GrimmSpeed Exhaust Manifold User Manual
Grimmspeed exhaust manifold
GrimmSpeed Exhaust Manifold
2002+ Subaru WRX/STi/LGT/FXT
GrimmSpeed Exhaust Manifold Installation Instructions
Park your vehicle on a level surface. Fully engage your parking brake and
put wheel stops on the front and rear wheels to keep the vehicle from
All GrimmSpeed exhaust components are intended for Off-Road use only.
Remove plastic splash guard (3) 10mm bolts and 4 plastic clips.
Remove small plastic access panel in fender wheel. This will give
you access to o2 sensor.
Remove o2 sensor from passenger side exhaust collector with o2
Remove passenger side exhaust collector heat shield (4) 12mm