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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27
* When running the oem gasket only
We present you the answer to this age old problem
Off-the-Shelf Tune Available - Shiv with OpenFlashTablet has developed a map to maximize the potential of the GrimmSpeed intake (an additional ~7whp)
actual products may vary
GrimmSpeed Stage 1 Power Package - Subaru WRX 2008-2014 Subaru-Forester-2008 * When running the oemThe beauty of the GrimmSpeed Staged Power Packages is that all of the included components were designed and tested to work well together, as a complete system. Instead of piecing together parts from many different manufacturers and hoping that they're design theories are compatible, consider starting with one of our excellent Staged Power Packages based on your goals! The GrimmSpeed Stage 1 Power Package is an excellent place to start when modifying
