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Flo-Pro 4" Down-Pipe Back Exhaust, Chevy/GMC (2015.5+) 2500-3500, 6.6L Duramax LML (with 3 Bolt Flange Down-Pipe) DPF Race Kit, Single, Aluminized, No Muffler

4" Aluminized Downpipe Back Exhaust without muffler. Race applications only, for vehicles that are not and will not be registered for highway use.

* IMPORTANT NOTE: These kits will only fit models equipped with the OEM style 3-bolt flange off the turbo direct pipe! If you do not have a 3-bolt flange, please see our 2011-2015 Duramax Exhaust Kits.

***Requires use of a competition race tuner.
Shipping: This product can not be shipped to CA, CO or AZ.
Was: $407.15
Sale: $370.13
Save: 9%
Save: $37.02

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Not legal for sale or use on pollution-controlled motor vehicles anywhere in the United States. Legal ONLY for off-road competition racing vehicles and cannot be used on vehicles that are operated on public streets, roads or highways.

1) This product may NEVER be installed on a vehicle registered for highway or public street use.
2) By installing this product onto your vehicle, you assume all risk and liability associated with its use.
3) It is your responsibility to make sure your vehicle complies with all federal, state, and local emissions laws. Federal and many state and local laws prohibit the removal, modification or rendering inoperative of any part of the design affecting emissions or safety on motor vehicles used on a public street or highway. Violation may result in a fine of up to $32,500 per vehicle (or possibly higher depending on changes in the law). All civil penalties and fines for removing your vehicle’s emissions equipment are the sole responsibility of the end user.
4) Due to its high performance nature, this product may void vehicle manufacturer’s warranty.
5) Sinister Mfg Company, Inc. is not responsible for misuse of its products. By installing this product, you release Sinister Mfg Company, Inc. of any and all liability associated with its use.
6) No other applications besides off-road competition racing use are intended or implied. Depending on where you live, additional restrictions may apply. Check all applicable laws before installing or using!


Shipping Information

  • Item Requires Shipping
  • 45.0 lbs.
  • W18.0000” x H16.0000” x L42.0000”
  • Free Shipping!
  • This product can not be shipped to CA, CO or AZ.

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