My good buddy Jim Larocca gets all the credit for this little boost to our fuel needs. Aeromotive doesnt list pumps for our cars and with some slight modification to the plug area they drop in perfectly from 05+ mustang listings. Jimmy went 148mph june 2nd with his 07 Shelby and duty cycle was 88% ....I just dropped mine in tonight and no tune adjustment is required vs our previous GT pump configuration. For around $300 these are a killer upgrade...NOT E85 COMPATIBLE !!!!