The DIY Technoflow is for the 2.5L only.
Porsche completely changed the intake in 2000 when they went with e-gas.
They choked down the air intake tube, the throttle body and the intake tee.
They are way smaller than those on the 2.5.
What you need to do to the '03 to get decent power from it is to install the TechnoPower2 Kit.
Send me an email or call me and we can chat.
Happy Boxstering
Pedro
Pedro Bonilla1998 Boxster 986 - 311,000+ miles:
[www.PedrosGarage.com]
PCA National Club Racing Scrutineer - PCA National HPDE Instructor - PCA Technical Committee (Boxster/Cayman)
Racecar spelled backwards is Racecar
"Racing is life. Anything before or after is just waiting" ... Steve McQueen as Michael Delaney in "LeMans"
"If you wait, all that happens is that you get older"... Mario Andretti
"Being second is to be the first of the ones who lose" ... Ayrton Senna