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254.99
Part #: MBGMCA427
MBRP GMCA427 3" Turbo Downpipe
★★★★★
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Description
The MBRP GMCA427 3" Turbo Downpipe eliminates the restrictive factory downpipe in your 2011-2015 GM 6.6L Duramax LML. Featuring a mandrel bent aluminized steel construction, the MBRP 3" Turbo Downpipe provides a smoother flow from the turbo resulting in lower EGT's, increased performance, throatier sound, and faster turbo spool-up.
Each Downpipe is coated with a satin black high-heat coating and wrapped with a high-heat thermal wrap for added protection. Featuring CNC machined flanges, this Downpipe is a direct bolt-on replacement, and is manufactured with precision bends for the perfect fit that you've come to expect from MBRP.
Features:
- CARB EO# D-763-2
- Reduced Temperatures
- Increased Performance
- Coated & Heat-Wrapped
- Aluminized Steel Construction
Note: This Downpipe is only for the 2011-2015 models with the standard v-band connection. It will not work on late model 2015.5 trucks with the 3-bolt flange.
Specifications
- MPN GMCA427
- SKU MBGMCA427
- GTIN 882963122704
- ID 31292
- Manufacturer Name MBRP Inc.
- Shipping Weight 7.00 lb.
- Shipping Length 23 in.
- Shipping Width 8 in.
- Shipping Height 14 in.
- Fuel Type Diesel
- E-Code 2
- EO Number d-763-2
-
Prop 65
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
- Internal L13R0
Frequently Bought Together
In-Stock
GM 97354769 Turbo To Downpipe Clamp
$48.48
Vehicle Fitment:
2004.5-2016 GM 6.6L Duramax LLY/LBZ/LMM/LML
2004.5-2016 GM 6.6L Duramax LLY/LBZ/LMM/LML
Reviews
★★★★★
5.0/5 Stars out of 3 Reviews
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Will H (Belgrade, MT) | April 28th, 2023
Nice replacement for OEM downpipe. Fitment was perfect. Includes plugs for all 3 bungs in case you need them. Would highly recommend!
Bob (Aurora, CO) | February 17th, 2023
Factory downpipe is quite squished. I have a 2014 GMC and was able to get this done in 4 hours with the heat shield still on the stocker. Didn’t have to remove any of the exhaust either so that was a plus. No gauges and all emissions still intact so don’t know if there will be any egt changes but it’s gotta help a little when towing…maybe….. No regurts here regardless. :)
Dla (Va) | August 29th, 2022
Fitment was better than oem. Got rid of the stock restrictive Downpipe. Sounds great and flows like it should.
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