What 70mm Changes
A larger throttle body provides:
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Increased airflow capacity
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Improved high-RPM breathing
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Better support for turbo setups
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Compatibility with larger intake manifolds
On stock engines, gains may be modest. On built or boosted motors, it makes sense.
Key Features
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70mm bore diameter
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Compatible with RBC / RRC / PRB / PRC manifolds
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CNC-machined aluminum construction
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High-flow butterfly design
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Direct bolt-on for supported patterns
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Supports cable or DBW setups (verify version)
Translation: ready for real airflow.
Tektall 70mm Billet Intake Manifold Throttle Body Replace for K-Series K20 K24 RBC/RRC/PRB/PRC Pattern Acura RSX
Ideal Applications
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RBC manifold upgrades
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RRC high-RPM builds
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Turbocharged K20/K24 setups
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K-swapped RSX projects
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400+ HP builds
Especially beneficial when paired with larger injectors and proper tuning.
Good Quality
Top premium-quality, ethanol-resistant, Made of Alloy,.
CNC Machined
Well CNC Machined, Accurate, Good finishing to ensure the Durability and the reliability.
Package Includes
1 x 70mm Throttle Body,
1 x Gasket,
1 x Carbon Dirt Jet Cleaner Tool,
1 x Installation Accessories Kit.
You will received everything shown in the picture.
Fitment
- Tektall Billet Intake Manifold Throttle Body Replace for Integra RSX DC5 CIVIC SI EP3 K20 K20A (Acura / K-Series Engines Only)
- Dual bolt pattern PRB/PRC and RBC/RRC.Require to use Sensors from 2002 RSX Type-S.
IACV can be plugged with supplied 1/8NPT plugs (no block off required)
Please confirm the item Number if it matches your machine before you purchase.
Installation Considerations
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Verify throttle pattern (RBC/RRC/PRB/PRC)
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Confirm cable vs drive-by-wire compatibility
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ECU tuning recommended after install
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Ensure proper idle calibration
Because airflow changes require calibration—not hope.
Compatibility
Fits:
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Acura RSX (K20 variants)
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K20 / K24 engines using RBC, RRC, PRB, PRC intake manifolds
⚠️ Always confirm bolt pattern and throttle cable/DBW setup before ordering.
Final Verdict
The 70mm K-Series Throttle Body is a smart airflow upgrade for serious K20 and K24 builds running RBC/RRC/PRB/PRC manifolds. It supports higher RPM power and boosted applications with proper tuning.
Because airflow bottlenecks are optional.
Josi –
Fits and performs well, ran this setup for over a year now about 13k miles and no complaints.
doua –
Does not seal properly around throttle body plate causing bad idle. You can see all the way through if you angle it good enough
Andrew Clarke –
Great quality and works well with no issues.
Paul Elisha –
This throttle body is a good quality budget friendly option for people not looking to break the bank. The spring stiffness is perfect and the throttle plate snaps very smooth, the pulley is adjustable making it easy to install multiple different cables,Only reason for the 4 stars is that the included hardware does not work the bolts to hold the tb in place are too short, and the iacv plate at the bottom does not have the recessed grove for the o-ring , I used honda bond to seal it , if you’re not using a iacv then it comes with plugs to cap it off.This item is very simlaur to a ktuned tb
Joseph Boland –
bolts are to short to bolt it to intake, no seals included. now im stuck with no car til i get one that is made porperly
Freddie –
This will now be my 2nd purchase of this tb for a k swapped civic and I have to say it’s a perfect fit and bolts right up to my skunk2 intake manifold with ease . Cheap alternative for the guys out there building on a budget . I was able to put down 585hp with this tb money well spent !
Shelby M. –
Overall seems like a good product but due to lack of packing in the box it damaged it.
Justin m. –
Worked great ! Made 215hp with a stock k24 only bolt ons and rbc manifold