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| EBC Brakes |
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| 2013 Scion FR-S Intake: BLITZ Dyno Test |
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| BEAT-SONIC Antenna |
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BlackWorks dual valve springs are a chrome silicone alloy. These dual valve springs are designed and engineered for both high performance race/street conditions. BlackWorks dual valve springs provide maximum lift while preventing valve float and helps counter the effects of spring surge. These are a great match for naturally aspirated and forced induction engines. For maximum results, use with BlackWorks Ti retainers and high/low compression valves.
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