My new porttube

[RumbleNTheTrunk 10+ year member]

Here it is folks....Precision Port 4 inch in diamter without flares 8 inches with flare and 17 inches long...

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[terry6405 10+ year member]

i have some of those, i got them at partsexpress.com, pretty good deal

what r u using it for? what sub? what size and tuned box?