Mitsubishi OEM Engine Splash Shield LH for Evo 7/8/9 Select::6-Speed (MN154605) one is that they are

one is that they are often designed to blow open above a certain pressure to protect the engine and the other is they are not optimized for throttle response

(1) Bolt MB911314

Typical Properties:

which provides increased filter surface area

GSC Power-Division exhaust valves for the 4G63 Evo and DSM

Mitsubishi OEM Engine Splash Shield LH for Evo 7/8/9 Select::6-Speed (MN154605) one is that they areGenuine OEM Mitsubishi factory replacement engine splash shields for the Evo 7 8 9 models. This black plastic cover goes in the left side of the engine bay to the wheel well. These are different for 5 speed and 6 speed models. See diagram image for exact placement. Purchase includes one splash shield. The 5 speed shield is pictured for reference. Vehicle Fitment: 2001 2006 Evolution VII VIII IX Purchase Includes: (1) Splash Shield Install Notes: