Shop By Truck

Service Department

SD-INTEL-LLY Sinister Diesel Intake Elbow - GMC 2004.5-2005

Manufacturer: Sinister Diesel
The Sinister Diesel intake elbow for the 2004.5-2005 GMC/Chevy 6.6L Duramax LLY replaces the restrictive stock piping with larger diameter CNC mandrel bent aluminum tubing, increasing performance and turbo spooling while allowing higher boost levels. Race tuning required.

PRODUCT DETAILS (click to expand)

Mftr. Part# SD-INTEL-LLY
UPC 841788100632
Weight (lbs.): 1.88 lbs.
Dimensions: 6.75" x 14.25" x 9.38"

PRODUCT SPECS (click to expand)

Product Type Intake Manifold/Elbow
Race Tuning Required Yes
$363.25 (CAD)

Race Tuning Required for this product

Sinister Diesel Intake Elbow for the 2004.5-2005 LLY. This kit is designed and engineered to out perform the competition. Comes with a Mandrel bent aluminum tube and CNC base plate designed to hold even the highest boost levels. Designed to fit all 2004.5-2005 GMC/Chevy Duramax 6.6L LLY diesels.


  • Construction - Aluminum
  • Product Design - Mandrel bent tubing with full TIG welds and pressure tested
  • Note - This intake elbow has a 1/8 NPT fitting for a boost gauge
  • Kit Includes - Intake Elbow and all hardware required for installation


  • ** Requires removal of EGR System, and RACE Tuning **

Customers who bought this item also bought

Daystar "Do Not Flash" OBDII Plug

$24.99 CAD
Daystar's NO FLASH PLUGS provide an effective way to preserve the tune on your diesel or other custom tuned ride. Protect your custom tune with Daystar!

Replacement Up-Pipes w/ Gaskets - GM 2001-2016

$395.00 $355.50 CAD
Increase flow in your 2001-2016 GMC Chevy 6.6L Duramax LB7, LLY, LBZ, LMM, and LML diesel pickup with these heavy duty Replacement Up-Pipes with gaskets. The high flow design increases turbo spool-up, throttle response, and lowers EGT's. For use in non-EGR applications.

BD Exhaust Manifold Full Bore - Drivers Side - GM 2001-2010

SKU: BD1041460
$241.00 CAD
2001-2010 GMC Chevy Duramax LB7/LLY/LBZ/LMM - BD’s Full Bore exhaust manifold restores exhaust flow balance, improves power and reduces EGT’s inside the combustion chamber. All of which is accomplished by maintaining internal bore size thus maintaining turbo drive pressure.

BD Common Rail Fuel Plug - Dodge 2007-2018 / GM 2004.5-2010

SKU: BD1050071
$48.00 CAD
2004.5 - 2010 GM 6.6L Duramax & 2007.5 - 2018 Dodge 6.7L Cummins - Improve your engine starts and performance when using a tuner with BD's rail plug. Seals in 30,000PSI of fuel pressure.

ARP Head Stud Kit - GM Duramax 6.6L 2001-2016

SKU: ARP230-4201
$913.50 CAD
These ARP head studs for your 2001-2016 GMC/Chevy 6.6L Duramax are rated at 220,000 psi tensile strength, and provide the clamping force required to keep cylinder heads from lifting due to higher combustion pressures. Highly recommended for tuned Duramax’s.