12 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHAPR 3.4 Stage 1 Tune
Leading reported evidence
Replace there is no significant tuning gains
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
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
Without changes ,, there is no significant tuning gains on the 996,
Leading evidence: 'Replace there is no significant tuning gains' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace there is no significant tuning gains' (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.
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.
12 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: 20261026T120458Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Curious to know what this community thinks about APR. I came from turbo FSI VW world, where APR are the leaders in 'safe and stable' tunes with increased diagnostic functionality via the cruise control stock. I noticed that they had a 3.4 tune/package that included a rather large punch for 999. I don't necessarily care to add any power to my recently refreshed/serviced motor, but I'm always interested in experience of others.
GoAPR Upgrade
Fair enough. I was more so fascinated with the idea of proven performance in a single kit for sub $1K with the software that comes with it. Thanks for the input!
That software tune
won't
work in a '99 C2 - it has a cable throttle and cannot be software modded. You'd be much better off putting the $$ into various material and component upgrades you can find in this forum.
There�s not much to tune on a stock M96 motor, and there isn�t much to gain without improving the whole system. Might as well get a 996tt for the hassle and the money.
Thanks Gents! I currently have no more need for power, but I'll read up on the improvements as I'm still new to the 911 platform. I've heard to keep the factory airbox and not fool around with CAI, which is different from all my other 16 vehicles before this one. hah
Without changes ,, there is no significant tuning gains on the 996,
You need at least a throttle body/plenum,headers.sport exhaust
With a drive by wire throttle youv'e also drawn the short straw as your ECU is
what we refer to as a One Year Wonder, so no profit in setting up to tune it.
its also the oldest version of the 996 ecu family.
Most of the Porsche engines in the 911's are already tweaked pretty well by the factory.
there
might
be 20 HP in that engine tops that you can get at without the engine physical mods and
it likely will drive things pretty close to the edge. When you consider that your 3.4 is making 1/3 more power than a
3:0 BMW from the same year,, and the amount of power the full monty Dinan kit adds for like 5k+
our not doing too bad.
Cheers ,, enjoy the car!
This has been talked about a lot. I have called everyone of those companies listed in this thread some of them more then once because people said they did do it and I called to pin them down on yes or no. NO ONE will tune the 99.. period. Unless its a special favor out side of there company cuz they feel like being nice. Thiers nothing stopping these tuners from doing it from what they all told me. "Ya we can tune them, not complicated about it. but we just don't want to" Why they all feel like that ... I don't know.
I had mine tuned just as such and I was told not to share with anyone who did it as he did not want the business for tuning 99's. According to him I picked up 14 to17 hp ... this really is a waste of money and time trying to find these few people in the states who will tune it. I spent around $600 if I remember right.
I still have the "my genius" tuner thingy if anyone wants .. $50 bucks and its yours.
I then spent about $4k in suspension, short shifter, exhaust, etc. and made the car FUNNER to drive vs faster. now that all the stuff is done, for a quicker 911.. I'm doing the engine swap
Just my 2 cents.
This is a source reference. Confirm exact model applicability in the original material.
