adrynalinjunkie

iTrader: (4)

OK that is a newbie question but I did do a search for what is a SD.

2xLS1

iTrader: (25)

It is Speed Density and it is better than a MAF tune because people on the internet say it is.

Slowhawk

iTrader: (12)

LOl,that was funny.

SD tuned primarily off the MAP sensor. It can be precise. Is it better than the MAF? sometimes yes,sometimes no.

Anniversary "Z"

iTrader: (26)

I'm gonna add my .02 before this one gets ugly cause it will.

If you have a dedicated tuner to getting your tune exact and honestly taking twice the amount of time to do so a Speed Density tune is the way to go. Think of it as a Subway foot long made exactly for your car.

A MAF tune is one that will work just fine, but it may be leaving some performance on the table since it is allowing the MAF to make changes to your tune as it see's fit through changing temps, air flow, etc.

My honest opinion, mildly built primarily street car = MAF / weekend warrior and beyond = SD

JayplaySS

iTrader: (15)

All new Mopar Hemi's still use SD to this day (IIRC). My 06 SRT8 300 was anyway and that thing was so snappy around town. My .02

My C6 will also get a SD tune to get rid of the restrictive 85mm MAF after 500rwhp-