Power Packages
Stage 1 Power Package - 05-09 Subaru Legacy GT
The beauty of the GrimmSpeed Staged Power Packages is that all of the included components were de...
The 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 your 2005-2009 Legacy GT. The upgraded Grimm...
Stage 3 Power Package - 08-14 Subaru STI
The beauty of the GrimmSpeed Staged Power Packages is that all of the included components were de...
The 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 3 Power Package represents the pinnacle of bolt-on performance for your 2008-2014 Subaru STI. This package...
Stage 2 Power Package - 08-14 Subaru STI
The beauty of the GrimmSpeed Staged Power Packages is that all of the included components were de...
The 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 2 Power Package is a well-rounded kit, offering increased power and torque output thanks to reduced restri...
Stage 1 Power Package - 08-14 Subaru STI
The beauty of the GrimmSpeed Staged Power Packages is that all of the included components were de...
The 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 your 2008-2014 Subaru STI. The upgraded Grim...
Stage 3 Power Package - 08-14 Subaru WRX
The beauty of the GrimmSpeed Staged Power Packages is that all of the included components were de...
The 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 3 Power Package represents the pinnacle of bolt-on performance for your 2008-2014 Subaru WRX. This package...
Stage 2 Power Package - 08-14 Subaru WRX
The beauty of the GrimmSpeed Staged Power Packages is that all of the included components were de...
The 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 2 Power Package is a well-rounded kit, offering increased power and torque output thanks to reduced restri...
Stage 1 Power Package - 08-14 Subaru WRX
The beauty of the GrimmSpeed Staged Power Packages is that all of the included components were de...
The 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 your 2008-2014 Subaru WRX. The upgraded Grim...