2018 Kia Optima Exhaust System Kits
Keep Your 2018 Kia Optima in Top Shape with Quality Exhaust System Kits
Whether you’re repairing or upgrading your Exhaust System Kit, using high-quality parts is key to keeping your 2018 Kia Optima looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Exhaust Manifold Hardware Kits and Exhaust System Kits. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.
Competitive Prices and Extensive Inventory
The average price for a 2018 Kia Optima Exhaust System Kit at Advance Auto Parts is around $662.99, with a range that starts at $29.99 and goes up to $1,295.99. With 2 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Exhaust Manifold Hardware Kit and Street Series Cat-Back Performance Exhaust System start at just $29.99 and offer a great balance of form and function.
Explore Related Parts
While you’re upgrading or replacing your Exhaust System Kit, don’t forget to check out other key components like Catalytic Converters and Exhaust Mufflers. At Advance Auto Parts, we’re here to help you keep your 2018 Kia Optima in peak condition, inside and out.
Find Your Specific 2018 Kia Optima Exhaust System Kits
Looking for the perfect Exhaust System Kit for your 2018 Kia Optima? You’re in the right place. Below, you’ll find links to various types of Exhaust System Kits that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Exhaust System Kits, ensuring durability and a precise fit for your Kia Optima. Whether you’re driving a 2018 model or another popular model year like
2011,
2012,
2013,
2014,
2015,
2016,
2017,
2019, and
2020, we’ve got you covered. Purchasing Exhaust System Kits from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Exhaust System Kits that fit your vehicle.
Essential 2018 Kia Optima Exhaust System Kits
Dorman – Help – Exhaust Manifold Hardware Kit (Part No.03415B)
from
$29.99
This exhaust manifold hardware kit matches the original hardware required to secure the exhaust manifold to the engine on specified vehicles, and is made from quality materials for reliable performance.
Product Features:
See More
Product Features:
- Direct replacement – this exhaust manifold hardware kit matches the original hardware required to secure the exhaust manifold to the engine on specified vehicles
- Ideal solution – this kit is a reliable replacement for the original hardware that is missing or damaged, or has failed
- Durable construction – this kit is made from quality components to ensure reliable performance and a long service life
- Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
MagnaFlow – Street Series Cat-Back Performance Exhaust System (Part No.19237)
from
$1250.00
The MagnaFlow 2011-2015 Kia Optima Street Series Cat-Back Performance Exhaust System brings out the personality of your 2.0L, 2.4L 2011-2015 Kia Optima with our signature resonant, powerful engine tone and dyno-proven performance. Thanks to its fast-flowing, mandrel bent 2.5in. main piping and 2 Straight-Through mufflers ending in a Quad Split Rear exit with 3.5in. Polished Welded-On Double Wall Angle Cut Folded Edge tips, this Kia Optima exhaust kit has the performance chops to match its sporty sound and appearance. Upgrade your ride to the next level with an exhaust that has the pipes to put other Kia Optima’s to shame. With this system your vehicle will be producing Moderate exterior and Mild interior sound levels while leaving other cars and trucks feeling envious at every stoplight. Exhaust kit 19237 features a cat-back layout that replaces your ride’s stock exhaust components from near the catalytic converter on back. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 19237 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s limited finish warranty and limited construction warranty.
Product Features:
See More
Product Features:
- Durable corrosion-resistant stainless steel construction
- CNC precision robotic manufacturing techniques
- Dyno-proven performance
MagnaFlow – Street Series Cat-Back Performance Exhaust System (Part No.19457)
from
$1295.99
The MagnaFlow Street Series Cat-Back Performance Exhaust System 19457 brings out the personality of your Car with our signature resonant, powerful engine tone and dyno-proven performance. Thanks to its fast-flowing, mandrel bent 2.5in. main piping and 3 Straight-Through mufflers ending in a Quad Split Rear exit with 4in. Polished Welded-On Double Wall Angle Cut Folded Edge tips, this Car exhaust kit has the performance chops to match its sporty sound and appearance. Upgrade your ride to the next level with an exhaust that has the pipes to put other Car’s to shame. With this system your vehicle will be producing Moderate exterior and Mild interior sound levels while leaving other cars and trucks feeling envious at every stoplight. Exhaust kit 19457 features a cat-back layout that replaces your ride’s stock exhaust components from near the catalytic converter on back. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 19457 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s limited finish warranty and limited construction warranty.
