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Message: <blockquote data-quote="mat3833" data-source="post: 7942590" data-attributes="member: 587645">the port is all about smooth airflow. and the 45s help the air flow smoothly. you gain a little output as well as reduce port noise. its well worth it IMO. im going to go as far as using PVC pipe each corner for a completley smooth "U" bend AND routing the edge of the inner port wall ends if i can, if i cant i will be 45ing and still route the edge. but i will have a folded port, not an "L" port. im also tuning kinda low, and the lower you tune the issue of port noise becomes more of a concern.i hope how i explained it makes sense.....Matt</blockquote>

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