Stepvan Exhaust Systems & Components

• Aluminized Muffler

  Part Number: 57-425

  Aluminized muffler, (2) 2-1/2" inlet, (1) 3" outlet, '96-On GM/Workhorse

  $205.86$195.57

  ON SALE
• OE Style Catalytic Converter Assembly

  Part Number: 57-290

  OE Style catalytic converter assembly

  $540.29$513.28

  ON SALE
• 2-Piece 'Y' pipe

  Part Number: 57-280

  2-Piece 'Y' pipe for the 4.8L and 6.0L Workhorse Chassis. Your original 'Y' pipe is connected at the base by a 'Football Flange'. By ... more

  $412.80$371.52

  ON SALE
• Heavy Duty Aluminized Muffler

  Part Number: 57-427

  Muffler, 8-1/2"dia. x 29-1/2"L. Has 3-1/2" pipe ends. All welded seams, long lasting heavy duty aluminized steel. Will not split at s... more

  $75.92$72.12

  ON SALE
• Aluminized Tail Pipe

  Part Number: 57-234

  Aluminized tail pipe, 3" dia. Formed in two pieces for shipping purposes. 1991-on

  $115.97$104.37

  ON SALE
• Tail Pipe, Aluminized

  Part Number: 57-255

  Tail pipe, aluminized (cut in two for shipping) that fits B5.9L Cummins Diesel engine & 4.3L Mercedes. Tail pipe exits on RH side.

  $88.36$79.52

  ON SALE
• Muffler Hanger, 8.5" ring

  Part Number: 57-231

  Muffler hanger with 8-1/2" ring includes mounting bolts. Fits 57-427 muffler.

  $47.32$44.95

  ON SALE
• Tail Pipe Kit

  Part Number: 57-276

  Tail pipe kit. Includes 57-255, 57-223, 57-216 and 4 of 57-352.

  $149.03$134.13

  ON SALE
• Catalytic Converter

  Part Number: 57-215

  Catalytic Converter used for single or dual exhaust for 87 and newer Chev P-30 with 350 c.i. engine under 9500 lbs. GVRW. W... more

  $120.08$114.08

  ON SALE
• Y-Pipe for the 350 engine from 1979-95 GM and Workhorse Chassis

  Part Number: 57-238

  Y-Pipe, .made with 409 stainless steel

  $250.61$238.08

  ON SALE
• Turbo Pipe with 5.9 Liter, Aluminized

  Part Number: 57-256

  Turbo pipe, aluminized, that fits B5.9L Cummins diesel engines on Freightliner 2004 and newer.

  $68.00$61.20

  ON SALE
• Turbo Pipe, Aluminized

  Part Number: 57-254

  Turbo pipe, aluminized, that fits B5.9L Cummins diesel engines on Freightliner 2003 and older.

  $53.90$48.51

  ON SALE
• Hanger for Double Pipe

  Part Number: 57-455

  Hanger for double pipe, '96-On GM/Workhorse

  $52.80$50.16

  ON SALE
• Y-Pipe

  Part Number: 57-240

  Y-pipe for 6.5L diesel

  $409.80$368.82

  ON SALE
• Catalytic Converter

  Part Number: 57-218

  Replacement Catalytic Converter for gas engines. This is a new converter, not rebuilt, and has 3" pipe connections for the inlet and ... more

  $207.09$186.38

  ON SALE
• Turbo Pipe, Aluminized

  Part Number: 57-269

  Turbo pipe, aluminized that fits Mercedes engines

  $305.70$290.42

  ON SALE
• Football Shaped Flange Gasket

  Part Number: 57-315

  Football shaped flange gasket, fits 4.3L, 4.8L, 5.7L and 6.0L

  $30.45$28.93

  ON SALE
• Insulator Hanger

  Part Number: 57-433

  Rubber insulator hanger for exhaust

  $14.55$13.10

  ON SALE
• Replacement 'Y' Pipe

  Part Number: 57-205

  Replacement 'Y' pipe for 4.3L and 5.7L GM/Workhorse chassis, 1996-on. Pipes are held together with 'football flange' as original.

  $470.00$446.50

  ON SALE
• Aluminized Muffler

  Part Number: 57-220

  Muffler with 3" fittings. Fits 87-on Chev P-30 with 350 c.i. engine

  $64.22$57.80

  ON SALE