I did the C5 Z06 conversion on my IROC. Highly suggested. I had all my machine work done for free so my total cost came out to about $400....about 1/3 or 1/4 of what the Baer kit costs I'm sure. GM sells slotted cross drilled rotors for about $48 each.
(Watch for a story on my swap in GMHTP in a few months maybe)
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--==RPM Resto & Custom==--
1989 IROC-Z Media Coverage:
Chevy High Performance - Readers Rides 4/03
GM High Tech Performance - Tech Article 3/06
Chevy Rumble - Tech & Feature Articles November 2006
Auto Restorer Magazine - Feature Article 5/11
SkinAndSteel.com