AMS Performance R35 GTR Big Bore Billet Throttle Bodies

50% increase in cross sectional area to support 2000+ HP.



SKU ALP.07.08.0006- Categories , Brand:

California Residents: Prop 65 Warning

Additional information

Weight 5 lbs
Dimensions 8 × 8 × 8 in

TB Set w/ Std Hose Flanges, TB Set w/ Vibrant HD Flanges, TB Set w/ AMS QuickClamp™ Flanges

CARB And / Or EPA Compliance Testing Not Completed

While we believe this product is either CARB EO exemption applicable, or complies with the EPA's Anti-Tampering Policy, we have not completed the required testing and administrative process at this time. This product is not available to purchase for emissions-controlled vehicles located within the state of California, or available to ship to California addresses, without a completed AMS Race Waiver form. International users outside of the United States should act in accordance with their local laws and regulations.

2009-2011 (CBA) Nissan R35 GT-R | 2012-2016 (DBA) Nissan R35 GT-R | 2017-2019 (Facelift DBA / “EBA”) Nissan R35 GT-R | 2020-Current (4BA) Nissan R35 GT-R
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With 23 years of documented research and development in the forced induction field, AMS Performance has proven itself as the powerhouse in the automotive aftermarket. Our award winning performance systems are what all others are measured by.

At around 800HP, your stock throttle bodies become a restriction to the intake system.  The negative effects of this bottleneck are exacerbated exponentially as power increases from there on.  By enlarging the diameter of the throttle bodies from the stock 60mm (ID) to a massive 73.5mm (ID), we increased the cross sectional area by 50%.  This provides much improved power gains – especially over the 1000HP mark.

  • 73.5mm throttle bodies – the largest OEM-style on the market
  • 22.5% increase in diameter, 50% increase in cross sectional area
  • Increased mid-range and top end power
  • Does not adversely affect low-end power
  • Available with 3″ AMS QuickClamp™, 3″ Vibrant HD Clamp, or 3″ Standard (Silicone Hose) Flanges

gtr throttle body upgrade mods kit


The Largest OEM-Style VR38 Throttle Bodies On The Market

Since we are a true performance automotive manufacturing company, we employ a team of highly qualified engineers with years of motorsports experience. Our engineering team was given the task of designing the largest, best-performing throttle bodies on the market to feed our AMS Performance R35 GT-R Carbon Fiber Intake Manifold, and they delivered!  Each CNC billet 6061-T6 aluminum housing was specifically designed to provide enough air flow to support 2000+ HP without issue – implementing enlarged diameter 73.5mm ID bores along with low profile throttle body shafts to minimize restrictions even further. AMS Big Bore Throttle Bodies utilize your existing Nissan OEM drive-by-wire electronics. Simply swap out the internal components from your stock throttle bodies and you are ready to go.



Product Notes

  • For proper drivability these AMS Big Bore Throttle Bodies are suggested for use with standalone engine management systems only.
  • Factory throttle body electronics required from existing stock throttle bodies.
  • Specify 3″ AMS QuickClamp™ Flanges, 3″ Vibrant HD Clamp Flanges, or 3″ Standard Flanges in the Drop Down Menu.

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