2011 Subaru Impreza STI GVB Part 2

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The Verdict

Over the past few Test & Tune applications we’ve done here at DSPORT, it has become increasingly apparent that many bolt-on solutions require an engine management solution to be able to produce and retain significant power gains. As we approached STI T&T part 2 with this in mind, we were able to maximize the power available from the existing setup while maintaining the power gains over time. Stay tuned.

The Bottom Line

HP Level HP Increase % Increase Total
BASELINE 268.9
Test 1 AEM Induction Intake 274.7 5.8 2.1! 5.8
Test 2 SPT Cat-Back Exhaust 283.7 9.0 3.3% 14.8
Test 3 Crawford Downpipe 300.3 16.6 5.9% 31.4
* * * * *
FINAL POWER 300.3 11.3% 31.4