Thread: MFI Vacuum/Boost hose setup
View Single Post
Old Dec 7, 2015 | 08:05 PM
  #5  
Chas's Avatar
Chas
Regular Contributor
 
Joined: Sep 2005
Posts: 295
Likes: 6
From: Warwick
Default
Series 1 cars did not have a non return valve IIRC. If going beyond stock boost it is probably a good idea to fit one .
Reply
0