RSA intake: worth it?
#5
Nordschleife Master
^ perhaps if you're going from an aluminum plenum to the later model plastic plenum. Gauranteed the RSA (and RS) used the exact same plastic plenum as the rest of the late model Carreras.
3.8RS (wide body car) is a totally different induction system and that would have gains but likely also suffer from around town driving performance deterioration in favor of high RPM performance.
Also, if you're planning to change from an aluminum to a plastic plenum, be sure you're buying the whole friggin' complete assembly, from the AFM elbow all the way down to the plastic plenum and all the little bits that go along with it. The throttle body assembly changed a few times over the model years so it's not as simple as swapping out the plenum halves without supporting parts.
3.8RS (wide body car) is a totally different induction system and that would have gains but likely also suffer from around town driving performance deterioration in favor of high RPM performance.
Also, if you're planning to change from an aluminum to a plastic plenum, be sure you're buying the whole friggin' complete assembly, from the AFM elbow all the way down to the plastic plenum and all the little bits that go along with it. The throttle body assembly changed a few times over the model years so it's not as simple as swapping out the plenum halves without supporting parts.