986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - How much power can you squeeze out of a 986 Boxster S?

PaulE · 02-01-2017, 09:53 AM

Thanks for the update. Just to summarize and make sure I have it right, are these the final modifications after round 3? -

Sport Exhaust with Euro exhaust manifolds without catalytic converters
987 airbox with 986 MAF
996 Throttle body and intake plenum
Underdrive pulley
Stock ECU Map

Do you have and if so can you share the RWHP graphs from the dyno sessions? If not, is there a conversion factor that was used to arrive at the engine HP figures quoted? I'm not doubting you or poking holes at what you've accomplished, which I think is great. I'm just trying to understand.

For a US spec 2003 Boxster S, what would be the equivalent exhaust upgrade? For example, headers with catalysts and secondary cat delete pipes?

02-01-2017, 09:53 AM	#48
PaulE Registered User Join Date: Jan 2014 Location: New Jersey Posts: 1,631	Thanks for the update. Just to summarize and make sure I have it right, are these the final modifications after round 3? - Sport Exhaust with Euro exhaust manifolds without catalytic converters 987 airbox with 986 MAF 996 Throttle body and intake plenum Underdrive pulley Stock ECU Map Do you have and if so can you share the RWHP graphs from the dyno sessions? If not, is there a conversion factor that was used to arrive at the engine HP figures quoted? I'm not doubting you or poking holes at what you've accomplished, which I think is great. I'm just trying to understand. For a US spec 2003 Boxster S, what would be the equivalent exhaust upgrade? For example, headers with catalysts and secondary cat delete pipes?