You want to get aluminum and they should be changed every oil change. Dirt cheap at Pelican @ .25¢ each. I buy a couple years worth as my car is a daily driver and I change the oil every 5k miles.
Pelican Parts - European Automotive Parts and Accessories - Porsche • BMW • Mercedes • Volkswagen • Audi • Saab • Volvo • MINI
I'm still not using the spin on filter and use K&N oil filter.
 Engine Oil Filter K N PS 7011 | eBay
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2003 Boxster S
| 987 Air Box | K&N Air Filter | 76mm Intake Pipe| 996 76mm TB | 997 Distribution T | Secondary Cat Delete Pipes | Borla Muffler | NHP 200 Cell Exhaust Headers |
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