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The X-Series Wideband Gauge and X-Series Inline Controller support the popular Bosch 4
increased compression
" has been released
The red line is the SPOON air cleaner
Impreza GC8 / GDA / GDB / GGA
RCM 14/12mm Cylinder Head Stud Kit Decals & Stickers The X-Series Wideband Gauge andDesigned for the ultimate in engine performance and reliability and derived from the rigors of the World Rally Championship, RCMs 14mm 12mm Head Stud Kit has consistently proven itself as a must have component of any EJ20 22 25 engine build where 450bhp+ power output is expected. It is essential engines modified to this level have the most reliable system for clamping the cylinder heads onto the block assembly to avoid the heads lifting under load at
