Hey everyone, Mod in Japan carries engine, intake, airflow, cooling, ignition, and supporting parts for the RX - 4th Gen (2016-2022). This guide is meant to help owners quickly understand the main upgrade paths and choose the right setup.

Pricing note: Some brands restrict advertised pricing online. For our best available price, please click “Request Quote” on the product page and we’ll follow up with the best deal we can offer.

Questions? Email us at sales@modinjapan.com and we’ll help you choose the right engine or intake setup.

Need a formal quote? Please email sales@modinjapan.com with your full name, email address, phone number, billing address, and shipping address. We’ll email you a formal quote that you can review and use to complete checkout.

Fitment and emissions note: Always confirm year, trim, engine, drivetrain, and local emissions laws before ordering. Headers, downpipes, catalytic converters, race pipes, and some intake parts may not be emissions legal for street use in all areas.

Quick RX - 4th Gen (2016-2022) Engine & Intake Buying Guide

Drop-in Air Filter: Best first upgrade for simple maintenance and mild airflow improvement while keeping the factory airbox.

Intake System / Intake Pipe: Best choice if you want more intake sound, improved airflow, and a cleaner engine bay look.

Headers / Manifolds: Best for owners chasing stronger sound and performance potential, but these are more involved installs and may affect emissions compliance.

Cooling Parts: Best for reliability, especially on older vehicles, track use, hot climates, or high-mileage builds.

Fuel and Ignition Parts: Best for maintenance, high-mileage refreshes, and supporting more serious engine builds.

Quick Recommendations

Best first upgrade: Drop-in filter or intake pipe
Best overall advice: Match the part to your goal: maintenance, sound, airflow, cooling reliability, or power support.

Intake & Air Filters

HPS Air Intake Hose Blue Lexus RX350 2016-2020- HPS-57-1880-BLUE
Type: Intake / intake pipe
Best For: Intake sound and airflow improvement
SKU: HPS-57-1880-BLUE
Product URL:
https://www.modinjapan.com/hps-air-i...1880-blue.html


Headers, Manifolds & Front Pipes

MagnaFlow 16-20 Lexus RX350 V6 3.5L OEM Grade Direct-Fit Catalytic Converter - 21-096
Type: Engine / intake part
Best For: More sound, flow and performance potential
SKU: mag21-096
Product URL:
https://www.modinjapan.com/magnaflow...gn-21-096.html

For setup recommendations, availability, or formal quotes, email sales@modinjapan.com.

 

Your links in the post are not vailid
Additioanlly the website does not even list the RX 350 or RX 450 on it
This post is a waste of time in my opinion

 

Our website doesn't segment the RX in our navigation since there aren't a ton of options for the car in terms of mods. This is really all thats out there. We have been having our team output what we can for every application Lexus so at a minimum all vehicles have a reference guide on what's out there per application.