10 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHOrange cap mod
Leading reported evidence
Use yellow cap
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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Discussions that contain suggestions
1
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Suggestion
Maybe it's because your orange cap mod is using a yellow cap
Leading evidence: 'Use yellow cap' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use yellow cap' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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10 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
Not surprised with no improvement in preformance and wasn't expecting it since NA Porsche cars are pretty much maxed out.
with a real orange cap, no pun intended. LOL. Waiting for my ITG panel air filter from the UK. Can't really tell the difference in performance. As for the sound, I can't tell either since I already have the PSE.
Maybe it's because your orange cap mod is using a yellow cap
I have FisterD and you can definitely hear it especially over 5500rpm when VariCams kick in.
Feeling of wasted money? I know it well. Unfortunately, most mods usually are, adding little or nothing to performance only for esthetics. For these cars, worthwhile mods ( for perf) are expensiiiive!
Orange " or any other color" cap does nothing for performance it is purely to enhance intake sound by bypassing the resonator in the air box.
Also, you are 100% correct performance mods are expensive. Because really the only mod that works is selling it and buying a turbo or a newer higher HP n/a.
Had the top up yesterday and heard a louder roar after 5K. Couldn't hear much of it with the top down, probably drowned by the PSE. Anyway, not bad for $26 for a silicone hose. Not surprised with no improvement in preformance and wasn't expecting it since NA Porsche cars are pretty much maxed out. 87 hp per liter for a NA car from the last century is not bad, LOL.
I thought that there were some "perceived" performance gains if you removed the internal muffler that the orange cap is attached to since it adds some additional space in the airbox for better flow.
This is a source reference. Confirm exact model applicability in the original material.
