JLT RAI need tune ?

[everick]

Hey guys one of my friend just instal a brand new JLT RAI NEXT GEN on his car, do he need a Tune ? car is completly stock

 

[KLLR SNK]

If his tune was good before no tune required.

 

[everick]

never had it tune before, mod are just borla stinger and now JLT RAI

 

[cj428mach]

Need to have a wideband on it and datalog it. Seeing that the factory commands a lean 12 AFR at wot would make me nervous about adding more air flow with out checking it.