115 definitely has more in it. On a B5 that should be 12.0-12.2 range.
Ever think about getting retuned? I reckon VASTs last couple of years of tuning weren’t their finest, based on what we’ve seen. I think you probably met someone who could help you out last weekend. Just a thought.
Not that you need to push the car nor am I recommending it. I just know that lots of tunes leave lots of time on the table because they pay too much attention to in gear pulling power, but don’t know how to tune around a gear change for example.