EXHAUST SYSTEM & COMPONENTS — 1994–1998 DODGE RAM 5.9L CUMMINS (12-VALVE, P7100)

Free up backpressure, control EGTs, and add a deeper tone with CPP Diesel’s curated 4"–5" turbo-back systems, HX/HX40 downpipes, clamps & V-bands, stacks, manifolds, and exhaust brakes for your 1994–1998 Ram 2500/3500.

Shop by Subcategory

• EXHAUST SYSTEMS (4"/5") — turbo-back kits for 94–98 (many list 94–02 coverage).
• DOWNPIPES (HX / HX40) — correct outlet & chassis fit for 94–02 trucks.
• EXHAUST BRAKES — BD remote-mount and Pacbrake PRXB kits for 12-valve.
• EXHAUST MANIFOLDS — 2-piece performance and OE-style options.
• V-BAND FLANGES & CLAMPS — secure, serviceable joints.
• CLAMPS & ACCESSORIES — band/torca clamps, hangers, hardware.
• STACKS / COMPONENTS — bed kits, elbows, tips & mounts.

Featured 94–98 Picks

• Diamond Eye K4212A-RP 4" Turbo-Back — proven 94–02 fitment and flow.
• BD 1037135 Exhaust Brake (’89–’98 12V) — remote-mount 4" vacuum-actuated brake.
• Pacbrake PRXB C44060 (’94–’98, manual) — strong backpressure at low RPM.
• HX/HX40 Downpipes (94–02) — correct outlet geometry for common turbo swaps.

Why Buy from CPP Diesel

• Second-Gen Focus: Parts vetted for 1994–1998 fitment, from downpipe clearance to hanger locations.
• Top Brands: Diamond Eye, BD Diesel, Pacbrake, Cummins, CPP hardware.
• Expert Support: We’ll help match HX/HX40 outlets, choose 4" vs 5", and size an exhaust brake for your gearing and use.
• Fast Shipping: Popular systems and hardware ship quickly from U.S. warehouses.

Cross-shop the full 1994–1998 Cummins catalog and add EGT/boost gauges to monitor temps after upgrades.

Helpful Notes

• Outlet styles: Many upgrade turbos use HX40-style 4.0" outlets—pair with the correct downpipe.
• Pipe size: 4" suits most tow/daily builds; 5" reduces restriction/noise further but needs more space.
• Brake types: Remote-mount vacuum or air-actuated kits (PRXB) add safe retarding on grades—great for heavy trailers.
• Hardware: Use quality V-bands and band clamps to prevent leaks; re-torque after heat cycles.

Frequently Asked Questions

Will a 94–02-listed exhaust fit my 1994–1998 12-valve?

Yes—most systems cover 1994–2002 5.9L trucks; your 12-valve years are included. Always verify product fit notes.

Do I need an HX40 downpipe for my turbo upgrade?

Many S300/HX40-outlet turbos require a 4.0" HX40 downpipe to match the outlet and body clearances.

Exhaust brake: BD vs Pacbrake?

BD 1037135 is a proven 4" remote-mount vacuum-actuated option; Pacbrake PRXB kits offer strong low-RPM braking with air actuation. Pick based on control style and trans type.

4" vs 5" turbo-back—what should I choose?

4" is ideal for towing and stock-to-mild power; 5" flows more and is quieter at cruise but is larger to route.

Are stacks street-legal?

Rules vary; stacks are commonly for off-road/show use. Check local laws before converting.