Air and Fuel› Intake Manifolds and Components

CXRacing

80mm Billet Aluminum Throttle Body

$289.00

SKU: TB-RB20-80

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

Easy — 1–2 hours

Overview

The CXRacing Q45 80mm Throttle Body is a billet aluminum upgrade designed for RB20DET and RB25DET engines. It features an 80mm throttle opening and a 3.5-inch inlet. This throttle body utilizes a Q45 bolt pattern and is made in the USA.
Show original supplier description
The CXRacing Q45 throttle body is a performance upgrade designed for Nissan Skyline and Silvia vehicles equipped with RB20DET and RB25DET engines. This 80mm throttle body is constructed from billet aluminum for durability and features a 3.5-inch (89mm) OD inlet diameter, providing increased airflow potential over stock components. This throttle body is specifically designed to fit RB20DET and RB25DET engines, intended for use with an intake manifold that is compatible with the Q45 throttle body. It is not a universal part and is engineered for a direct bolt-on fit to factory RB20/25 configurations when the correct intake manifold is present.

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

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Specifications

BrandCXRacing
Part NumberTB-RB20-80
CategoryAir and Fuel
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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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.

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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.

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