What is the decal on the back of the 1988 IROC Z?
The only picture I found of one shows a emblem on the right rear bumper cover. It says "IROC Z" and has a small bowtie. You might find one on eBay using "IROC emblem" http://static.cargurus.com/images/site/2010/08/02/12/43/1988_chevrolet_ camaro_iroc_z_coupe-pic-6193869008452187574.jpeg
Here's a better shot - http://images.dealerrevs.com/gallery/photo.php? id=28207964
Here ya go - $50 --- http://www.ebay.com/itm/NOS-GM-85-90-Camaro- IROC-Red-Rear-Bumper-Emblem-/360438656758? pt=Motors_Car_Truck_Parts_Accessories&hash=item53ebd16ef6&vxp= mtr
Here's another auction with a part number in the picture. --- http://www.ebay.com/itm/85-90-CAMARO-IROC-Z-DARK-RED-BUMPER- COVER-EMBLEM-NEW-GM-86-87-88-89-/390481426123? pt=Motors_Car_Truck_Parts_Accessories&hash=item5aea81b6cb&vxp= mtr
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