You can just call stillen directly they are pretty good with customers . I have gen3 s also and they are nice however takeda has a system coming soon that don't require core support cutting. So that's an option also. Good luck.
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F.I.CBE|F.I.HFC|20/25mm Z1 Spacers|CS TypeN Wing(cf)|CS Diffuser (cf)|EvoR Fangs(cf)|EvoR Type2 Front Lip|Evor Side Blades|Stillen Gen3|JDM Fog|
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