JDC Titanium Exhaust Manifold Stud Kit | Evo 1–9 / 2G DSMJDC Titanium Exhaust Manifold Stud Kit Evo 19 2G DSM Upgrade your turbo setup with the JDC Titanium Exhaust Manifold Stud Kit, engineered for Mitsubishi Evolution 19 and 2G DSM applications. Factory exhaust manifold bolts and studs are prone to stretching, rusting, stripping, or breakingespecially when paired with aftermarket turbo systems and increased heat cycles. This can lead to exhaust leaks, poor sealing, and costly repairs. The JDC kit replaces