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Mercedes-AMG GT63 Downpipes by RedStar, Race version for the C192 platform

Mercedes-AMG GT63 Downpipes by RedStar, Race version for the C192 platform

RedStar Exhaust Performance Downpipes for C192 Mercedes-AMG GT63

Price range: $1,965.00 through $4,700.00

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Mercedes-AMG GT63 Downpipes for the 2024+ C192 (M177 4.0L bi-turbo) hand-built by RedStar Exhaust. Three versions available: Race, GESI GEN2 400cpsi catted, or HJS HD 200cpsi catted. Optional ceramic-lined heat shielding and OPF section available as build add-ons. 304 stainless, TIG welded, limited lifetime warranty.

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SKU: N/A Categories: Exhaust, Downpipes Vehicle: MERCEDES-BENZ, Mercedes-AMG GT 63, Brand: RedStar Exhaust

This item and any similar items are not CARB approved and therefore not for sale in the state of California or other states that require CARB certification. No assessment is being made regarding this product's compliance with the EPA's anti tampering policy, only that the necessary testing and validation has not been completed. Please check with your local enforcement officials regarding legality of use in your place of residence.

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Description

RedStar Exhaust Performance Downpipes for C192 Mercedes-AMG GT63

REDSTAR EXHAUST Mercedes-AMG GT63 Downpipes are precision-engineered for the C192 platform to slash exhaust restriction and unleash the full character of your twin-turbo 4.0L M177 V8. Hand-built and TIG-welded from 2.0mm wall 304 stainless, they wake up turbo spool, sharpen throttle response, and uncork a raw, race-bred AMG soundtrack pulsing with burbles and crackles. Beyond the soundtrack, the freer-flowing design extends turbo lifespan, lowers under-hood temperatures, and delivers measurable mid-range and top-end power gains. 100% bolt-on, OEM-spec fitment. Built once, built right.

Features

Significant power gain and faster turbo spool-up
Improved throttle response with reduced exhaust backpressure
Adds an aggressive AMG V8 tone with deeper burbles and crackles
Extends turbo lifespan by reducing exhaust restriction
Reduces under-hood temperature
100% bolt-on installation with OEM-spec flanges and brackets
Hand-built using 2.0mm wall 304 stainless steel
100% TIG welded and back-purged
LHD and RHD compliant
Backed by RedStar Exhaust limited lifetime warranty

Mercedes-AMG GT63 Downpipes Specifications

Material: 304 stainless steel, 2.0mm wall
Construction: TIG welded, back-purged
Flanges: OEM-spec
Version options:
- Race – Not Road Legal (off-road / motorsport use only)
- GESI GEN2 UHO+ 400cpsi 5″ (1000hp rated, EPA-compliant outside California)
- HJS HD 200cpsi 130mm (German-made, Euro 6 compliant, flow near-straight-pipe)
Additional build add-ons (contact us before checkout):
- OE-style ceramic-lined heat shielding (reduces radiant heat 70 to 80%)
- OPF section for vehicles equipped with a particulate filter

Applications

Mercedes-AMG GT63: C192 | 2024 to present (M177 4.0L bi-turbo)
Mercedes-AMG GT63 Pro: C192 | 2025 to present (M177 4.0L bi-turbo)

Notes

VIN required at checkout. We need your VIN so we can verify the correct configuration for your build.
Off-road / motorsport use only. These Mercedes-AMG GT63 Downpipes are not designed to meet emissions or noise standards and are not for street or highway use. They are not certified for use on emissions-controlled vehicles in any jurisdiction.
Build add-ons. Heat shielding and OPF section add-ons are configured per order and carry an upcharge. Contact us before checkout to confirm your build sheet and final pricing.

Frequently Asked Questions

Will I get a check engine light with the Race version? Without proper tuning, yes. A high-flow catted version (GESI 400cpsi or HJS 200cpsi) paired with an appropriate tune will dramatically reduce the likelihood of a CEL, but no aftermarket downpipe can guarantee a CEL-free outcome.
Is tuning required? While it may not be necessary to tune the vehicle for catted applications, it is a good idea to always tune your vehicle when a significant modification to the exhaust (such as downpipes) is performed to ensure optimum power gains and drivability.
How much power will I gain? Power gains depend on version choice, tune, and supporting modifications. The Race version paired with a custom tune typically shows meaningful mid-range torque and top-end gains. Catted versions trade a small amount of peak gain for street-legal compliance where applicable.
What is the difference between GESI GEN2 400cpsi and HJS HD 200cpsi? GESI GEN2 is a 400cpsi catalyst rated for 1000hp and EPA-compliant outside California. HJS HD 200cpsi is German-made with lower cell density, flow numbers very close to straight pipe, and Euro 6 compliance. Choose GESI for US street legality outside California; choose HJS for the closest-to-Race flow with the catalyst still present.
Do I need the OPF add-on? OPF (Otto Particle Filter) status varies by vehicle and market. Contact us before checkout with your VIN and we will confirm whether the OPF section applies to your specific build.
What is the heat shielding? RedStar’s signature OE-style heat shield uses a ceramic inner liner inside an embossed foil wrap. It reduces radiant heat from the exhaust pipes by 70 to 80%, much more effective than a basic thermal wrap or ceramic coating.
What is the lead time? RedStar products are hand-built per order. Contact us for current lead time after we receive your build sheet.
Is this legal for street use? No. RedStar sells this product for off-road / motorsport / closed-course use only across all versions.

About RedStar Exhaust

RedStar Exhaust has specialized in the design and fabrication of ultra-high-performance downpipes and exhaust systems for European and exotic vehicles since 2011. Every system is manufactured in their state-of-the-art facility, combining traditional craftsmanship with CNC machining, 3D printing, and precision TIG welding. RedStar’s engineering-first approach prioritizes flow efficiency, thermal control, and precise fitment, with sound and appearance the result of deliberate engineering choices. As a US veteran-owned company, RedStar hand-builds every product using only the highest-grade materials and backs every system with a limited lifetime warranty.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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