I've been looking at the adjustable fuel and boost controller from A1. They claim you can adjust fuel levels and boost pressure on the fly and its simple plug and play. Has anybody tried this? If so how'd it work out?

 

DO NOT buy anything from A1 customs!
Google "6.5 steaksauce" or A1 Customs and read the horror stories.

Since 6.5's began he has been the original snake oil salesman-cheap shoddy products with no after sales service and unfounded claims.

The part you are looking at is simply a variable resistor put inline with the colant sensor or boost sensor(not sure)-it tricks the ECM slightly and doesn't deliver as promissed.

ONLY deal with reputable vendors like Kennedy Diesel,Heath Diesel or KOJO or site sponsors here where you get service aftyer the sale and real quality products.

What you need is an aftermarket ECM tune for increased performance and above are the best in the biz.

 

Got ya, knew it sounded too good to be true, thanks