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

   
• OE Style Catalytic Converter Assembly

  Part Number: 57-290

  OE Style catalytic converter assembly

  $537.26

   
• 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

   
• Heavy Duty Muffler Aluminized

  Part Number: 57-427

  Muffler, 8-1/2"dia. x 29-1/2"L. All welded seams, long lasting heavy duty aluminized steel. Will not split at seams like original equ... more

  $75.92

   
• Aluminized Tail Pipe

  Part Number: 57-234

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

  $115.97

   
• 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

   
• 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

   
• Tail Pipe Kit

  Part Number: 57-276

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

  $149.03

   
• 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

   
• 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

   
• 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

   
• Turbo Pipe, Aluminized

  Part Number: 57-254

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

  $53.90

   
• Hanger for Double Pipe

  Part Number: 57-455

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

  $52.80

   
• Y-Pipe

  Part Number: 57-240

  Y-pipe for 6.5L diesel

  $409.80

   
• 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

   
• Turbo Pipe, Aluminized

  Part Number: 57-269

  Turbo pipe, aluminized that fits Mercedes engines

  $305.70

   
• Exhaust Manifold Kit - Driver's Side

  Part Number: 57-360

  LH Exhaust Manifold kit that fits Chevy. 8 Cylinder 5.7L 350 CID '87-95, includes: 3 studs, 3 nuts. No additional donut needed. Order... more

  $155.10$136.49

  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

   
• Insulator Hanger

  Part Number: 57-433

  Rubber insulator hanger for exhaust

  $14.55

   
• 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