Seller notes

This pair of heat exchangers were removed from a 911SC years ago. Made by Triad industry’s as a performance upgrade to backdate restrictive factory exhaust. Bruce Anderson’s, Performance Handbook p134, shows dynamometer results. Primary flanges are 42mm at the top and taper down to 38mm ID tube, and left exchanger has an O2 bung. Exchangers have dings and dents from normal use and look ready to install. If installed on a thick flange engine the long exhaust studs will need spacers or stud re...

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