RR stands for Road Racer. It has all of the features of the SS model plus Road Racing/Autocross mode in which you can record and replay your Gs and RPMs for a given practice or race session.PASS - Performance Analysis System Software. It can be used for replaying and comparing 1/4 mile runs or for replaying Road Race/Autocross sessions. It even replays engine sound based on recorded RPMs. With the RR model you can memorize settings for up to 4 cars and jump from one to another in a matter of seconds. Some guys get the extra brackets for each car so moving the G-TECH from one car to another is really a snap. RR model comes with 2 Megs of FLASH. This is enough to store over two hours of Road Racing/Autocross sessions (10 Hz recording.) That's more than full-blown data-acquisition systems costing thousands! RR model comes with the PC Download Cable that is used to quickly hook-up to your PC and download all your runs and sessions. RR model comes with the AC Adapter so you can power the unit while you are downloading the runs/sessions to your PC. RR model comes with the Permanent Mount which allows you to permanently mount the G-TECH/Pro anywhere in your car. The unit itself can still be taken out of its cradle. Availability: Usually ships the next business day. 230$294.99 Don't see what you want? .......... Need help? Or, IF THERE IS NO ORDER BUTTON AVAILABLE on the part you want to buy, please call us TOLL FREE at 1-888-6 GO FAST(1-888-646-3278) Monday - Friday 8AM - 5:00PM Pacific Time and talk to one of our experienced Sales Agents. Some parts may not be legal for sale or use in California and other states on any polution controlled motor vehicles. Check your local laws for use. Copyright © 1997-2012 GoFastParts.com all rights reserved. No part of this site may be reproduced without prior written consent.