Tomei - VALC Poncam - NISSAN RB25DE[T]The PONCAM camshafts are for direct drop in applications and will work on both the OEM factory ECU and aftermarket ECU's. Tomei's 258 degree for low profile application that requires an overall improvement in power band without sacrificing low end. Every camshaft is carefully manufactured with our strict standards to ensure only the highest standards of quality are what you get. Every camshaft is carefully built through these production processes.