TVS 1900 09 Avalanche by AMS

2009 LTZ with 5.3 / 6L80E

The truck is a very nice daily driver, but was lacking a few things so the goal was to increase HP/TQ as well as appearance/handling while not compromising drivability or the ride. We chose the Magnuson TVS route combined with some suspension upgrades and the customer is more then pleased with the results
TVS 1900 / 6.6 psi

  • K&N drop in filter
  • LS2 injectors
  • stock fuel pump
  • NGK TR6 plugs
  • MSD wires
  • SLP / Eibach Sport suspension which is about a 2″ drop
  • Hellwig front and rear sway bars
  • SLP PowerFlo catback
  • 93 octane

Base Line

250 rwhp / 264 rwtq on our MD

Post Dyno w/ AMS Tune

371 rwhp / 354 rwtq on our MD


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