Reply to "180 degree header question."

bosswrenchMember

Use a shield- aluminum or ss. A 180F temp reduction with Jet-Hot coating or other similar- isn't enough if you actually intend to drive the car. The exhaust gasses are around 600F coming out the mufflers & even hotter closer to the engine. One GT-5 clone ran a Silver State event (92 miles of higher speeds over about 45 minutes of running), and at his speed with early tilted-up muffler tips, the Pantera's airflow swirl in back blew the exhaust back against the rear of the car. Both taillight lenses visibly MELTED!

I once built a garage exhaust collector for winter tuning inside, using my stock GTS mufflers with straight-out tips. 50:50 solder holding the log collector together melted & dripped off at 1000 rpm idle within a few minutes. I had to redo it using braze. High-temp 50:50 solder melts & runs off at 420F.

10/18/151:57 PM

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