Turbosource FD Sideport Lower Intake & Rail

Description Dyno proven Best all around performance (not just top end RPM). Runners are equal length, and equal bend for proper balance between rotors. Tapered runner design, only slightly oversized from OEM. Does not hurt throttle response or bottom end/midrange performance. 4 injector rail included, -8AN. LIM flange o-ringed( between UIM/LIM) Extra material added so one can port match to a 13BRE or larger Mounting tabs for heat-shield Works with OEM FD UIM, or Turblown UIM, will not FIT 13BRE UIM.