| right now actually. I hope to get my car to the dyno next week and do a back to back with stock vs my 54mm TBs. My car is pretty stock though so a more modified TT would probably benefit more from this mod. I should have info on my upcoming 62mm billet TBs next week. These may end up at 63mm but it will only leave a 1mm wall at the base near the bolts. 65mm is the max OD that will clear the stock bolts/lock washers. I have a pair of 60mm Stanza TBs that I opened up to 63mm. I will flow those (stock 60 and modified 63mm) along with a used set of Z1s 58mm TBs next week (if they arrive in time). I am curious to see the results. Thanks everyone for the interest. I just thought it would be a cool project to do with the CNC, I had no idea so many people would jump on board. It's great to be able to support this wonderful community. Thank you. Rob
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