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Upgrading the AA downpipe on your BMW B58 engine can be a game-changer for performance enthusiasts.
The B58 engine is a turbocharged inline-6 that produces a significant amount of heat, which is why a high-performance downpipe is essential.
The stock downpipe is designed for efficiency, not performance, and can become a bottleneck for exhaust gases.
A well-designed AA downpipe upgrade can increase horsepower and torque, while also reducing backpressure and improving throttle response.
By upgrading to an AA downpipe, you can expect to see gains of up to 15 horsepower and 10 lb-ft of torque, depending on the specific upgrade.
Broaden your view: Aa Catted Downpipe
Description
The B58 Catless Downpipe is a game-changer for BMW enthusiasts, offering superior performance and longevity.
Its durable construction ensures optimal power and torque gains for your BMW, making it a must-have for anyone looking to upgrade their driving experience.
Improving throttle response is just one of the benefits of installing a B58 Catless Downpipe, allowing you to feel more connected to your vehicle.
Made from 304 stainless steel, this downpipe is built to last, withstanding the rigors of regular driving.
Fits The Stock Catback as well as all Aftermarket Catbacks, giving you the flexibility to customize your exhaust system to your liking.
Here are some key features to consider:
- B58 Catless Downpipe
- Fits: B58 M240i 340i 440i 540i 740i 2016+
- Tuning available (contact the manufacturer for more information)
Shipping quotes outside the US should be obtained by emailing the manufacturer directly.
Benefits and Upgrades
The Active Autowerke B58 Signature Downpipe is a game-changer for your car's performance. It's designed to minimize back pressure and allow the turbo to spool up quicker.
By using a 4.5 diameter pipe with the least number of bends possible, the downpipe helps the turbo spool up as quickly as possible. This results in quicker and more efficient spool.
The engineers at Active Autowerke aimed to create a product that's both affordable and reliable, making it perfect for daily driving. They successfully achieved this goal with their B58 downpipe.
The downpipe is constructed from 304 stainless steel with a 1.5MM wall thickness, ensuring it's robust and durable. This construction also guarantees a long lifespan and trouble-free installation.
The use of a GESI super high output catalytic converter in the signature downpipe helps maintain air control standards without significant losses in power. This means you can enjoy improved performance without compromising on emissions.
Components
The AA downpipe is a crucial component of your car's exhaust system. It connects the catalytic converter to the muffler.
A typical AA downpipe is made of stainless steel or high-grade steel, which provides durability and resistance to corrosion. This material choice is essential for withstanding the high temperatures and harsh conditions inside the exhaust system.
The AA downpipe is usually around 12-18 inches long, depending on the make and model of your car. This length is carefully designed to optimize exhaust flow and reduce backpressure.
A well-designed AA downpipe can increase your car's horsepower and torque by up to 10%. This is achieved by reducing the restriction in the exhaust system, allowing the engine to breathe more freely.
The AA downpipe is typically bolted to the catalytic converter using a flange or clamp. This secure connection ensures that the downpipe remains in place, even under high-performance driving conditions.
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Exhaust Systems
An exhaust system is essentially a network of pipes and components that work together to redirect exhaust gases away from the engine and out of the vehicle.
For another approach, see: Downpipe Exhaust System
The main components of an exhaust system include the downpipe, catalytic converter, muffler, and exhaust tip.
A downpipe, specifically, is a crucial part of the exhaust system, responsible for carrying exhaust gases from the engine to the catalytic converter.
The downpipe is usually made of stainless steel or high-performance alloys for durability and resistance to corrosion.
In the case of a high-performance downpipe, it can be designed with features like reduced backpressure and increased flow rates to enhance engine performance.
A high-performance downpipe can also be equipped with features like a free-flow design and a high-flow catalyst to optimize engine performance.
Performance
A larger down pipe can relieve some of the exhaust back pressure, resulting in quicker and more efficient turbo spool. This is because the speed of a turbo's impeller wheel is limited by exhaust back pressure.
The Active Autowerke B58 Signature Downpipe has a 4.5 diameter pipe that uses the least number of bends possible, allowing for a large volume that helps the turbo spool quickly by eliminating back pressure during spool up.
The down pipe is constructed entirely from 304 stainless steel with 1.5MM wall thickness, making it robust and durable.
Mad Performance 4.5 B58
The Mad Performance 4.5 B58 is a game-changer for your B58-equipped BMW.
This downpipe is designed to reduce restriction and speed up turbo spool, giving you a noticeable boost in performance.
By installing the Mad Performance 4.5 B58, you can unlock the true potential of your vehicle and experience improved sound.
You can earn 5% back in ECS Rewards on orders placed between November 18th and December 3rd, redeemable between December 4th and December 31st.
More About Performance
A larger down pipe can relieve some of the exhaust back pressure, resulting in quicker and more efficient turbo spool.
The speed of a turbo's impeller wheel is limited by exhaust back pressure, so minimizing it is key to unlocking performance gains.
Active Autowerke's B58 Signature Downpipe is designed to minimize back pressure while retaining daily drive-ability, making it a great option for owners who want a reliable and easy-to-install upgrade.
The downpipe is constructed from 304 stainless steel with 1.5MM wall thickness, ensuring it's robust and durable.
ECS Tuning is not affiliated with any automobile manufacturers, and manufacturer names and/or part numbers are used only for identification purposes.
A larger down pipe, like the one used in the Active Autowerke B58 Signature Downpipe, can help the turbo spool as quickly as possible by eliminating back pressure during spool up.
The Active Autowerke B58 Signature Downpipe uses a 4.5 diameter pipe with the least number of bends possible, which helps to reduce back pressure and improve performance.
Frequently Asked Questions
How much HP does a downpipe add?
A high-performance downpipe can add 10-20 horsepower on average, making it a noticeable gain once the turbo spools. This upgrade is a great way to squeeze more power out of your engine.
Is a downpipe illegal?
No, a downpipe itself is not inherently illegal. However, operating a vehicle with a 'catless downpipe' is prohibited in certain states
What will a downpipe do to my car?
A high-performance downpipe can increase horsepower by reducing exhaust backpressure, allowing your engine to breathe more freely. This upgrade can also lead to a smoother and more efficient engine operation.
Sources
- https://aaconceptsco.com/products/b58-catless-downpipe
- https://store.activeautowerke.com/products/copy-of-active-autowerke-bmw-b58-f3x-m240i-340i-440i-catted-downpipe
- https://www.ecstuning.com/b-active-autowerke-parts/active-autowerke-catted-race-downpipe-b58/11-062~aaw/
- https://www.ecstuning.com/BMW-G20-M340i_xDrive-B58_3.0L/Exhaust/Performance/Downpipe/
- https://autotalent.com/products/active-autowerke-b58-catted-downpipe-bmw-f3x-m240i-340i-440i
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