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Originally Posted by 23109VC
i'll be anxious to see the results!!!
you have an S - my car is only a 2.7L base - 217hp...so whatever gains you see - i'll have to expect less.... lets hope you see massive gains!!
are you doing any kind of ECU flash or just bolting on the system? is your system the entire thing - headers/midpipes/muffler?
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1. I am doing this at a 1 step at a time approach. (yes I will be altering the ECU maps, custom tuned. but later) The reason is I want to know as well as others whether Porsche has detuned the boxster through the exhaust or the ECU or quite possibly both. (Porshce did not want Boxter's threatening there 996 owners).
2. Yes, 1st stage is strictly bolt up exhaust that should determine if flow is restricted anywhere.
3. Yes it is Full NHP exhaust as follows:
Headers:
Equal Length primary piping, mandrel bend
Racing merge collector for primary piping
42mm primary piping vs. 36mm stock piping
200 cells sport catalytic converters vs 800 cells factory
2 inch exit pipe vs. 1 3/4" stock exit pipe
Mid Pipe Bypass pipes:
Completely removing rear CATS
50mm versus 40mm diameter
Exhaust:
304 Stainless Steel this muffler is a straight through pipe design
there are no internal baffles