nick9one1 2 Posted September 10, 2008 I'm replacing the copper pipe on my 1.9 and an about to order but I don't know what size I need? I was going to get the nickel-copper pipe at 5/16 (if that's right?) but i don't know what size nuts I need to replace all on the system. Vehicle Wiring Products - Brake Line Share this post Link to post Share on other sites
Anthony 1,000 Posted September 10, 2008 All the unions are M10x1 with the exception of one side of the 1.9 rear compensators which is M12 if I recall. Share this post Link to post Share on other sites
Ryan 99 Posted September 10, 2008 3/16 is the pipe you want. Share this post Link to post Share on other sites
