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USD 79.95
Part #: XD342

XDP Driver Side High-Flow Exhaust Manifold XD342

2001-2016 GM 6.6L Duramax
Part #: XD342
★★★★★ ★★★★★ 2 Reviews
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Replace the exhaust manifold in your 2001-2016 GM 6.6L Duramax with the XDP Driver Side High-Flow Exhaust Manifold XD342. The XD342 has an unrestricted high-flow design that eliminates the "dented" or "kinked" driver side exhaust manifold that comes factory equipped on the 2001-2010 GM 6.6L Duramax powered trucks. On the 2011-2016 LML models this manifold is a direct-replacement for the LML trucks as they already come with the high-flow style exhaust manifold. Each manifold features a durable cast construction and includes the gaskets and hardware needed for installation.

  • Direct Replacement
  • Eliminates "Kinked" Manifold (2001-2010 Trucks)
  • GM OE Cross Reference #: 12624684,12637647,97224587
Application Notes:
High-flow upgrade is only on 2001-2010 trucks. 
Some factory hardware and fasteners will be re-used during installation. 
This is a factory-style replacement on the 2011-2016 GM 6.6L Duramax LML.

Warranty Info:
Products manufactured by XDP carry a 1-Year warranty against defects in materials and craftsmanship. The Warranty is Limited to one (1) year from the date of sale and limited solely to the parts contained within the product's kit. Click Here for full warranty policy.


  • MFG. Number XD342
  • Manufacturer Name XDP
  • Shipping Weight 12.00 lb.
  • Shipping Length 20 in.
  • Shipping Width 9 in.
  • Shipping Height 6 in.
  • Fuel Type Diesel
  • UPC 856217008816
  • Warranty Yes
  • Warranty Info 1 Year / Unlimited Mileage
  • Prop 65 WARNING: Cancer & Reproductive Harm -


★★★★★ ★★★★★
4.0/5 Stars out of 2 Reviews
Solid buy
(Pnw) | October 1st, 2020
Nice piece, perfect fit. Obviously no heat shield at this price. Knocked a star because the casting wasnt cleaned up on the inside. 15 minutes with the dremel cleaned it up real nice.
Verified Buyer
(Ruffsdale, Pa.) | April 29th, 2020
The holes on the bottom that the bolts use to mount to the head had thicker material and the coolant tube that runs under the driver side manifold was hitting it. I just had to use a grinder and remove the excess. Better than the factory though.

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Questions and Answers

Ask XDP a Question about this product (Allow 24-48 hours for reply)

Most Popular Questions

Is this pre-tapped for an EGT probe?
View Staff Answer 
Our XDP Driver Side High-Flow Exhaust Manifold XD342 is not pre-tapped for an aftermarket EGT probe.


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