Hey guys i have a local shop in El Paso that will dyno tune my car for $1095. The car has lth 160 degree thermostat and an air raid cai so far. I had an engine code at first for p0030 for my b1s1 heater circuit but I think it was due to my negative battery terminal breaking. My fuel trim and afr is all over the place and I was just thinking have them fix it as well. Recently I’ve been seeing this thing about Lund being the best out there. Should I go with lund? From my understanding if I do...

Tuning Question - 2019 GT w/MT82