If youÕre the proud owner of a Mercedes AMG GT63, chances are youÕre not content with just Òfast enough.Ó This car is already a beast from the factory, but for true enthusiasts, thereÕs always room for more performance, more sound, and more personality. One of the most impactful upgrades you can make? A Mercedes AMG GT63 downpipe install.
LetÕs break down what a downpipe is, why it matters, and how upgrading yours can take your GT63 from impressive to unforgettable.
WhatÕs a Downpipe and Why Upgrade It?
Your carÕs downpipe connects the turbocharger to the rest of the exhaust system. In the stock setup, the downpipe includes catalytic converters designed to keep emissions low. While these are important for environmental compliance, they can also restrict exhaust flow Ñ especially in a high-performance engine like the AMG 4.0-liter twin-turbo V8.
By installing a high-flow or catless downpipe, you:
- Reduce exhaust backpressure
- Improve turbo efficiency
- Increase horsepower and torque
- Get a throatier, more aggressive exhaust note
In short, a mercedes amg gt63 downpipe install is about unlocking the carÕs true breathing potential.
Performance Gains You Can Expect
ItÕs not just about sound Ñ a downpipe upgrade can deliver real performance benefits. Depending on the design (high-flow catted vs. catless) and whether you pair it with a tune, you might see:
- 30Ð70 horsepower gains
- Faster turbo spool times
- Better throttle response
If you pair the new downpipe with ECU tuning, the AMG GT63 can reach truly staggering numbers, often breaking the 700 horsepower mark without touching internal engine components.
That Sound ThoughÉ
LetÕs be honest Ñ one of the biggest motivators for a Mercedes AMG GT63 downpipe install is the sound. With less restriction in the exhaust system, the carÕs deep V8 growl becomes more pronounced. Cold starts sound more menacing, acceleration brings out richer turbo whistle, and pops & crackles on overrun become more dramatic.
ItÕs not just noise Ñ itÕs personality. Your car will sound like it means business.
Catted vs. Catless: Which Should You Choose?
When considering your downpipe upgrade, youÕll need to choose between a high-flow catted or catless design:
- High-Flow Catted Downpipe: Keeps a catalytic converter in place, but with less restriction than stock. More eco-friendly, less likely to trigger a check engine light, and still delivers big performance gains.
- Catless Downpipe: No catalytic converter. Maximum airflow, maximum sound, and the largest performance jump Ñ but comes with increased emissions, potential for a stronger exhaust smell, and higher likelihood of needing a tune to avoid error codes.
The Installation Process
A Mercedes AMG GT63 downpipe install isnÕt your typical Saturday afternoon DIY job unless you have professional tools, a lift, and solid mechanical experience. The job involves:
- Removing the factory underbody panels
- Disconnecting sensors and heat shields
- Unbolting the stock downpipe from the turbo and exhaust system
- Fitting the new downpipe and reconnecting all components
While itÕs doable for experienced mechanics, most owners choose to have the work done by a performance shop. Professional installation ensures proper fitment, avoids exhaust leaks, and keeps your sensors functioning correctly.
Things to Keep in Mind
Before you dive into a Mercedes AMG GT63 downpipe install, consider:
- Warranty: Modifying the exhaust system can affect your factory warranty, especially for related components.
- Emissions Laws: Some regions have strict emissions regulations Ñ always check your local laws.
- Tuning: While some high-flow catted options work without tuning, youÕll get the best performance and avoid check engine lights with a proper ECU remap.
The End Result
Once your Mercedes AMG GT63 downpipe install is complete, youÕll notice the difference immediately. Acceleration feels stronger, the sound is intoxicating, and the car just feels more alive. Pairing this mod with a tune and other supporting upgrades can take your GT63 into supercar territory Ñ without sacrificing daily drivability.
If your goal is to make your AMG stand out both on the street and at the track, a downpipe upgrade is one of the best bangs for your buck.
Final Thoughts
The Mercedes AMG GT63 is already a masterpiece of engineering, but performance enthusiasts know thereÕs always another level to reach. A well-chosen downpipe unlocks more power, unleashes a ferocious soundtrack, and turns every drive into an event. Just make sure to work with reputable parts suppliers and skilled installers to get the most out of your upgrade.
