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      12-28-2014, 08:51 AM   #5
Delnari
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Drives: 2014 MG F22 Auto
Join Date: Mar 2010
Location: Alexandria, VA

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The aFe runs just as good as the BMS Stage 1 when using 93 Octane gas. I have read that if you have to used 91 Octane then the BMS is a safer choice. The power is more noticeable with the aFe over the BMS system that you can feel in the torque.

Run the full JB4 if you are into tuning and changes (downpipe, uppipe, higher flow mufflers) as this would give me the most added power. Daily driver usage could suffer if you are running the upper limits of the system. The aFe is so easy to install and remove (two connections) and the box tucks out of the way without all the extra wires (not used) the BMS system has. Adding a new intake or performance muffler adds to the systems power.

If you want simple and moderate power gain the aFe/BMS systems are the best for the money. If you want to keep adding and tuning the engine for the most possible power then JB4 is the way to go. The Stage 1 systems are good for the guy/gal who wants a little more power and torque without hurting the cars normal driveability.
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