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mw2309
11-04-2014, 04:14 PM
How much boost will I get with 3.4 upper stock cobra lower thx

justbob
11-04-2014, 05:01 PM
Weather depending, 8-10.


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8UWITH6
11-04-2014, 07:09 PM
I am a solid 11psi with a 2 lb. lower and a 3.4 pulley.