i made a thread about this before and the only *flow formed* 17x8 rim in a 4x108 bolt pattern i could find that would clear a whoosh or EBC BBK is the 2forge ZF1 out of England. they're a subsidiary of Borla and Darkside Development team uses them on their Mk5 track/race car with AP Racing brake kit.
2Forge Wheel Test Fit & Stealing Mk6 Parts - Part 5 - MK5 GOLF EX VW CUP CAR - DARKSIDE DEVELOPMENTS - YouTube
edit: enjuku racing was the distributor i checked with them last year and the custom offset (they recommended 30) and custom hub are included in the price but add on shipping time (i think they said expect 4-6 weeks for them to ship from England). at the time they quoted me around $1000 for a set of 4 delivered to my door which i thought was good value. however i checked last week and enjuku doesn't carry 2forge anymore and hadn't checked the other distributors on their prices.
2Forge Wheel Test Fit & Stealing Mk6 Parts - Part 5 - MK5 GOLF EX VW CUP CAR - DARKSIDE DEVELOPMENTS - YouTube
edit: enjuku racing was the distributor i checked with them last year and the custom offset (they recommended 30) and custom hub are included in the price but add on shipping time (i think they said expect 4-6 weeks for them to ship from England). at the time they quoted me around $1000 for a set of 4 delivered to my door which i thought was good value. however i checked last week and enjuku doesn't carry 2forge anymore and hadn't checked the other distributors on their prices.