Intake Manifold and 70mm Aluminum Throttle Body for Honda B16 B18 D16 F22 B20 Engines
Upgrade your Honda/Acura performance with the PQY 70mm Throttle Body, a precision-engineered intake upgrade designed for B-series and D-series engines (B16/B17/B18/B20, D15/D16, F20/F22, H-series). Cast from CNC machined billet aluminum, this high-flow throttle body delivers a substantial increase in air delivery while preserving smooth, OEM-like throttle response. It’s the ideal complement for modified, NA or boosted builds that demand more air to realize their power potential.
Engineered for real-world use, this throttle body doesn’t just add flow—it preserves drivability. It features countersunk stainless steel mounting bolts, a solid brass throttle plate, and fully machined bores with idle adjustment screws for fine-tuning. When paired with a Pro Series Intake Manifold, you can achieve a precise bore match and maximize airflow, translating into meaningful horsepower gains across the powerband.
Important compatibility notes: due to the larger 70mm diameter, you must use a Pro Series Intake Manifold or adjust the intake manifold flange to match the bore while keeping the IAC (Idle Air Control) passage separate. It will not fit on some D-series manifolds with an IAC opening smaller than 70mm. This throttle body is intended for modified engines with increased airflow demands and delivers the best results when used with a compatible manifold and appropriate tuning.
With a focus on performance and longevity, the 70mm series for B-series engines is designed to deliver horsepower gains throughout the powerband, and even more so on boosted builds. It’s a robust upgrade that maintains steady, reliable operation under spirited driving and racing conditions.
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Benefits & Tips
- Optimize flow your modified engine demands by upgrading to the 70mm bore when paired with a Pro Series Intake Manifold to minimize bottlenecks and maximize horsepower across the RPM range.
- For the best results, ensure the IAC passage is kept separate during flange matching and fine-tune with the idle screw to maintain smooth idle at all RPMs.
- Check compatibility before installing: this throttle body is not compatible with down-flow manifolds or D-series manifolds with IAC openings smaller than 70mm; use a Pro Series manifold or similar setup to achieve proper fitment.
Product specifications
- Brand: PQY
- Part number: 6959
- Interchange Part Number: 309-05-1050
- Model: 70mm Throttle Body
- Material: CNC machined billet aluminum alloy
- Bore diameter: 70mm
- Application: Manual transmission Honda/Acura engines including B16A2/A3, B17A1, B18A1/B1/C1/C5, B20B/Z; D15B7/B8/Z1; D16Y7/Y8/Z6; F20C1; F22C1; applicable 1990–2004 Integra/S2000 and related models
- Origin: Mainland China
- Weight: 0.77 kg
- Special Features: THROTTLE BODY
Package includes:
- 1 x PQY 70mm Throttle Body (Model 6959 / Part 309-05-1050)
Warnings/Reminders
- Not compatible with engines featuring down-flow intake manifolds; use a Pro Series Intake Manifold or similar solution.
- Due to the 70mm bore, may not fit some D-series manifolds with IAC openings smaller than 70mm; ensure proper manifold compatibility or use a Pro Series manifold.
- When upgrading, verify all tuning aspects (fuel, ignition, and idle control) to maintain reliable drivability.