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Weistec Intake System Mercedes-Benz C450 | C400 2013-2021
$1599.00
An upgraded intake system increases the amount of airflow available to your engine while still properly filtering out debris or particles from the road. In vehicles that have the M276 with twin turbochargers, higher airflow allows the engine to make more power. This is most apparent in vehicles running higher boost levels such as those that are tuned or have upgraded turbochargers. The stock airboxes, even with high-flow filters, show their limitations, especially with upgraded turbos.

The Weistec M276 Intake System provides proper airboxes that help ensure the majority of the air that comes into the system is being pulled from outside the engine bay giving enough air to meet power demands while still filtering out particles and debris from the road. The airbox is fed via the same air inlets on the radiator core support that the stock airboxes use, pulling fresh air from in front of the radiator. The carbon fiber top panels of the box are removable for servicing the filters.

The filters feature a 4-ply lightly oiled cotton media filtration element. This filter element is perfect for high airflow applications as it offers minimal airflow restriction while providing enough air filtration to protect your engine in road and track use. The airbox lids consist of a base layer of 0.03" thick 304 stainless steel and a top layer of carbon fiber, giving the intake a sleek and refined look. The core support adapters are made from 80 durometer silicone and attach the airbox directly to core support mounted air intake ducts, providing unrestricted airflow to the airbox. Competitors' airboxes utilize the stock intake core support adapters which have a bellows design which adds a lot of restriction and greatly decreases the benefits of an aftermarket intake. The other options on the market also fail to offer the same fitment and sealing/isolation from engine bay heat that the Weistec M276 Air Box offers.

Our intake features high-flow turbo and airbox inlets and filters with significantly more surface area than stock making for a properly thought-out design that best provides increased airflow to the turbos. The before and after dyno chart on this page clearly shows how much better the intake allows the turbos to breathe at every point in the RPM range.



Features:
  • 100% bolt-on Installation
  • 100% Serviceable
  • Increased efficiency and reduced intake temperatures
  • Reduces wastegate duty needed for higher-than-stock boost levels
  • Substantially more airflow than OEM
  • Designed using high-precision laser scanning
  • Designed and Manufactured in the USA


Fitment:
  • Mercedes-Benz C400 Base (W205) Twin Turbo 3L V6 (M276) 2013-2021
  • Mercedes-Benz C43 AMG Base (W205) Twin Turbo 3L V6 (M276) 2015-2021
  • Mercedes-Benz C450 Base (W205) Twin Turbo 3L V6 (M276) 2015-2017
Proposition 65

WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

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What Is Weistec Engineering?

Based out of Orange County, California, Weistec Engineering is an industry leader in research, development, and design. While the company was only established in late 2010, founder Michael Weiss and his partner Steve Atneyel both have an impressive track record of working with some of the fastest and most powerful vehicles in the world. The duo were both engineers for major American OEM and aftermarket performance companies; Michael was involved with advanced engineering, while Steve specialized in computer calibration.

Michael Weiss and Steve Atneyel decided to branch out on their own and combine their expertise and experience. The pair were, and still remain, avid Mercedes enthusiast and realized that there was a huge gap in the market for a company dedicated to engineering state-of-the-art performance systems for cars powered by motors like the M156 and M159 AMG. Since its inception over a decade ago, Weistec has grown to provide customers with the highest level of satisfaction and value through unyielding tests and continuous improvements in Mercedes products and performance. 

What Does Weistec Offer?

Engineering and design are the two core services of Weistec Engineering. The Weistec team offers an array of services and capabilities thanks to the team’s combined experience from multiple fields. Whether you have a new idea or are looking to improve an existing design, Weistec can bring your concept to reality while protecting your vehicle’s design form and engineering function. Services include CAD, CAM, rapid prototyping, CNC machining, laser cutting and etching, casting, plastic injection molding, 3D laser scanning, and much more.

Weistec Engineering also offers a comprehensive line of products to the import and exotic market, covering vehicles such as Mercedes-Benz, Audi, Pagani, Alfa Romeo, BMW, McLaren, Ford, Aston Martin, and Maserati. No matter what type of upgrade you are looking for, Weistec has something for everyone when it comes to performance products, suspension parts, electrical components, interior/exterior accessories, and wheels/tires.

Weistec Engineering keeps nearly every aspect of its production process in house to guarantee only the highest quality. From conceptual 3D designs to in-house manufacturing and, ultimately, road and track testing, Weistec boasts relentless attention to detail on everything it offers. Specializing in computer-aided design and vehicle calibration, Weistec has the ability to manufacture quality products that are capable of withstanding even the most rigorous testing conditions. From OEM vehicle manufacturers to the aftermarket performance enthusiast, Weistec aims to deliver innovative solutions that address a wide range of client needs and desires. 

Find Weistec Parts at Vivid Racing

Vivid Racing carries an extensive lineup of Weistec products to suit all your needs and preferences. Our inventory is virtually endless with everything you could possibly need to upgrade your vehicle in terms of performance, power, handling, suspension, aesthetics, and accessories. If you cannot find what you are looking for above or need help choosing a product for your needs, please give us a call at (480) 966-3040. We will advise you on the possible options and walk you through the entire purchase process to ensure a hassle-free experience.

Weistec Limited Warranty

1. Warranty on Weistec Turbocharger Systems, Supercharger Systems, Exhaust Systems and Engine Accessories

12 month Weistec Limited Warranty. Valid 12 months from sales date with valid registration.The following exclusions apply to all Weistec Limited Warranties.

Weistec's limited warranties do not cover any of the following damages or items:
  • Damages to and/or failure of any non-Weistec component or equipment on a vehicle including, but not limited to, the engine, electrical system, transmission and differentials.
  • Damage caused by "Acts of God", normal wear and tear, or damage to a vehicle or engine caused by, tuning by others, collision and/or engine failure.
  • Any costs incurred for towing or downtime of the vehicle.
  • Any rental vehicle costs
  • Any labor costs to diagnose problems or to remove or replace the Weistec products; or any damage caused by the use of another company's product.
  • Any shipping costs.
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Wholesale price $1,509.46
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Product Added At Thursday 02 January, 2025
Product Modified At Tuesday 27 May, 2025
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Last Edited By kathi@vividracing.com
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Vendor Inv Cost Retail Jobber MAP Core Updated
Weistec Engineering $1,279.20 $1,599.00 ? ? ? 2025-05-27 16:40:23


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