Description New updated structure has much better clearance for use in an AW11 MR2, now works by using cylinder heads dowels for alignment and much more correct port matching!! The large res injectors have another clip to lower res injectors so you might ought to purchase some new clips.Cheers... jondee86yea https://4ageengineforsale60258.blogoscience.com/32716792/about-4age-20v