Originally Posted by jake-cos
Originally Posted by Doug
The AGPR12PP8 are std 4x4 yb plugs not had much in the way of testing on over standard yb's not a dis Tab !
Regards Doug .
I asked basically the same question a week or so ago, and Stu(mr msd)
said the agpr12pps'
that i had were pretty much the best plugs available for stg1 applications.........
good enough reason to fit them for me!!!
Don't know about higher up the power levels though...
Hence why I said I have not had much in the way of testing above std yes I agree with Stu they are fine IMHO for low horse power and low boost out puts the same as AGPR902pp are also a good plug but for high power high boost I would reconmend the 071's or irridiums thats my prefference on experience on my own cars .
Regards Doug .