daedaee

hi guys on my r33 gtst 1993 it has a braided cable that runs down threw the chassis and comes out next to the exhaust, and theres something that attaches to that which im not sure what it is or where to get another one because i scraped going over a speed hump and its pulled it out and stuffed it and i think its shorting out, my thermostat light is staying on and check engine also comes on itermitently. Any help on where i can get another one of these, and or what it is would be good cheers