Aftermarket probably only option. Order sheet for GT 350 shows the following stripe combos and codes: 1) Black w white accent stripes (851), 2) White w black accent stripes (852) , and 3) Blue w black accent stripes (853). For the GT350R 1) Black w red accent stripe (856), 2) White w red accent stripe (854), and 3) Blue w red accent stripes (855). Good Luck
The matte black stripes are only available on the Shadow Black R model. They come with the red pinstripe accent as do all the R model with the optional stripes. The Race Red R model is NOT available with any OTT stripe option. No matte black stripes available on non R cars. Non R's come with either white or black accent pin stripes (on the Over the Top stripe optioned cars) depending on the color combo ordered.