Thread: Porsche 997 C4S dynos before and after exhaust, headers, and custom OE Tuning tune, +18.4 AWHP
06-02-2011, 02:40 AM #1
Porsche 997 C4S dynos before and after exhaust, headers, and custom OE Tuning tune, +18.4 AWHP
The vehicle here used in the baseline is a stock motor 997 C4S on 91 octane. It does have 19 inch HRE wheels and lowering springs. The car was dyno'd first without any changes and then the AWE-Tuning exhaust and headers were added. After that, OE Tuning did their custom dyno tune. The car gained 18.4 whp from the baseline. Remember, these gains are at all 4 wheels on a dyno dynamics dyno in case you are wondering why a Carrera 4S is not putting out more. It is also a tiptronic transmission which you can see shift in the dyno and the trans does suck a bit of power.
06-02-2011, 03:36 AM #2Senior Member
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the headers & exhaust gains are pretty weak, I expected more.
but the Tune changes are good, shows you should go for a good tune in the first step not exhaust if you are on budget.
06-02-2011, 03:37 AM #3
wow the C4S is underpowered as $#@!, not bad gains for tune though...Some people live long, meaningful lives.
Other people eat shit and die.
I'm not racist, I hate everybody equally; especially fat people.
06-02-2011, 03:51 AM #4