Mercedes GL450 M278 V8 Downpipes

New product

REDSTAR EXHAUST GL450 Performance Downpipes is the best way to get that noted V8 exhaust tone with burbles & crackles from your M278 4.7L biturbo AMG engine. 

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$1,299.00

  • Competition (Catless)
  • HJS HD Euro6 200cpsi 108mm
  • HJS HD Euro4 200cpsi 121mm
  • HJS HD Euro5 200cpsi 121mm
  • HJS HD Euro6 200cpsi 121mm
  • GESI GEN1 UHO 300cpsi 4.5”
  • GESI GEN2 UHO+ 400cpsi 5”
  • No Heat Shield
  • Include Heat Shield

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Data sheet

Engine Type4.7L Bi-Turbo

More info

Compatible Vehicles:

  • 2012-2015 Mercedes GL450 X166 M278 4.7L 

Available Options:

  • GESI UHO 300cpsi- high-flow Metal Core Catalytic Converters. Rated 500-850hp. EPA certified for use on OBD2 vehicles (1996 and newer) 49 States. >> Read more about G-Sport by GESI cats.
  • HJS HD 200cpsi- Ultra High-Performance 1000+hp rated catalytic converters. Made in Germany most reputed converters for their outstanding characteristics, quality and durability. >> Read more about HJS cats.  
  • GESI GEN2 400cpsi- catalytic converters rated for 1000hp. The new GEN2 series provides a significant improvement in exhaust flow over stock and offers the latest emissions technology. EPA Compliant catalytic converters have been third-party lab tested to meet or exceed local emissions standards in North America (excluding California) >> Read more about G-Sport by GESI cats.
  • Double-layer heat shielding- is used to protect surrounding parts, wires, and hoses against radiant heat from the downpipes. Integrated thermal insulation reduces surface temperature up to 70%! What makes it an absolute winner, compared to usual thermal wrapping or ceramic coatings. It’s very important not just for safety reasons but also affects engine performance by reducing the underhood temperature. We highly recommend this option, especially for catted downpipes.

Main Features:

  • significant power gain
  • faster spool up and better throttle response
  • increasing the life of the turbos 
  • reducing under hood temperature
  • adds a very nice tone to the exhaust
  • 100% bolt-on installation
  • 100% TIG welded and back purged
  • highest quality 2.0mm wall 304 stainless steel
  • OEM-spec 304 stainless steell flanges
  • all brackets and mounts as on OEM unit
  • Limited lifetime warranty 

Shipping:

We offer WORLDWIDE shipping via DHL Express. It usually takes 6-12 days to any destination. Once you create your account your order will update with the appropriate shipping cost. Please, ask for details and availability.

Notes:

OFF ROAD/MOTORSPORT USE ONLY! 
This product is not designed to meet any emissions standards and is not for street or highway use. This product is not certified and may not be legal for use on emissions controlled vehicles in any country/jurisdiction.