PPE 117000700 3" Stainless Steel Downpipe

PART# 117000700 | SKU PPE117000700
★★★★★ ★★★★★ 4.2 (8 Reviews)

Vehicle Fitment For:
2015.5-2016 GM 6.6L Duramax LML

See full application list below
$161.99

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Description

The PPE 117000700 3" Stainless Steel Downpipe for your 2015.5-2016 GM 6.6L Duramax LML allows you to remove your crushed oval stock downpipe and replace it with a smooth round, long lasting 304 stainless steel down pipe. Includes a woven titanium sleeve to reduce engine bay temperatures.


Features: 
  • 3" Mandrel-Bent
  • M20-1.5 & M14-1.5 Sensor Port
  • 304 Stainless Steel Construction
  • Woven Titanium Sleeve For Heat Control
  • CARB EO# D-701-30
Note: 
This downpipe is for 2015.5+ models with the 3-bolt triangular flange.
For early model 2015 trucks with a V-band style clamp see part number 117000600

Reviews For PPE 117000700

Overall Rating
4.2/5
8 Reviews
Rating Snapshot
Currently Viewing Reviews with a rating of 5. Click here to reset.
Verified Buyer
★★★★★ ★★★★★
Well made down pipe.
Steve (Tafton PA) | October 31st, 2025
This is a nice complement to my trucks performance. I recommend this for anyone who tows or is just looking to make your truck run better.
Verified Buyer
★★★★★ ★★★★★
Down pipe
Yellow boy (Avondale LA) | August 2nd, 2024
I had no problem at all. It was a perfect fit well deserved tumbs up for my 2015 GMC Denali Duramax 2500.
Verified Buyer
★★★★★ ★★★★★
PPE 3" Down Pipe 2015.5 duramax 3500
JOHN (Alaska) | August 28th, 2023
Fit and finish was top notch. Install wasn't bad at all. Went right in through the passenger wheel well opening. All I had to do was move the DEF fill lines out of the way and it slid right in.
Verified Buyer
★★★★★ ★★★★★
Did exactly what it needed
Mike (Michigan) | May 26th, 2023
Easy to get in and out. Bolted right up with zero issues in my 2015.5 Duramax.
Verified Buyer
★★★★★ ★★★★★
Downpipe
Chris (Las Vegas) | March 12th, 2023
Exactly as described. Fit my 2015 Chevy Silverado 3500. Well made perfect fit.
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Frequently Asked Questions

Does this pipe have the three holes in it; two at the top one in the bottom for the three different sensors?
Yes, the PPE 117000700 3" Stainless Steel Downpipe has bungs for all 3 sensors.
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Specifications For PPE 117000700

MPN 117000700
SKU PPE117000700
GTIN 811070021792
ID 32428
Manufacturer Name PPE
Shipping Weight 8.00 lb.
Shipping Length 21 in.
Shipping Width 10 in.
Shipping Height 5 in.
Fuel Type Diesel
E-Code 2
EO Number d-701-30
Prop 65 Prop 65 WarningWARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
Internal L33R32

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