This cold side charge pipe is an upgrade over the factory unit and is manufactured from oversized mandrel-bent 6061 aluminum and every bend and TIG weld is completed by hand at the Injen Technology headquarters in Pomona, California. Having an internal diameter of 3.25in, this charge pipe is able to reduce restriction and quickly transfer cool air from the intercooler directly into the engine. The cold side pipe also aides in balancing airflow from the intercooler to improve performance and also helps lower engine damaging exhaust gas temperatures (EGTs).