Sale

Air and Fuel› Intake Manifolds and Components

KTuned

74mm Drive By Wire Throttle Body

$450.99 $405.89 Save $45.10

SKU: KTD-74D-RBC

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The K-Tuned 74mm Drive By Wire Throttle Body is a direct bolt-on upgrade for RBC/RRC manifolds and others with a similar bolt pattern. It features a true 74mm bore, which is larger than the ZDX throttle body's butterfly. This throttle body requires an engine management system, such as Flashpro, to handle the increased airflow.
Show original supplier description
The K-Tuned 74mm Drive By Wire Throttle Body (KTD-74D-RBC) is engineered to significantly increase airflow to your engine, offering a performance boost for compatible Honda and Acura models. This unit boasts a true 74mm bore, exceeding the size of the stock ZDX throttle butterfly for greater air induction capacity. It incorporates an OEM connector, eliminating the need for a jumper harness and ensuring a near-factory appearance once installed. The machined 74mm bore and brass butterfly are visible internally, showcasing its robust construction. For added versatility, it includes two 1/8NPT vacuum ports on the underside, suitable for evap, brake booster, or vacuum reference connections. Included with the throttle body are a thermal gasket, mounting bolts, and two 1/8NPT plugs for immediate installation. The inlet requires a 3-inch silicone coupler, and users may need to adapt this to their existing intake piping. It is important to note that the K-Tuned 74mm Drive By Wire Throttle Body requires engine management software, such as Hondata Flashpro, to effectively manage the increased airflow and ensure proper engine operation. Without this tuning, optimal performance and drivability cannot be achieved. This throttle body is specifically designed for the following applications: 2006-2015 Honda Civic Si, 2006-2009 Honda S2000, 2013-2015 Acura ILX, and 2009-2014 Acura TSX.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandKTuned
Part NumberKTD-74D-RBC
CategoryAir and Fuel
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy