No Tuning Required With Bolt-On aFe Power Large-Bore Throttle Bodies

Packing more oxygen into your cylinders is one of the fastest ways to make extra horsepower. That is why upgrading the induction system is almost always at the top of the list for any performance enthusiast. At the 2026 SEMA Show, aFe Power brought out its full lineup of aftermarket Large-Bore Throttle Bodies designed to let your engine feast on more air without requiring big changes to the rest of the vehicle. Every throttle body in the lineup features a larger bore than the factory unit, making it an attractive bolt-on upgrade right out of the box.

Unlike larger engine modifications that require a custom computer calibration before you can safely back out of the driveway, these units work immediately with your stock setup. Stuart Miyagishima of aFe Power explains that the design goal was to increase the bore diameter just enough to give the motor that extra bump in horsepower without having to change any of the vehicle electronics. Because you never have to retune the computer, you can simply bolt one of these Large-Bore Throttle Bodies onto the intake manifold, plug the harness in, and drive away.

Out on the road, drivers feel a noticeable difference between the stock throttle body and the wider aftermarket piece. The horsepower increase also shows up clearly on the dyno rollers, where the upgrade delivers a gain of nearly 10 horsepower depending on the specific application.

aFe Power saw the massive potential in this product line right after releasing just a few initial options for various domestic platforms. Car and truck owners loved the idea of picking up nearly 10 horsepower from a simple part they could bolt on in the driveway with zero tuning headaches. Since those first releases, the company has expanded its domestic throttle body offerings to cover a broad range of General Motors applications.

You can see all of the Large-Bore Throttle Bodies that aFe Power currently offers right now by visiting the official company website.