ive used them for years. very good results. never a drop leaked, or failure. its really just a good ol ball valve with a lock. i think i paid 20 bucks for my last one, and will purchase another for the Z next oil change.
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2009 PW Sport/Touring/Nav M6
Stillen Gen 3 Intake/CBE/Berk HFC/BC BR Coil over/Phillips 6500k/Hotchkis Sways/Stillen oil cooler/B&M SS
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