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OBDI Multi-Position Tuner for 1994-1995
A Quadstar Tuning exclusive! Customized to fit the 1994 and 1995 6.5L diesels with a removable chip in the PCM. This is a plug & play unit that holds up to...
Regular price $60000 $600.00
OBDII Single Tune for 1996+
For all 1996 and newer 6.5L Turbo diesel vehicles including trucks, vans, cab-chassis, boats, and anything else with a DS4 pump! This PCM is a sealed unit and requires re-flashing with a...
Regular price $37500 $375.00
OBDI Single Tune for 1994-95
Single replacement PROM chip for 1994 and 1995 6.5L Diesel vehicles. After completing an order, we will provide a comprehensive online form for you to fill out with all vehicle...
Regular price $35000 $350.00
ARP Head Stud Kit
Genuine ARP head studs for any 6.2L or 6.5L build. These are the latest style with Allen drive heads for easy installation and removal. If the website lets you buy,...
Regular price $21698 $216.98
Bosch Marine Fuel Injectors
Your online outlet for premium quality 6.5L turbo marine style injectors. Each injector is hand-built with genuine Bosch nozzles. Pop pressures are guaranteed to be within spec and are calibrated using...
Sale price $57500 $575.00
Ultimate PCV Catch Can
Our modern solution to an age old problem! Application specific, this setup is designed to handle the high-flow requirements of turbo diesel engines that have unavoidable blow-by. Alternative universal solutions...
Regular price $23595 $235.95
GEP 6.5L Crankshaft
Genuine GM/GEP 6.5L Optimizer 6500 cast steel crankshaft. These are brand new surplus, not refurbished or remanufactured. STD/STD size. For 1 piece rear main seal blocks ONLY, Turbo or non-turbo. HMMWV/Hummer H1 - 5743227...
Sale price $69999 $699.99
Heavy Duty Heater Hose
This custom molded hose replaces the factory metal/rubber molded pipe that goes from the thermostat housing to the heater core on the firewall. Completely deleting the problematic quick connect fitting...
Regular price $8499 $84.99
Center Turbo Oil Drain Blockoff Plate
This custom S plate is used to block off the oil ports on a 6.5L center turbo style engine block when the ports are not needed. Fits GM, GEP, IHI...
Sale price $1999 $19.99
Pump Timing Wrench
Put the pry bar down and use our custom made injection pump wrench to make adjusting your DB or DS injection pump a breeze! Simply slide the tool into the...
Sale price $5499 $54.99
Handheld OBDII Scan Tool
You've landed at the right spot if you are looking for an OBDII scan tool that will work with your 1996 or newer 6.5L Turbo diesel. We put the leg...
Regular price $28499 $284.99
Billet Fuel Return Log
Our solution to replacing the factory metal return lines on 6.2 and 6.5L diesel engines. This kit is designed to replace both metal lines on the engine; the one across...
Sale price $6999 $69.99
Dually Fender Clearance Lights
Another Quadstar Tuning exclusive! These are direct-fit bolt-in replacements for the factory 1988-98 C/K 3500 GMT400 dually fender lights. Simply remove your faded or broken originals, connect two wires per light, and...
Engine Coolant Temperature Fooler
For all computer controlled 6.5L turbo diesels, this ECT fooler allows you so quickly and easily perform timing adjustments without having to fully warm up the motor. Simply disconnect the...
Regular price $1499 $14.99
