Dear HaltecH User/Tuner/etc..(who have experience regarding this toy)
I'm planning to upgrade the ecu from standard to Haltech E6X & currently i'm using 4AGE 20V engine.
what i'm understand if want to used this...
Engine
Tuning Computer T.E.C.II
Super RAM II Street...
Hi, may i ask what is the best piping size for 4agze (ae92 '91)?
is it 2inch since it's almost like na when the sc is off or should it be bigger, more like turbo style (3inch)?
i'm aiming for a balance between...