http://cgi.ebay.com/ebaymotors/96-AVENGER-2-0L-ENGINE-COMPUTER-ECU-ECM-PCM-P05269811-/390281749934?pt=Motors_Car_Truck_Parts_Accessories&fits=Year%3A1996|Model%3AEclipse|Make%3AMitsubishi&hash=item5ade9ae5aeits a computer for a rs manual but the rs and gs isn't that big of a difference just a trim packages. That is why i think it would work because it's the same motor and transmission.thanks