74mm Porsche 997 Turbo Throttle body

The genuine Bosch 74mm throttle body is a proven performance upgrade for various Porsche models. Originally equipped on the iconic Porsche 997 Turbo, this precision-engineered component delivers significant improvements in horsepower and torque. It seamlessly integrates with 996 Turbo and 997.1 Turbo, creating a highly efficient air intake system for your Porsche.

Unmatched Quality and Reliability

Don’t compromise on performance. Unlike unreliable imitations, the Bosch 74mm throttle body is built to withstand the demanding conditions of high-performance driving. As the trusted OEM supplier for Porsche, including their most extreme track-focused models, Bosch delivers unparalleled quality and durability.

Are bigger throttle bodies worth it?

• That’ll depend on the rest of your build, including the manifold, air filter, air intake system, engine, ports and many other factors!
• A 74mm throttle body upgrade on a 996 turbo is quite nice.  It’ll pick up in power and throttle response without any compromise.

How much HP can a throttle body add?

• With a nice Ypipe upgrade, plenum and air intake, the 74mm throttle body upgrade can boost your mostly 996 turbo 35 to 50hp
• If you’ve fully built your engine to 3.8, 3.9, 4.0, 4.1, 4.2 or even 4.3L you’ll be wanting to head over to the gt3 throttle body or full GT3 intake manifold section! 
• However, on a stock 996 turbo, increasing the throttle body with no other changes will not fit well nor net much of a power increase.
• So be sure to complete the air intake system for the best result!

What size throttle body is a 997 Turbo?

• The OEM (Bosch) Throttle Body for Porsche 997 Turbo is 74mm

Are there any downsides to a bigger throttle body?

• An excessively oversized throttle body can cause twitchy throttle response making the car hard to handle at low speeds or even on the track in subtle corners.  The 74mm throttle body works very well on a 996 turbo.   The GT3 can be a little large, or a 92 or even 100mm would be an issue.
• Without proper tuning to match the throttle body the fuel trims and idle can be very lean.