Pay in 4 interest-free payments of $125.00 Learn more
Ships within 48 hours · Estimated delivery Aug 31 - Sep 5
Compatible with:
- Cast aluminium high efficiency end tanks
Price includes (2) 12
- X-pipe (recommended)
from the comfort of your garage
Stertman Motorsport ECU Software Upgrade For Audi RS4/RS5 2.9T (B9) Tuning Stage::Stage 1 Compatible with:We are pleased to offer Stertman Motorsport performance software for your B9 RS4 RS5. With over 20 years of experience in tuning VAG & BMW platforms, along with advanced development and diagnostics equipment, Stertman Motorsport is one of the premier software tuners in the world. Each tune is developed and rigorously tested in house, both in a controlled dyno environment as well as on rolling roads. Stock Power: 450 HP 442 TQ STM Stage 1: 500 HP 585
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![Solitude (Retro) [Modern Horizons 2] Modern](https://cdn.shopify.com/s/files/1/0016/4282/3715/files/9a73bf5f-9d7b-501f-8262-1e21d6b81cfc.png?v=1742328512)
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