Product Features:
See More
Product Features:
- Durable corrosion-resistant stainless steel construction
- CNC precision robotic manufacturing techniques
- Dyno-proven performance
Popular 2018 Kia Optima Exhaust System Kits Categories
Most Popular Exhaust Manifold Hardware Kit for 2018 Kia Optimas
Enhance your 2018 Kia Optima with this popular Exhaust Manifold Hardware Kit we have in stock, for $29.99.
Dorman – Help – Exhaust Manifold Hardware Kit (Part No.03415B)
from
$29.99
This exhaust manifold hardware kit matches the original hardware required to secure the exhaust manifold to the engine on specified vehicles, and is made from quality materials for reliable performance.
Product Features:
See More
Product Features:
- Direct replacement – this exhaust manifold hardware kit matches the original hardware required to secure the exhaust manifold to the engine on specified vehicles
- Ideal solution – this kit is a reliable replacement for the original hardware that is missing or damaged, or has failed
- Durable construction – this kit is made from quality components to ensure reliable performance and a long service life
- Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
Best-Selling 2018 Kia Optima Exhaust System Kit
Upgrade your Optima with our best-selling Exhaust System Kit.
MagnaFlow – Street Series Cat-Back Performance Exhaust System (Part No.19457)
from
$1295.99
The MagnaFlow Street Series Cat-Back Performance Exhaust System 19457 brings out the personality of your Car with our signature resonant, powerful engine tone and dyno-proven performance. Thanks to its fast-flowing, mandrel bent 2.5in. main piping and 3 Straight-Through mufflers ending in a Quad Split Rear exit with 4in. Polished Welded-On Double Wall Angle Cut Folded Edge tips, this Car exhaust kit has the performance chops to match its sporty sound and appearance. Upgrade your ride to the next level with an exhaust that has the pipes to put other Car’s to shame. With this system your vehicle will be producing Moderate exterior and Mild interior sound levels while leaving other cars and trucks feeling envious at every stoplight. Exhaust kit 19457 features a cat-back layout that replaces your ride’s stock exhaust components from near the catalytic converter on back. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 19457 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s limited finish warranty and limited construction warranty.
Product Features:
See More
Product Features:
- Durable corrosion-resistant stainless steel construction
- CNC precision robotic manufacturing techniques
- Dyno-proven performance
FAQs for 2018 Kia Optima Exhaust System Kits
What are the best-selling Exhaust System Kits for 2018 Kia Optimas?
Out of 2 Exhaust System Kits that fit 2018 Kia Optimas, the following parts are the top sellers:
- Exhaust Manifold Hardware Kit (10242455) – $29.99
- Street Series Cat-Back Performance Exhaust System (12540948) – $1,295.99
What’s the price range for 2018 Kia Optima Exhaust System Kits?
The prices of Exhaust System Kits for the 2018 Kia Optima range from $29.99 up to $1,295.99 for the most premium parts.
What is the average price of an Exhaust System Kit for a 2018 Kia Optima?
The average price for Exhaust System Kits for the 2018 Kia Optima is $662.99. Keep in mind the variety of part types within our Exhaust System Kit category, where you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Exhaust System Kits for other Kia Optima model years?
What are the cheapest Exhaust System Kits for my 2018 Kia Optima?
The cheapest 2018 Kia Optima Exhaust System Kits we carry are:
- Exhaust Manifold Hardware Kit (10242455) – $29.99
- Street Series Cat-Back Performance Exhaust System (12540948) – $1,295.99
Does Advance Auto Parts sell Exhaust System Kits for any other 2018 Kia models?
Yes. We stock Exhaust System Kits for 2 other popular 2018 Kia models. Some of the most popular are 2018 Rio Exhaust System Kits, 2018 Soul Exhaust System Kits, and 2018 Niro Exhaust System Kits.
What types of Exhaust System Kits do you sell for my 2018 Kia Optima?
As of 11/2/25, these are some of the most in-demand types of Exhaust System Kits for a 2018 Kia Optima:
Can I get help with 2018 Kia Optima Exhaust System Kit orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Kia Exhaust System Kits and more.
What is your return policy for Kia Optima Exhaust System Kits?
Advance Auto Parts keeps returns simple. For new Kia Optima Exhaust System Kits and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.