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955 Speed Triple
| Description | : | Repeat Hordpower customer Shawna got a birthday present from her husband in the form of a makeover for her 2003 S3. It arrived wearing an Arrow high-mount slip on and Power Commander. The fueling as delivered was a little off at part-throttle, but at WOT it was decent. 107hp was the baseline. Off came the cylinder head for a Stage 1 port and milling for additional compression. Everything was buttoned back up, and the PC was replaced by Tuneboy. I fiddled a bit with the fueling, tried some ignition timing changes that went nowhere, and bumped the rev limit by 300. The results were staggering! 122hp, a 15hp gain. I would say 2hp came from the rev limit change, 3 from tuning, and 10hp from the cylinder head work. A great result. |
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