LB7 Duramax High Flow Manifold and Up Pipe Install

Comprehensive instruction on replacing the restrictive OEM Manifolds and Up Pipes for bigger, high flow pieces!

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2001 Chevrolet Silverado 2500HD LB7 Duramax

Here is a list of everything done to this truck to date:
Engine:
Headgaskets/ARP Studs
Stock Injectors
DuramaxTuner Built Trans Tuning
HSP Diesel 3"Hot/Cold Side Piping
HSP Diesel 4" Fabbed Intake
DRP 3.5" Intake Horn
WCFab 3" Ybridge
LML Drivers Side Exhaust Manifold
Welded Water Pump
Rebuilt Port/Polished Turbo
HSP Diesel Corner Mount Coolant Reservoir
HSP Diesel Billet Thermostat Cross over pipe


Fuel:
Fass Titanium 150 Lift Pump
1/2" Fuel line running directly to 1/2" inlet fitting on LBZ CP3 and FPR
BD Sump Kit
FPRV Block Off Kit


Transmission/Transfercase:
Built Transmission with Suncoast Gmax 5 Kit and Suncoast 1056 TD Converter
Trans Tuning for Defuel shutoff and 2ng Gear launch
Rebuilt transfercase with Pump Rub Kit
5/8" trans cooler lines
TCase Brace and new Transmission mounts
Allison Deep Pan/Filter Kit


Steering:
PPE Pitman/Idler Arm Braces and new Pitman/Idler Arms
Rare Parts G2 Tie Rods
Empire Stainless Steel Straight Centerlink
Redhead Steering Gearbox
Performance Steering Products Power Steering Pump
Bilstein Steering Dampner


Suspension:
HSP Diesel 70" Traction Bars
Fox 2.0 Front Shocks
Bilstein 5100 Rear Shocks
All new Timken Wheel bearings
Cognito Upper Control Arms
Kryptonite Swaybar Links
Hellwig Rear Swaybar
New GM front bumpstops
MA Rear Suspension Stops
Detroit Trutrac/New axle seals and bearings in rear axle


Exhaust:
3" MBRP Downpipe
5" Magnaflow Straight Pipe
DMAXStore MaxFlow Manifolds & Up Pipes


Wheels/Tires:
Gear Big Block 725BM 20x12 -44 Wheels
305/50/R20 Toyo Proxes
1.5" Spacers in rear