2009 LTZ with 5.3 / 6L80E
![](https://www.amsperformance.com/amsperformanceimages/16/AMS_Performance_Supercharged_Avalanche_Install_08.jpg)
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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
save