Hi dear Ken!
Only suitable if you have a Roadster S1 (the first "ST220" Version with 226hp, ca. 2004-2008)!
Together with Librand´s exhaust system (and the air intake offered by Aero Racing for example) makes a SIGNIFICANT upgrade!!!
Try & enjoy.... (as always: just a happy customer, no... etc.)
V6 3,7 - "the beauty AND
the beast" - in ONE