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Also check out our Eighth Mile Rankings, Quarter Mile Rankings and 60 to 130 MPH Rankings pages
Tapout Tunes dominate at the track, on the street and on the dyno as well.
Overall (LF4 powered ATS-V, CTS V-Sport and CT4-V Blackwing)
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- SAE correction factor is the industry standard, adjusting for weather conditions in a realistic and universally accepted manner.
- STD numbers are artificially inflated by 2 to 5%, and are shown in the lower portion of the chart below.
- Uncorrected dyno numbers are not included. That would be like using a tape measure with no markings.
- Hub dyno numbers are excluded, since they typically report substantially higher numbers than dynos that measure at the tires
Lots of people claim to ‘have a 650 whp ATS-V’, but the facts tell a different story. The truth is that less than 0.50% of all ATS-Vs have actual dyno charts with 650 whp using the industry standard SAE correction factor.
| Intake Mods | Fuel Mods | ||
| IN | Intake and/or air filters upgrade | OB | Octane boost or race fuel mix |
| TC | Turbochargers upgrade | EB | Ethanol blend fuel > E15 |
| TB | Throttle body modification or upgrade | MI | Methanol injection |
| IC | Intercooler upgrade including interchiller or ice box | LP | Low pressure fuel system upgrade |
| HP | High pressure fuel pump (HPFP) upgrade | ||
| FC | Fuel cam upgrade | ||
| NO | Nitrous oxide injection | ||
| FI | Fuel injectors upgrade | ||
| Ignition Mods | Cylinder Head Mods | ||
| SP | Spark plugs upgrade | VS | Valve springs upgrade |
| CH | Cylinder heads upgrade | ||
| CS | Camshaft upgrades | ||
| Exhaust Mods | |||
| EX | Exhaust system modification | ||