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I just finished my install of a new top end. Head ,turbo, intake, throttle body, header. I am disguisted with the ATR header. Mine was cracked out of the box. I had it welded and put it on and it was warped. I took it off and found more cracks. I sent it out and had it repaired again and had reinforcement straps installed and it is holding together now but since new it only has 300 miles on it. The header is also quite noisy almost tinging sounding. I guess this has to do with the thin material. I am not telling anyone not to buy this unit but I will never buy another one. I am going to leave it on as long as it holds but if it breaks again it is getting thrown in the trash and I will put my ported E6 back on.
Recomend caution
Recomend caution