986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post

Steve Tinker · 02-20-2012, 07:20 PM

newt....
I fitted the header first a couple of weeks ago - no loss of torque @ lower revs and a definate pickup above 4,000rpm.
I then installed the secondary cat delete pipes last weekend - I'm still not convinced but I think there maybe a little bit less performance (less kick @ the 4,000rpm mark) but that is probably due to the pipes beng a larger diameter than the originals.
The sound is no different with the hood up but with it down there is a definate hard nosed "rasp" to the sound on acceleration.
Remember that we run ROW specs here in Australia, so the US results may differ.

02-20-2012, 07:20 PM	#4
Steve Tinker Registered User Join Date: Dec 2008 Location: Queensland, Australia Posts: 1,522	newt.... I fitted the header first a couple of weeks ago - no loss of torque @ lower revs and a definate pickup above 4,000rpm. I then installed the secondary cat delete pipes last weekend - I'm still not convinced but I think there maybe a little bit less performance (less kick @ the 4,000rpm mark) but that is probably due to the pipes beng a larger diameter than the originals. The sound is no different with the hood up but with it down there is a definate hard nosed "rasp" to the sound on acceleration. Remember that we run ROW specs here in Australia, so the US results may differ. __________________ 2001 Boxster S (triple black). Sleeping easier with LN Engineering/Flat 6 IMS upgrade, low temp thermostat & underspeed pulley. 2001 MV Agusta F4.