4 port 13bs make the power... 3mm are not needed for NA but ceramic apex seals are used on NAs to save the housings incase of failure.
for street use go largest street port you can, but if its your weekend car then go bridgeport.
4 port 13bs make the power... 3mm are not needed for NA but ceramic apex seals are used on NAs to save the housings incase of failure.
for street use go largest street port you can, but if its your weekend car then go bridgeport.
Finally some sensible recommendations.
![]()
2013 Corsa Blue Optima SX 2.0T