Outdated Burnside Racing Parts 1.0416

• Changed side-exhaust part names, 1-pipe to 2-pipe, 2-pipe to 4-pipe, and so on
  • If your config uses these parts, they might need to to be re-applied.
• Added inputmap 'keyboard_burnside_racing_parts.json'
• Adjusted gearbox whine
• Matched some engine parameters found in vanilla