After any tune other than stock , for ba xr8 auto . boss 260 atm ,
the mods I have done are: phelum spacer , 25%underdrive pullies , port match intake to heads, fpv extractors titanium wrapped with highflow cats , bpt power intake pipe , big mouth intake modified to even bigger opening k&n hignflow aircleaner ,

and no tune so far , about to add 290 heads and extremely lumpy comp cams . but like to put a tune on it before that to see the difference.

if anyone has a tune I can try or they think would suit ,I wouldn't mine trying it thanks