Having looked at various post on here, I am wondering what is the best way to blank the egr valve on a td5 on an 03 plate - either just fit the blanking plate and leave it in place, or remove it completely? does the electrics and pipe work need to be disconnected from this?hopefully im aiming to give it more revs lower down the gears, primarilly for towing purposes as at present while pulling well it seems to be lacking something? Any suggestions would be much appreciated. .