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Astro Performance offers an upgraded solid-steel shifter selector finger and upgraded First/Second and Third/Fourth shift lugs for any World Class T5. "The upgraded shifter selector eliminates the chance of the pressed in pin in the factory selector from twisting," Sarvis says. "The upgraded shift lugs, also referred to as selector plates, are made out of 4130 alloy steel, making them twice as strong as the factory shift lugs, which stand a good chance of cracking when power-shifted." The upgraded shifter selector and shift lugs ($59) are included only in transmission builds, not with the A-5 gear kit.