The best K-Series throttle body depends on your intake manifold’s bolt pattern, desired bore size, and sensor requirements. The Tektall 70mm model is best for buyers needing dual PRB/PRC and RBC/RRC patterns, while the K-Tuned 70mm model offers a stated dual-pattern design with a bracket. Skunk2’s 70mm and 74mm options suit buyers comparing two bore sizes, and the Bull Boost 70mm model includes a gasket and listed hardware. Confirm fitment details before choosing.
| Product | Best For | Stated Bore |
|---|---|---|
| Tektall Billet Throttle Body | Dual-pattern manifold fitment | 70mm |
| Bull Boost Billet Throttle Body | Buyers wanting listed gasket and add-ons | 70mm |
| K-Tuned Cast Throttle Body | PRB/RBC pattern applications | 70mm |
| Skunk2 Pro Series | 70mm forged-billet option | 70mm |
| Skunk2 Pro Series 74mm | Buyers seeking a larger stated bore | 74mm |
Tektall 70mm Dual-Pattern Throttle Body
Best for: Buyers whose intake manifold uses a PRB/PRC or RBC/RRC bolt pattern. This 70mm replacement is listed for K-Series applications including Integra RSX DC5, Civic Si EP3, and K20/K20A engines. The listing describes an alloy body with CNC machining and an ethanol-resistant finish.
Its dual bolt pattern makes it a useful choice when a buyer needs one of the named manifold patterns. The stated sensor requirement is important: the listing says to use sensors from a 2002 RSX Type-S. Confirm that requirement and the specific vehicle and manifold fitment before ordering.
Bull Boost 70mm Billet Throttle Body
Best for: Buyers looking for a 70mm K-Series throttle body with a gasket and listed add-ons. The product is described as CNC aluminum and as working with a standard intake manifold. Its title names Honda and Acura applications including RSX, CRX, Civic, and Integra.
The included gasket may be useful when planning the installation, and bolts and other pictured add-ons are also mentioned in the feature list. However, the listing does not specify a bolt pattern in the supplied details. Check the flange pattern and included hardware against your manifold before purchase.
K-Tuned 70mm Cast Dual-Pattern Throttle Body
Best for: Buyers matching a 70mm body to a PRB or RBC bolt pattern. The product name identifies it as a cast K-Series throttle body with a dual PRB/RBC pattern, and the feature list says it includes a bracket. These details make it a straightforward candidate when those pattern names match the planned intake setup.
The provided features describe the product as premium quality but do not give additional material, sensor, or vehicle-specific fitment details. Verify those points for your setup rather than assuming compatibility from the K-Series label alone.
Skunk2 Pro Series 70mm Throttle Body
Best for: Buyers who want a 70mm option made from forged billet aluminum. Skunk2 lists CNC-machined 6061-T6 aluminum, a hard-anodized finish, and a precision-machined brass throttle plate. Those material and construction details distinguish it from listings that provide fewer specifications.
Choose this model if 70mm is the intended bore and its fitment matches your manifold and engine configuration. The supplied features do not identify a bolt pattern or sensor requirement, so confirm those details before ordering.
Skunk2 Pro Series 74mm Throttle Body
Best for: Buyers specifically seeking a 74mm bore for an Acura or Honda K-Series application. Like the 70mm Skunk2 model, it is listed as CNC-machined from forged 6061-T6 aluminum, hard anodized, and fitted with a precision-machined brass throttle plate.
Its larger stated bore is the key comparison point against the other products here. Do not choose it based on diameter alone: check manifold opening, bolt pattern, and other installation requirements. The provided features do not state those details.
Buying Guide: How to Choose a K-Series Throttle Body
Which bolt pattern does your intake manifold use?
Start by identifying the manifold’s bolt pattern, then compare it with the product listing. The Tektall listing names PRB/PRC and RBC/RRC patterns; K-Tuned names PRB/RBC. The other supplied feature lists do not specify a pattern. When fitment information is incomplete, confirm it with the seller or manufacturer before buying.
Should you choose a 70mm or 74mm bore?
Compare the bore size with the intake manifold and the requirements of your build. Four products here are listed as 70mm, while the larger Skunk2 option is 74mm. A larger stated diameter is not automatically the right choice; verify that the manifold and planned setup are suited to that size.
What materials and included parts matter?
Product details vary. Skunk2 lists forged 6061-T6 aluminum, hard anodizing, and a brass throttle plate. Tektall lists an alloy body and CNC machining. Bull Boost lists CNC aluminum and a gasket, bolts, and other pictured add-ons. K-Tuned lists a bracket. Check the exact package contents and installation requirements for your selected listing.
Do sensor and vehicle details need confirmation?
Yes. Tektall specifically says to use sensors from a 2002 RSX Type-S. The other supplied feature descriptions do not give sensor details. Confirm engine, vehicle, manifold, sensor, and linkage requirements for the exact application instead of relying only on a general K-Series designation.
Frequently Asked Questions
Are all K-Series throttle bodies interchangeable?
No. Bolt pattern, bore size, sensor requirements, and other fitment details can differ. Match the product specifications to the manifold and vehicle setup.
What does dual-pattern mean on these listings?
It means the listing identifies more than one bolt-pattern option. Tektall names PRB/PRC and RBC/RRC, while K-Tuned names PRB/RBC. Confirm the exact pattern on your manifold.
Is a 74mm throttle body better than a 70mm model?
Not in every setup. The right size depends on the manifold and build requirements. Verify fitment before selecting a larger bore.
Which product explicitly lists a sensor requirement?
Tektall states that sensors from a 2002 RSX Type-S are required. The other supplied product details do not specify a sensor requirement.
Which options list installation accessories?
Bull Boost lists a gasket, bolts, and other pictured add-ons. K-Tuned lists a bracket. Check the product listing to confirm which parts are included.