Showing 1-20 of 45
SKU: 57-425
Aluminized muffler, (2) 2-1/2" inlet, (1) 3" outlet, '96-On GM/Workhorse
SKU: 57-380
Left Exhaust Manifold Kit - 6.0 Liter Engines. Includes 3 studs, 3 nuts and a gasket - Drivers Side
SKU: 57-381
Right Exhaust Manifold Kit - 6.0 Liter Engines. Includes 3 studs, 3 nuts and a gasket - Passenger Side
SKU: 57-220
Aluminized Muffler, 3" Dia. Inlet and Outlet that fits GM/Workhorse P-30 87-95 with 350ci and 95-On 6.5L Diesel. Ford E350/450 with 5... more
SKU: 57-482
Right Exhaust Gasket. Fits on the right side of our 57-280 Y pipe and fits our pipe 57-9163
SKU: 57-481
Left Exhaust Gasket. Fits on left side of our Y pipe 57-280. Also fits our 57-9162 left side exhaust pipe.
SKU: 57-213
Pipe Extension, 3" dia. x 55" long. Fits 87-on Chev P-30 with 350 c.i. engine
SKU: 57-234
Aluminized tail pipe, 3" dia. Formed in two pieces for shipping purposes. 1991-on
SKU: 57-238
Y-Pipe, .made with 409 stainless steel
SKU: 57-315
Football shaped flange gasket, fits 4.3L, 4.8L, 5.7L and 6.0L
SKU: 57-385
Left Exhaust Manifold Kit - Includes Required Gaskets and Hardware, 350 C.I. Engine, 1996-On.
SKU: 57-363
Right Exhaust Manifold kit - fits 350 C.I. '87-ON, includes: 3 studs, 3 nuts, 3 springs. Comes with Preheat Shield used on older truc... more
SKU: 57-437
Universal pipe hanger. Heat this 1/2" dia. x 11" rod and bend it around pipes or mufflers and weld it on. or use two, one welded to t... more
SKU: 57-232
LH Aluminized Tail Pipe, 14 ga, 2-1/2" dia. Fits 76-87 Chev P-30 with 350 c.i. engine (cut in two pieces for shipping)
SKU: 57-229
Kick down exhaust pipe - 3"Dia. x 16"L. Kicks down at a 45 degree angle.
SKU: 57-266
Upper exhaust clamp for 3" pipe. Use with bottom clamp 57-267
SKU: 57-237
RH Aluminized Tail Pipe, 14 ga,, 2-1/2" dia. Fits 76-87 Chev P-30 with 350 c.i. engine (cut in two pieces for shipping)
SKU: 57-368
Right Exhaust Manifold, Dual Exhaust - Stainless Steel. Fits P-30 Chassis, 1985-88 with 8 cylinder, 5.7 liter 350 CID engine with code M.
SKU: 57-233
Tail Pipe, 3" dia. Fits 89-90 Chev P-30 with 350 engine, single converter (two piece for shipping)
Mill Supply's GM/Workhorse exhaust system line covers a vast amount of applications and it keeps on growing. We stock parts that fit from 1976 chassis' to today's most current chassis'. We also carry parts for the 1982-1994 6.2L diesel chassis as well as the 1995-present 6.5 liter diesel chassis. We make it a priority to be able to have the parts you need no matter how old or new your stepvan may be.
Our newest addition to our GM/Workhorse line is a two piece Y pipe. It fits the 4.8L and 6.0L Workhorse gasoline chassis'. Our staff designed this new Y pipe to eliminate the "football flange" design which is known for causing cracking by the manifold. The cracks by the manifold are a result of the flange design which does not enable the pipes to flex.
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