GrimmSpeed Post-MAF Pipe Kit for 2022+ Subaru WRX (113050) 1571 6 2013 Subaru Outback Engine:

6 2013 Subaru Outback Engine: 3

An axle-back configuration

Acura RSX/TSX K20/K24 02-08 Alternative for 21U-01-1300-4 (16MX-03-1200-4)

looks factory on the outside but has a secret weapon mixed in behind the axle-back system

spin-on filter and pickup screen

GrimmSpeed Post-MAF Pipe Kit for 2022+ Subaru WRX (113050) 1571 6 2013 Subaru Outback Engine:The GrimmSpeed Post MAF Pipe Kit is an excellent upgrade for your FA24 powered WRX. This kit removes the restrictive corrugated structural folds of the stock plastic unit and replaces it with larger diameter CNC mandrel bent aluminum tubing. The 2. 5 inch tubing and large radius bends are designed to reduce restriction and maximize the performance of your WRXs factory intake box. This results in faster spool times, which can significantly enhance your