| Message | when I was ordering my last set of R4S (they carry both).  I think Glenn will attest to that (I'm not sure if I also asked him, but I think he's also run the Hawks and I know he has run the Porterfield R4S before).  You might wanna ask the ClubZ list, b/c I know a few of the others have used these exact pads. As for me, I think the R4S are better since I have been told so by Frey, and they are pretty reputable. Good luck. 
 
 Salah1993 300ZX Twin Turbo
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