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2001-2004 GM 2500/3500

287 products
Fleece | 2001-2004 GM Duramax LB7 Freedom Cylinder Head With Cupless Injector Bore (Passenger Side) Fleece | 2001-2004 GM Duramax LB7 Freedom Cylinder Head With Cupless Injector Bore (Passenger Side)
$1,710.00
$1,710.00
Fleece Performance 01-04 GM Duramax LB7 Freedom Cylinder Head w/Cupless Injector Bore (Passenger Side)
Fleece | 2001-2004 GM Duramax LB7 Freedom Cylinder Head With Cupless Injector Bore (Driver Side) Fleece | 2001-2004 GM Duramax LB7 Freedom Cylinder Head With Cupless Injector Bore (Driver Side)
$1,710.00
$1,710.00
Fleece Performance 01-04 GM Duramax LB7 Freedom Cylinder Head w/Cupless Injector Bore (Driver Side)
Fleece | 2001-2004 GM Duramax 6.6L LB7 High Flow LB7 Intake Horn Fleece | 2001-2004 GM Duramax 6.6L LB7 High Flow LB7 Intake Horn
$143.00
$143.00
Increase your LB7's potential with this simple, but effective upgrade. Back-to-back dyno pulls showed an increase of 15hp with this Fleece Performance Modified LB7 Intake Horn ? that?s about the ch...
FLEECE PERFORMANCE | 2001-2004 GM DURAMAX 6.6L LB7 63MM BILLET LB7 CHEETAH TURBOCHARGER Fleece | 2001-2004 GM Duramax 6.6L LB7 63MM Billet LB7 Cheetah Turbocharger
$2,851.00
$2,851.00
Wake up your 2001-2004 LB7 with the drop in replacement Fleece Performance LB7 Cheetah Turbocharger. Featuring a Fleece Performance custom 63mm compressor wheel and high flow Inconel turbine wheel,...
Fleece | 2001-2002 GM 6.6L LB7 Duramax Allison Tapshifter Fleece | 2001-2002 GM 6.6L LB7 Duramax Allison Tapshifter
$570.00
$570.00
The Fleece Performance TapShifter allows you to shift your 2001-2005 GM Allison Transmission with the touch of a button just like the 2006 and newer trucks. Perfect for towing, drag racing, daily d...
Fleece | (2) Set TO -10AN Fittings Purchased With Allison Transmission Cooler Lines
$45.00
$45.00
Fleece Performance (2) Setrab to -10AN Fittings Purchased w/ Allison Transmission Cooler Lines