Product Code: BXEF-AT-11S
Each fuel injector height adapter is CNC machined from billet alunimum, then anodized. 
Height adapters are designed to fit over 14mm fuel injectors and help adapt a shorter injector to your specific needs. For example, using a 1/2" adapter on a 38mm injector will turn it into, basically, a 48mm injector. 
Height adapters are available in ½” and 1” length and with 11mm and 14mm bores.  Height adapters include new, Viton O-rings and clips.