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Finally after many years of debate and saving $$, I picked up my car today with boost. Wow, is all i can say. The car made 512 rwhp NA before, now makes 692 rwhp with a 4.0 pulley thru an A6 on e85. My only question is how much weight does an A&A kit add to the front of the car, because now the plastic valance scrapes on the slightest bumps going down the road. Sitting in the garage it's probably only has an 1" of clearance to the ground. I lowered the car slightly a few years ago on the stock bolts, obviously I'll have to try and raise it back a little.
Blue line is e85, green is 91. The dip is timing he had to pull out of it, but doesn't concern me since the car spends all of it's time on e85 except for winter storage.
You are probably adding a couple hundred pounds to the front of the car. Just need re-adjust the lowering bolts to get back to correct ride height. I had to do this after I added my E-force and DeWitts radiator.