75mm Big Bore Throttle Body for 2003-2006 G35/350Z VQ35DE – CNC Machined, Plug-and-Play Upgrade
Unlock better airflow and sharper throttle response on your VQ35DE with this 75mm Big Bore Throttle Body, engineered as a direct bolt-on upgrade for 2003-2006 Nissan 350Z, 2003-2006 Infiniti G35 Coupe/Sedan, and 2003-2004 Infiniti G35 Sedan, replacing the restrictive factory 70mm unit to reduce intake bottlenecking and improve air velocity into the plenum for stronger mid-range and top-end gains. CNC-machined from high-grade billet aluminum with a precision-bored 75mm opening, this throttle body features a smooth, hand-polished bore and a low-profile butterfly shaft to minimize turbulence and maximize CFM flow, giving you quicker tip-in, more linear pedal feel, and a noticeable improvement in throttle response during aggressive driving and rev-matching. It retains the factory electronic throttle motor and TPS sensor mounting locations, so installation is plug-and-play with no cutting, splicing, or ECU reprogramming required for most bolt-on setups, while the hard anodized finish resists heat soak, corrosion, and engine bay wear to maintain a clean look long-term. The larger bore diameter improves efficiency on naturally aspirated builds with intakes, headers, and exhaust, and also provides extra headroom for mild forced induction or nitrous applications where the stock throttle body becomes a restriction. Whether you’re refreshing a high-mileage throttle body, chasing a few extra wheel horsepower, or just want your G35 or 350Z to feel more responsive and aggressive on the street or track, this 75mm unit delivers improved drivability, better airflow, and OEM-fit reliability in a single upgrade.
Key Features:
- Application: Direct bolt-on fit for 2003-2006 Nissan 350Z and 2003-2006 Infiniti G35 Coupe/Sedan with VQ35DE engines.
- Bore Size: 75mm bore increases airflow over the stock 70mm throttle body for improved intake efficiency and power gains.
- CNC Machined: Precision CNC-machined from billet aluminum for perfect sealing, dimensional accuracy, and zero vacuum leaks.
- Smooth Bore: Hand-polished internal bore eliminates casting flaws and reduces turbulence for smoother, unrestricted airflow.
- Plug-and-Play: Retains factory electronic throttle motor and TPS sensor mounting, requiring no wiring changes or ECU reflash for most bolt-on setups.
- Improved Response: Delivers quicker throttle tip-in, sharper rev matching, and more linear pedal feel for better drivability.
- Durable Finish: Hard anodized coating resists heat soak, corrosion, and engine bay wear to maintain a clean look long-term.
- Performance Gain: Reduces intake restriction to support stronger mid-range and top-end power on NA builds with intakes, headers, and exhaust.
- Low-Profile Shaft: Reduced-diameter butterfly shaft minimizes airflow disruption and maximizes CFM through the bore.
- OEM Fitment: Uses factory gasket specs and bolt pattern for a direct replacement with no modifications needed to the intake manifold.