por911t
Member
Ive got a 2003 996 C4S fitted with the PSE option - Ive disconnected the vacuum pipe that stops the exhaust flap closing between 40 & 65 (ish) MPH and now I can enjoy the full and melodic tones of the flat 6 without interuption - does anyone know of any possible long term damage caused by running with the vacuum pipe disconnected - with my broadest imagination I can see why it should cause grieff but always better to check !! - Thanks for any advice,