FABRICATION COMPONENTS

Building custom exhaust or charge piping for your 2003–2007 Ram 2500/3500? CPP Diesel stocks the fabricator-grade hardware you need—V-band flanges & clamps, stainless mandrel bends, aluminum tubing, silicone couplers/reducers, T-bolt & constant-tension clamps, weld bungs, and tools—curated for 5.9L Cummins projects.

Browse the full 03–07 FABRICATION COMPONENTS category

Shop by Component

• V-Band Flanges & Clamps
  • V-Band Flanges & Clamps (Category)
  • CPP Male/Female V-Band Flange Sets (3"/3.5"/4"/5")
  • PPE 517140003 — 4.0" Quick-Release 3-Piece Set
• Stainless Mandrel Bends & Straight
  • PPE 4.0" 90° Stainless Bend
  • PPE 4.0" 45° Stainless Bend
  • PPE 4.0" 180° Stainless Bend
  • Diamond Eye 420048 — 4.0" x 48" Straight (409 SS)
• Aluminum Tubing (Charge Pipe Builds)
  • PPE 3.0" 90° Aluminum
• Silicone Couplers & Reducers
  • 03–07 Silicone Couplers (Category)
  • aFe 46-20010 Coupler & Clamp Kit (03–07)
  • PPE 4.0" Silicone Coupler (5-ply)
  • PPE 4.0"→3.0" Silicone Reducer (5-ply)
• Clamps — T-Bolt & Constant-Tension
  • CPP 4.0" T-Bolt Clamp
  • CPP 3.5" T-Bolt Clamp
  • CPP 3.0" Constant-Tension T-Bolt Clamp
  • Mishimoto MMCLAMP-35 (3.38"–3.70")
• Weld Bungs & Fittings
  • Fleece -8AN Aluminum Weld Bung
  • Dorman 904-528 EGT Bung Repair
  • 03–07 Fittings & Couplers (AN, NPT, QC)
• HD / Pinless Clamp Systems
  • Vibrant 32518 — 4.0" Pinless HD Clamp
  • Vibrant 32516 — 3.0" Pinless HD Clamp
• Tools
  • CPP 2990 Manual Tubing Bead Roller

Why Buy Fabrication Parts from CPP Diesel?

• 03–07 Focused: Parts chosen around 5.9L CR layouts, common 3.0"–5.0" piping sizes, and typical turbo/exhaust packaging.
• Brand Coverage: CPP, PPE, Diamond Eye, Vibrant, Mishimoto, aFe, Fleece—and more—so you can build it your way.
• Workable Mix: Stainless bends for hot side, aluminum for charge pipes, silicone/T-bolts for reliable sealing under boost.

Tech Notes & Fitment

• Material choices: Use 304/409 stainless for exhaust heat; 6061 aluminum for intercooler/charge pipes to save weight.
• Clamp strategy: Constant-tension T-bolts maintain seal as pipes heat cycle; V-bands simplify service and clocking.
• Bending & radius: Match bend radii to your routing; tighter radii can increase restriction—plan transitions with reducers as needed.

Frequently Asked Questions

What sizes work best for 03–07 charge pipes and exhaust?

Most 5.9L builds use 3.0"–3.5" aluminum for charge pipes and 4.0" (sometimes 5.0") on exhaust. Always confirm clearances and turbo outlet/downpipe size.

Should I use V-bands or HD/pinless clamps?

V-bands are compact and great for exhaust and hot-side joints. Pinless HD clamps excel on big-boost charge pipes where rapid service and alignment are important.

Do I need constant-tension clamps?

They help maintain a 360° seal through heat cycles—ideal for silicone couplers on intercooler/charge pipes, especially on trucks that tow or see large temp swings.