# What is your filter.

**URL:** <https://forums.speedlife.net/t/what-is-your-filter/249961>\
**Category:** Shift518 Automotive\
**Created:** [January 26, 2010, 6:00am UTC](https://forums.speedlife.net/t/what-is-your-filter/249961 "2010-01-26T06:00:03Z")\
**Posts on this page:** 1\
**Showing post:** 64

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**Author:** ![Johawk](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/johawk/32/6284_2.png) [@Johawk](https://forums.speedlife.net/u/Johawk)\
**Post date:** [January 27, 2010, 2:53am UTC](https://forums.speedlife.net/t/what-is-your-filter/249961/64 "2010-01-27T02:53:15Z")

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> [@My HID Retro fit](https://forums.speedlife.net/t/my-hid-retro-fit/28700/30):
>
> Not when most of your engine is in the 20th century and is aluminum.

The structure is Aluminum. The wear surfaces are all still ferrous. :tongue

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