stoopid
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I did some searching and found a vendor on Amazon that sells lettering: https://www.amazon.com/gp/product/B07KJN8BPY/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
The 3.3 TT is using the "sport mini" font. Be mindful to use some masking tape and a level to align a guide for when you apply the letters. I measured 7 2/3" down from the underside of the trunk lid to locate it in-between the badges on the opposite side of the license plate. The only issue with the lettering is the period (.) sticks out slightly with the doublestick tape that comes attached. I removed their doublestick and used some thinner doublestick I had instead so it sits more evenly flush between the 3's. I liked this enough I bought another set for when these inevitably fall off, I'm not scrambling to find replacements. They seem to be sticking pretty well though.
The 3.3 TT is using the "sport mini" font. Be mindful to use some masking tape and a level to align a guide for when you apply the letters. I measured 7 2/3" down from the underside of the trunk lid to locate it in-between the badges on the opposite side of the license plate. The only issue with the lettering is the period (.) sticks out slightly with the doublestick tape that comes attached. I removed their doublestick and used some thinner doublestick I had instead so it sits more evenly flush between the 3's. I liked this enough I bought another set for when these inevitably fall off, I'm not scrambling to find replacements. They seem to be sticking pretty well though.