986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Top Speed Bypass pipes initial impression

Steve Tinker · 09-22-2012, 08:17 PM

shadrach...
You are correct, the two pipes are different lengths - as are the Porsche originals when you remove tham and look at them side by side.....

sb01box...
When I fitted the test pipes, the gap between the 2 flanges was quite small say 5 - 10mm (1/4 - 1/2") which pulled up easily. I guess if I had pulled and pushed the pipes out of the muffler entry by hand, I could have possibly closed the gap - as it was I was tired and just used the 3 bolts to slowly pull the flanges together.
I rechecked the bolt / head stud tenioning last month after 3,000km and there ware no signs of leaks, cracking or metal fatigue that I could see.

09-22-2012, 08:17 PM	#10
Steve Tinker Registered User Join Date: Dec 2008 Location: Queensland, Australia Posts: 1,522	shadrach... You are correct, the two pipes are different lengths - as are the Porsche originals when you remove tham and look at them side by side..... sb01box... When I fitted the test pipes, the gap between the 2 flanges was quite small say 5 - 10mm (1/4 - 1/2") which pulled up easily. I guess if I had pulled and pushed the pipes out of the muffler entry by hand, I could have possibly closed the gap - as it was I was tired and just used the 3 bolts to slowly pull the flanges together. I rechecked the bolt / head stud tenioning last month after 3,000km and there ware no signs of leaks, cracking or metal fatigue that I could see. __________________ 2001 Boxster S (triple black). Sleeping easier with LN Engineering/Flat 6 IMS upgrade, low temp thermostat & underspeed pulley. 2001 MV Agusta F4. Last edited by Steve Tinker; 09-22-2012 at 08:26 PM.