Just paid off my ‘13 AWD LUX GS350 and ready to do some upgrades!

my wife got me the carbon intake & Tundra throttle body from RR racing— https://www.rr-racing.com/RR-Racing-Carbon-Intake-for-Lexus-XS350-p/isxitk0002.htm

the compatibility table does not include the GS, but the service rep assured it is comparable.

my question is, how do i go about installing the tune myself, and can i install without the tune for now? I’m a beginner, but eager to begin building.

along with these parts, what are some other recommended upgrades? Spark plugs, other bolt ons? My next big upgrade would be an exhaust system, recommendations welcomed.

thanks in advance

 

Check out my build tread, you'll find a lot of good performance upgrades there.
It's tiled Holgram's 'White Pigeon'