Converter/ driveshaft question!
Have a 2013 auto 5.0. This is my 4th mustang. My last was an 06 GT. I was wondering if anyone has any experience with gains from a converter and/or aluminum drive shaft? The only mod I have done is the Shelby GT 500 axle backs. I did all the standard bolt ons, tune etc and converter on my 06. Basically, this is my question. I am considering not touching the motor and adding a converter and aluminum shaft, or tune and CAI. Costs will be similar, from what I know and have read, gains in ET should be similar (roughly .5). If I can get away with out tuning and keeping my warranty in place and get gains with the converter and drive shaft would prefer. Would also want to avoid a gear if possible. The 4:10 I put in my 06 KILLED the MPG!