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Red or Blue Oriface Tube

1K views 8 replies 7 participants last post by  crowz 
#1 ·
Which is the better oriface tube to use the red or blue ? :shrug:
 
#5 ·
I use a blue one because all of my driving is at 70-75 mph. If I did a lot of stop and go in tow driving I'd use a red one.
 
#8 ·
I've already pulled mine and it had the red one . It had both listed and I did'nt know if they were much of a differance in the two . They were like 2 bucks so I just bought both and went with the same one that was in it . I would still like to know the differance in the two if anyone knows .
 
#9 ·
The blue one is .067" and the red ones .062".

Red gets colder at idle and where a diesel is likely to stay all the time anyways.
 
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