986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - What is the tube between the air box and plenum called?

ChrisZang · 03-23-2010, 06:51 PM

So I finished my little DIY hi-flow intake project
I cut the original intake next to the Helmholtz resonator and replaced the part with a 45 degree silicon knee from eBay ($20) (see picture)

Results:
a) Performance gain/loss: No gain and no loss
I did 4 timed 30 to 60 runs in 3rd gear with same results before and after

b) Sound:
Not a dramatic improvement, but the orchestra that starts playing in my intake above 5,000 RPM has added at least one more Trumpet player to the mix

So overall, not bad for a few bucks

03-23-2010, 06:51 PM	#4
ChrisZang Registered User Join Date: Mar 2006 Location: San Carlos, CA 94070 Posts: 1,450	And the results are in So I finished my little DIY hi-flow intake project I cut the original intake next to the Helmholtz resonator and replaced the part with a 45 degree silicon knee from eBay ($20) (see picture) Results: a) Performance gain/loss: No gain and no loss I did 4 timed 30 to 60 runs in 3rd gear with same results before and after b) Sound: Not a dramatic improvement, but the orchestra that starts playing in my intake above 5,000 RPM has added at least one more Trumpet player to the mix So overall, not bad for a few bucks __________________ I still wave at Boxsters, but they no longer wave back :-( 2002 Boxster S "Violet" (sold but not forgotten) 2009 Carrera 4S "Kelsey" (current ride) 2015 FIAT 500e "Nikki" my commuter car Last edited by ChrisZang; 03-23-2010 at 07:38 PM.