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Labor Day Sale

Labor Day Sale on Custom Tuning!

SSi Performance Labor Day Sale Get 20% Off All of our Custom tuning packages. 1, 2, or 3 Custom Tunes At checkout use coupon code – Labor   Have a safe and Happy Labor Day Everyone!

TRX Dyno

2021 Ram TRX Tuned Results 708 rwhp 696 RW trq

Typical mail order 2021 Ram TRX tune 708 rwhp, 696 trq.   DiabloSport custom tuned by SSi Performance. [caption id="attachment_17386" align="alignleft" width="700"] 2021 Ram TRX Tuned[/caption]

SSi Performance 4th of July Sale Starts now!

Our annual July 4th SSi Performance Sale Starts now!   You can get the best tuning available and get up to 15% off on programmers with custom tunes and Custom Tuning only purchases.  At checkout use coupon code – 1776   Not only will you get world class performance tuning, you will also get those much needed extra mpgs. These all come with our newly released OG3 Performance tuning.…


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