SKU: 38543881454

Hybrid Racing 75mm K-Series Throttle Body - RBC

Sale price$180.00 Regular price$200.00
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Ships within 48 hours · Estimated delivery Jul 25 - Jul 30

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Description

Hybrid Racing 75mm K-Series Throttle Body - RBCFor years, Hybrid Racing's K Series throttle bodies have been the go to upgrade for enthusiasts looking to maximize performance. Since production ended, demand has only grownand they heard you loud and clear. Now, Hybrid is bringing back their industry leading design, refined and reengineered for even greater performance and reliability. The latest version stays true to its winning formula while introducing key improvements. The new RBC Throttle Body

For years, Hybrid Racing's K-Series throttle bodies have been the go-to upgrade for enthusiasts looking to maximize performance. Since production ended, demand has only grown—and they heard you loud and clear. Now, Hybrid is bringing back their industry-leading design, refined and reengineered for even greater performance and reliability.

The latest version stays true to its winning formula while introducing key improvements. The new RBC Throttle Body is a direct bolt on for the RBC/RB/RRB intake manifolds. However, this throttle body is only designed for Drive By Cable, so it will not fit the donor cars that many of those manifolds come from. Hybrid rotated the IACV port to improve clearance between the radiator and wiring connector, ensuring a cleaner, more efficient installation. The TPS mount now mirrors the OEM Honda design, guaranteeing precise throttle position sensor calibration for seamless integration with your engine management system.

Precision-machined from 6061-T6 aluminum, this throttle body is built for the RBC, RRB, RRC, and RBB bolt patterns. By designing it specifically for these intake manifolds, Hybrid has eliminated the constraints of the PRB bolt pattern, allowing the inlet to a full 75mm. Whether you’re running a naturally aspirated or forced induction setup, this throttle body delivers the airflow your engine needs. It’s also designed to work perfectly with 3-inch couplers, ensuring a secure and optimized intake path.

To install the throttle body on the RRC Manifold, you must use the IACV Block Off Plate ( HYB-ICV-01-04 ) as the RRC Manifold does not have an idle air control ability. 

Features

  • Smooth Bore 75mm ID

  • Direct Bolt On to RBC/RRB/RBB Manifolds

  • Slimline Cable Bracket

  • Rotated IACV for Better Clearance

*Some images show factory parts, such as MAP Sensor, IACV, and intake manifold. These items are sold separately, and not included with the throttle body. 

Install Guide

 Vehicle application: 

2002-2006 Acura RSX*
2002-2005 Honda Civic Si*
1990-2001 Acura Integra**
1988-2000 Honda Civic**
1993-1997 Honda Del Sol**
1988-1991 Honda CRX**
*Must Use RBC/RRB/RBB Manifold
**K Swaps Using RBC/RRB/RBB Manifold

IN THE BOX
(1) Thermal Gasket
(1) 1/8 NPT Hose Barb Fitting
(1) 1/8 NPT Plug
(1) EPDM Rubber Cap
(1) Constant-Tension Spring Clamp
(4) JIS M8x1.25-35mm Flanged Bolts
(2) M5X0.8 Pan SEMS 12mm
(1) M5X0.8 Pan SEMS 16mm
(2) M5X0.8 Pan SEMS 20mm

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 38543881454

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Lina
West Palm Beach, US
★★★★★ 5
Fabulously bizarre and effective
These silicone socks have to be the strangest item I have ever ordered from Amazon. However strange they are, I was pleasantly surprised with them. My order came with two pairs, and I took one pair out to wash before use. I laughed at handling them then because they were a cross between hospital socks and leftover mannequin skin…trippy. The socks dried fast, so I put on foot lotion and put the socks on. The socks are beige skin tones that cover the entire foot up to the ankle, basically booties. The silicone is very soft and makes putting on and taking off the socks easy. They are also surprisingly easy to walk around in because the bottoms have grips, again, like hospital socks. I walked on tile, hardwood, and carpet with no slipping. The booties also stayed in place with no issues. I was concerned my feet would sweat, but that didn't happen. I was able to wear them for 3 hours without sweaty feet. When I took them off, my feet were a lot more soft than before or if I had used regular socks. For reference, my feet are not terrible, but the skin around my toes is dry and peeling from my picking(gross, I know). The socks I got are a size large, which worried me because they are big, but the site said for my shoe size (9) that's what I should order, and they were right. They are the perfect size and stretchy for room. I can't believe how cool and well-thought-out these socks are, on top of working. Honestly, these are among the top 20 favorite items I've ordered from Amazon. They may look incredibly strange, and they are, but they work wonders.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2025
A
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Amazon Customer
Lexington, US
★★★★★ 3
Not well made
I have used these for 2 weeks now and one of them has a hole in the sole... I won't ever buy them again
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Reviewed in the United States on July 15, 2025
K
Verified Purchase
K. Davis
Boise, US
★★★★★ 5
Works for foot psoraisis
Size: 2 pairs black L
Got these for work (service industry) to reduce issues with psoriasis and blisters while putting on 20k+ steps a day. Over time the wounds healed and I could work without so much pain. I now don't use them all the time like I used to, only when a new lesion or blister appears, too prevent a breakout. Tip: if you're not in full breakout, wear thick socks under these as a barrier to friction.
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Reviewed in the United States on April 28, 2026
K
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Kim C
Draper, US
★★★★★ 4
Work well but run small
Size: 1 pair black L
They do seem to run a bit small. I bought them for my bf but snagged them from him because I couldn’t resist! I’m about a W8/12 and they were just a little big but unlike others, I just put them on while sleeping and didn’t walk around with them. If you’re just planning on that, they did a great job at sloughing and moisturizing 😎
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Reviewed in the United States on April 25, 2026
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Aaron Duncan
Pawtucket, US
★★★★★ 5
Good socks they work.
Size: 2 pairs black L
I normally wear size 13&half to 14 men's, and these fit me ok. They sit just below the ankle. They can get a little tight for me so you should look out for that if you are on the thicker side. But they work as advertised and help moisturize your feet. I recommend wearing them if you're going to just be hanging around home for a bit in one spot as they can be a little slippery to walk in if you go fast. Would not recommend going up and down stairs.
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Reviewed in the United States on August 28, 2025

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