ATR vs TA Header Size

[SpeedRacerX]

Are ATR headers bigger than the TA 3-bolt race headers, i.e. is downpipe clearance different between ATR and TA??


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[jasjamz]

The downpipe options are better with the TA Headers due to the relocation of the merge pipe. As far as runner volume Im not sure which has more. I wish I had the time to back to back the stock manifolds vs various headers on the same car at the without any other changes to see the losses or gains. I tell everyone stick to stock manifolds until you keep cracking them on passes trapping 130mph and up.