Stock exhaust manifold, meaningful to clean up edges?
#16
This is what we did...ported and ceramic coated - they have been on the car for 7 years and about 75,000 miles without failure. Stephen did a nice job on these.
That said, I have never heard of a ported set of OEM headers failing - only speculation that it may happen. I think history shows you are more likely to have a header failure if you upgrade to an aftermarket header vs. port your own.
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991.2 GT3 RS Weissach Racing Yellow
991.2 Turbo S GT Silver
991.2 GT3 Chalk (Manual)
2022 Cayenne White
former 1972 911T white, 1984 911 3.2 Targa black, 993 cab white, 993TT arena red, 993TT silver, 996TT speed yellow, 991.1 GT3 white
www.speedtechexhausts.com
info@speedtechexhausts.com
Testimonials facebook SpeedTech Exhaust Videos
991.2 GT3 RS Weissach Racing Yellow
991.2 Turbo S GT Silver
991.2 GT3 Chalk (Manual)
2022 Cayenne White
former 1972 911T white, 1984 911 3.2 Targa black, 993 cab white, 993TT arena red, 993TT silver, 996TT speed yellow, 991.1 GT3 white
www.speedtechexhausts.com
info@speedtechexhausts.com
Testimonials facebook SpeedTech Exhaust Videos
#17
HEY,,,Did you ever look to see how small that inner diameter is in the collector area??.....And when you see how some of them were welded up with big weld beads around there,it is even a smaller I.D. there...Porshe changed the way they were welded them in the later models....Cleaner welds and less weld material everywhere....AND they still held together...
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08-19-2015 12:27 PM