Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
⚠️ California Proposition 65 Warning : Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
Unlock maximum performance from your 4.0L Twin‑Turbo AMG platform with theSTRATEC Custom High‑Flow Catted Downpipe & Header System, available in100‑cell, 200‑cell, or 300‑cell catalytic configurationsto match your performance goals.
Engineered for the M177 / M178 4.0TT V8 found in the E63, E63S, AMG GT, and GT‑C models, this system replaces restrictive factory exhaust sections to dramatically improve exhaust flow, turbo efficiency, and throttle response. The optimized header and downpipe design enhances exhaust scavenging, helping deliver stronger mid‑range torque and improved top‑end power.
Precision fabricated from high‑grade stainless steel with mandrel‑bent tubing and TIG‑welded construction, the STRATEC system is built for durability under extreme heat and performance driving conditions.
Catalyst Options
100‑Cell (Race‑Focused)
Maximum exhaust flow
Fastest turbo spool
Loudest, most aggressive exhaust tone
Intended for high‑performance builds
200‑Cell (Performance Street Setup)
Significant flow improvement over stock
Aggressive tone with balanced drivability
Ideal for tuned street applications
300‑Cell (Refined Performance Upgrade)
Improved flow while maintaining smoother tone
Best suited for daily‑driven performance vehicles
More refined sound profile
Performance Benefits
Reduced backpressure for improved turbo efficiency
Yes, we offer free standard shipping on all orders within the United States.
When will I receive my item?
Domestic orders typically arrive within 3-5 business days. Delivery times are estimated and may vary depending on your location, weather conditions, or other unforeseen factors.
Can I change or return my item?
We hope you love your purchase, but if you need to make a change or return your item, we’ve got you covered! You can initiate a return or exchange within 30 days of receiving your order. Please ensure the product is in its original condition and packaging. For more information on our return policy, please visit our Returns & Exchanges page.