Description
Big-Bore Throttle Body
A 70mm CNC billet throttle body that opens up airflow over the stock Honda throttle for sharper response and more top-end power.
70mmThrottle bore
CNC billetAluminium build
CableThrottle type
B / D / HHonda series fit
Overview
The Works Engineering 70mm Throttle Body is a CNC-machined aluminium bolt-on that replaces the factory throttle body on Honda B-, D- and H-series engines. Its enlarged 70mm bore flows more air than the smaller stock throttle, sharpening throttle response and freeing up horsepower across the rev range. It is cable-operated to match the OEM throttle cable and works with the standard intake manifold.
Aimed at B16/B18, D15/D16 and H22/H23 owners chasing bolt-on gains, or feeding a built or forced-induction engine that needs more airflow than the restrictive factory throttle can supply.
Specifications
BrandWorks Engineering
Bore size70mm
MaterialCNC-machined aluminium
Throttle actuationCable-operated (not drive-by-wire)
Upgrade over stock70mm bore is larger than the OEM Honda throttle for more airflow (exact stock size: confirm)
FitmentHonda B-series (B16/B17/B18), D-series (D15/D16), H-series (H22/H23)
B / H series noteSingle-IAC applications only
D-series noteRequires D16Y8 intake manifold
Intake manifoldWorks with standard intake manifold
Part number— confirm —
What's in the box
- Throttle body
- mounting gasket
- TPS not included
Fitment
ApplicationHonda B / D / H series
InstallBolt-on replacement using the factory throttle cable and gasket; reuse your existing TPS (not included) and IAC.
B- and H-series fitment is single-IAC applications only, and D-series requires a D16Y8 intake manifold - confirm your exact engine, IAC setup and manifold flange, and that a 70mm throttle suits your build before ordering.
Best suited for
Bolt-on power
Built B/D/H engines
Forced induction
A large 70mm throttle can soften low-rpm response on an otherwise stock engine and usually needs retuning to run its best; TPS is not included.
Fast dispatchShips in 24–48h
Genuine productAuthentic Works Engineering
Easy returns10-day returns, unused items
Fitment helpWe'll confirm before you buy
Returns
Return within 7 days of purchase, provided the item is unused and in its original condition and packaging. Taxes are non-refundable.
We can’t take back parts that have been fitted or modified, unsealed electrical components, ECUs and sensors, opened gaskets, seals and o-rings, or clearance items. Parts we order in specifically for you can’t be returned for change of mind — we’ll tell you before you order if yours is a special order.
If a part is faulty, damaged in transit or isn’t what you ordered, we’ll put it right and cover the return shipping.
Please contact us before returning anything. Full terms are in our Refund policy.
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