WTB: Fabricated -6 Headers and Heater Boxes Options

[earossi]

Does anyone on this board fabricate or know of anyone that fabricates -6 headers with incorporated heater boxes? I am looking for a set of headers for a 3.2 Carerra motor. Tubing size should be 1-5/8". Headers should have a properly flanged heater box, preferably made from stainless.

[rick 918-S]

So much about nothing. You wouldn't put a heater box on junk headers. If you run the flaps and the heater is off there is nothing coming through the ducts. When you turn the heater on the fan on there is pressure in the system. The pressure leaks out around the heater boxes at the pass through points blowing fresh air out around the pipes. If you install the heater system as Porsche did with a seal around the engine and pull air from the top of the engine bay as Porsche did you should have no worries.

I have seen 40 year old stainless heat exchangers with holes in the exhaust inside the clam shell covers. It even happens to them. Just be smart about it and don't let your car turn into crap.