Pontiac GTO Mods, Performance Upgrades & Gallery

Another legendary muscle car by Pontiac, the GTO entered production in 1963 as an optional package for the LeMans. The name of the model was inspired by a successful Ferrari’s race car, the 250 GTO. GTO is an abbreviation for Gran Turismo Omologato (grand tourer homologated) in Italian and means an official certification for racing in the grand tourer class, though the Pontiac GTO never had such a certification. Back in 1963, the model offered a huge 6.4 L V8 capable of producing 325 hp connected to a 3-speed manual, chromed valve covers, hood scoops, dual exhaust pipes, wider wheels, stiffer springs, and a range of other upgrades. In 1966, the Pontiac GTO became a separate model that was marketed up to 1971. After that and up to 1974, it was made an optional package again, for the LeMans and Ventura. In the 2000s, the GTO was revived for a short time, but it was a rebadged version of the Holden Monaro marketed in Australia.

pontiac gto black
2004 Pontiac GTO 5.7L LS1 6 speed by IG: @projectgto2004


pontiac gto orange rear view
2006 Pontiac GTO M6 by IG @jerem2829

What are performance mods / Common Performance mods

  • Air intakes
    A quite straightforward modification, it can also improve efficiency of the vehicle along with a throttle response. Compared to other engine upgrades, installing aftermarket air intakes is a more budget-friendly way of upgrade and it will still make a notable difference.
  • Turbocharger/superchargers
    In case you want some solid power enhancement, take a look at intercoolers – turbochargers and superchargers. They will increase performance of your four-wheeled friend significantly, but both installing such a unit or upgrading your existing one will lead to some serious expenses.
  • Performance Exhausts
    Upgrading the exhaust, you’ll kill two birds with one stone. First of all, the sound of your GTO will be significantly better coming to a whole new level. Plus, thanks to different bends, gas will be better removed from the system resulting in lower backpressure and hence better performance.
  • Performance tuners/chips
    Current-time vehicles depend on computer systems more than even before. It not only makes driving easier and more comfortable, but also provides an opportunity to upgrade your vehicle in one more way.
Classic 1969 Pontiac GTO black front view
Classic 1969 Pontiac GTO by IG @2thfarmer