[topo]

ive got heat range 7 irediem plugs in my r33 gts is that right ?

just stage one mods like exaurst air filter dump valve de cat etc etc

had one crack the other week and will get a new set but wante dto klnow if the 7s are ok for my mods

 

[wisecobandit]

7's are fine mate.

 

[Daveb-gtst]

got them in mine

 

[HKP]

me too
and only mods i have are

apexi filter
japspeed 3"downpipe/elbow
decat
apexi zorst
GTR FMIC

 

[topo]

ok cool i was thinking of droping down to 6s see if the car ran any smoother etc what do you think ?? could 7s be too much for my mods ?