5/10/2011 12:10 AM PDT by TMZ Staff  

Kat Von D‘s ex-husband is launching a not-so-secret plot to defeat her tattoo parlor — in fact, he tells TMZ, he just opened his own tat shop nearby … and he’s determined to beat her at her own game.

TMZ spoke with Oliver Peck — who worked alongside Kat for years — and he BLASTS his ex, telling us, they “make real tattoos” at his new place … unlike Kat’s “gimmicky tourist tattoos” a few blocks away at High Voltage.

Peck doesn’t stop there, insisting, “Nobody gets a good tattoo [at High Voltage]” — and urges ink enthusiasts to stop by his place instead … “We’re a real tattoo shop.”

Oliver took over ownership of True Tattoo in Hollywood this January — the same place they filmed “Miami Ink” — but the shop didn’t open ’til this week because of remodeling.

This is what happens when you look like a cartoon super villain.

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