GIAC is extremely reliable and very smooth. I ran stage 1 for almost two years and have had stage 2 for the last year with zero problems related to the flash.
Coming from a VW, you should probably know how well-respected GIAC is with VW/Audi/Porsche and well-engineered their product is
good luck, you have many options, and lots of different opinions on this forum
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GIAC S2 | Brembo GT BBK 355/345 | BBS CH-R | Michelin Pilot Super Sports | AR Design: DP, S1 Oil Cooler, OCC | AMS FMIC | Bastuck Quad Exhaust | Borla MP | KW V1 | Stett: CAI, CP | Forge DV | P3 Boost Gauge | Arkym: Front Lip, Rear Quad Diffuser | Vorsteiner CSL Trunk | LUX H8 | ModMyNav | MFD M3 Sideskirts | BMW M-Tech Front/Rear Bumpers, Edition Grills
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