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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH02 sensor replacement and computer remapping for more fuel flow
Leading reported evidence
Replace being made the k&n will net 0
Suggestion or failed attempt
No successful repair reported for this finding.
0
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0
Unsuccessful attempts
1
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
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Suggestion
Without several other changes being made the K&N will net 0,
02 sensor replacement and computer remapping for more fuel flow
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Leading evidence: 'Replace being made the k&n will net 0' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace being made the k&n will net 0' (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.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
Most "tuners" will hide behind the right to keep the "intellectual proprietary knowledge" a secret as a reason not to tell you what changes they make, but for me it is a reason NOT to buy their product/products.Plus you don't know what you are buying and if it will deliver as promised untill AFTER you have spent your money...You are just paying for their reputation and promises, and the faith in them will determine how much you will pay for said promise/reputation.
02 sensor replacement and computer remapping for more fuel flow
Replace tune makes
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
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0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
I would not buy a tune unless I knew exactly what changes the tune makes to the Factory program,ie, does it increase the timing 3 degrees (19* to 21* at WOT?) or AFR ( 12.5 afr to 12.0 afr?).
02 sensor replacement and computer remapping for more fuel flow
Replace they make
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
Most "tuners" will hide behind the right to keep the "intellectual proprietary knowledge" a secret as a reason not to tell you what changes they make, but for me it is a reason NOT to buy their product/products.Plus you don't know what you are buying and if it will deliver as promised untill AFTER you have spent your money...You are just paying for their reputation and promises, and the faith in them will determine how much you will pay for said promise/reputation.
02 sensor replacement and computer remapping for more fuel flow
Replace tune makes
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
I would not buy a tune unless I knew exactly what changes the tune makes to the Factory program,ie, does it increase the timing 3 degrees (19* to 21* at WOT?) or AFR ( 12.5 afr to 12.0 afr?).
02 sensor replacement and computer remapping for more fuel flow
Coverage and how to read this overview
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
17 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.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261027T192637Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Has anyone tried switching out the 02 sensors and remapping the computer to get more gas flow. I spoke to my mechanic and he said this would add a lot more hp and he would not need to changeout the fuel rails or injectors. Has anyone tried this mod as I have a 2002 with a cold air intake and fabspeed exhaust. The cost is about $800 for what he claims is a 20%+ hp gain.
snake oil sales and bore scoring problems...and you do not have a cold air intake unless you have the stock air filter box with snorkle
Here is what I'm talking about
: you take a highly engineered Porsche flat six that develops close to 300HP as is and then spend $$$ trying to squeeze 20% more HP by flooding the cylinders with additional fuel? That additional fuel above and beyond what Porsche engineers (air/fuel ratio) came up with will probably wash all the lubricating oil off your cylinder walls and you will score your cylinder walls very quickly. Like others have said, you gain much more by learning how to drive your car more quickly at PCA events.
I would not buy a tune unless I knew exactly what changes the tune makes to the Factory program,ie, does it increase the timing 3 degrees (19* to 21* at WOT?) or AFR ( 12.5 afr to 12.0 afr?). Most "tuners" will hide behind the right to keep the "intellectual proprietary knowledge" a secret as a reason not to tell you what changes they make, but for me it is a reason NOT to buy their product/products.Plus you don't know what you are buying and if it will deliver as promised untill AFTER you have spent your money...You are just paying for their reputation and promises, and the faith in them will determine how much you will pay for said promise/reputation.
i had considered a tune to get more Hp, but decided instead to get a top rated radar detector/laser diffuser and drive my c4s as if it had more Hp. very happy with my decision to date.
I do have an after market K&N cold air intake. The previous owner took out the old air box and yes, I know there are a lot of comments on switching these out. It came that way when I bought it. I am wondering if anyone has tried this as the mechanic said he has done this a lot. I just want to talk to someone who has done it. I imagine there will be increased wear on the cylinders, but adding a turbo or supercharger would also increase the wear.
Without several other changes being made the K&N will net 0,
Not my opinion but the opinion on the web pages of the top
Porsche engine builders on 2 continents. YELMV (Your engine life may vary)
The Porsche OEM airbox and snorkel are designed to draw air from outside the engine compartment , thus the “cold air” label. The K&N system eliminates the snorkel and draw air from the engine compartment which is definitely not cold air!
