If it's the flavor you like, and just want to add heat, you can augment the heat with a high scoville neutral chili. I've done this before by adding habanero or

If it's the flavor you like, and just want to add heat, you can augment the heat with a high scoville neutral chili. I've done this before by adding habanero or high scoville cayenne after the ferment is several days in.