i had the exact same problem with the ones I had from turner (which are made by bimmian). I returned them and got the OEM painted ones from IND.
Current: Porsche 997 Turbo 6MT, Atlas Gray | Cobb Stage 2 | HRE FF01 | Europipe Stg. 2 Exhaust | GMG LMS Rollbar | GT2 Exhaust Tips | Pagid RS-29 | Rennline Pedals | SSK
Previous: 997.2 Track Car, heavily modded | E92 M3 DCT, still miss her daily | E92 335 6MT heavily modded and problem-prone