So I emailed KYB about the AGXs, here is the response: ---------- Forwarded Message ---------- Subject: AGXs (for a 91 Nissan Sentra Date: Wed, 11 Jun 2003 13:22:05 -0500 From: Troy Horn <[cutout by ak]> To: "'aaron@limitedslip.net'" <aaron@limitedslip.net> They adjust both rebound and compression at the same time. Troy Horn KYB America LLC [contact info cut out by ak]