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Old 01-25-2012, 03:18 PM   #1
Steve Tinker
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Join Date: Dec 2008
Location: Queensland, Australia
Posts: 1,522
Installing new headers/pipes without removing muffler

I'm just about to install new headers and cat delete pipes (but retain the rear muffler) on my 2001 S.
Before I squeeze my old bones under the car, I need a couple of pointers from people who have already completed the installation.

I assume that I can remove the headers first and then pull out the cat section of the exhaust system without actually removing the standard muffler (at least I hope I can - I don't want to remove the muffler on my own if I can help it).
Looking under the car, will I have to remove the 2 x diagonal brace rails and aluminium plate below the gearbox to help with the removal / installation of the pipes?
The plan is to a) remove the rails and plate, b) remove the headers - no O2 sensors in Oz, c) remove the cat pipes / O2 sensors after unbolting at the muffler.
I assume the installation (as they say) is in reverse order.
And can I reuse the header bolts - assuming they come out OK?

Any handy hints greatly accepted.
2001 Boxster S (triple black). Sleeping easier with LN Engineering/Flat 6 IMS upgrade, low temp thermostat & underspeed pulley.
2001 MV Agusta F4.
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