the last changes we did - resulting in the Heffner V2. We are back to the OEM manifolds although coated in the latest titanium ceramic coating as well as the OEM heat shield for even more heat dissapation. The rest of the hot-side plumbing is also coated the same way and the flanges are even better than OEM. Pipe thickness at or better than OEM and, as I said, coated. The turbos are nestled in custom turbo-specific heat blankets. With less complex header plumbing (fewer tubes and surface area) we are afforded the opportunity for better line routing - far away from heat sources. As I tried to say (and maybe it was lost because I say too much), all of this "make-it-OEM-like" was the original justification. For sure, there was a non-trivial cost associated to it but to Apollo and others, the OEM-like reliability at probably better than OEM heat management, the cost was justified. This was the entire project goals. I began to suspect that we *might* see some performance benefits too and these far exceeded are nearly 0 expectations... because our priority was this reliability that you speak of. I have NO DOUBTS at all about the longevity of the system... and I am quite realistic about this. I think that this system is more flexible than the OEM set up (because of the easily adjustable boost), can be much LESS stressful to the engine - actually improving longevity and reliability, AND has better heat management than OEM. In brief, we've simply exchanged turbos for cats (and actually in the identical location allowing exploitation of OEM shielding) and we've blanketed the turbos so they are, on average, dissapating less heat and the entire exhaust is ceramic coated which is better than OEM. Save for the CARB sticker, this is as close to OEM quality, reliability as you can get IMO and a fantastic evolution of the Heffner kit. 1+1 = 3 is what I think best summarizes what was accomplished....
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