EXHAUST SYSTEM AND COMPONENTS — 1998.5–2002 DODGE RAM 5.9L CUMMINS (24-VALVE, VP44)

Free up flow, reduce EGT, and add the tone you want. CPP Diesel stocks proven 4"/5" turbo-back systems, HX40 downpipes, clamps & hardware, and mufflers & tips that fit the 1998.5–2002 Ram 2500/3500. Shop stainless or budget-friendly aluminized options from Banks, MBRP, and Diamond Eye.

Shop by Subcategory

• Turbo-Back Systems (4" / 5") — Banks, MBRP, Diamond Eye kits for 98.5–02. Start here: 98.5–02 Exhaust Systems hub.
• Featured Turbo-Back Kits — Banks 48638 Monster (Power Elbow), Banks 48638-B (Black Tip), Diamond Eye K4212A 4" Aluminized, Diamond Eye K4212S 4" Stainless, Diamond Eye K5216A 5", Diamond Eye K3322S Dual/Split Rear, MBRP S6100AL 4" Armor Lite, MBRP S61120AL 5" Aluminized.
• Downpipes (HX40 / Super B) — MBRP DALHX40 Downpipe, HX40/Super B options (BD, Industrial).
• Clamps, V-Bands & Adapters — CPP 3905216 HX40 V-Band Clamp, Diamond Eye 4" Band Clamp, Clamps & Accessories (4"/5").
• Mufflers & Tips — 4"/5" diesel mufflers, Diamond Eye 5x6x12 Tip, Exhaust Tips (assortment).
• Brand Spotlights — Diamond Eye, MBRP, Banks Power.

Featured 98.5–02 Picks

• Banks 48638 Monster (Power Elbow) — 4" turbo-back with cast elbow for flow & lower EGT.
• Diamond Eye K4212A 4" Aluminized — value kit, CARB-exempt downpipe noted on page.
• Diamond Eye K5216A 5" Turbo-Back — big flow for tuned/towing rigs.
• MBRP S6100AL 4" Turbo-Back — Armor Lite series, single side exit.
• MBRP DALHX40 Downpipe — includes clamp; HX40/aftermarket turbo fitment.
• CPP 3905216 HX40 V-Band Clamp — secure the outlet for leak-free installs.

Why Buy from CPP Diesel

• 2nd-Gen Focus: We stock the 98.5–02 fitments that actually clear frames, crossmembers, and spare tires.
• Top Brands + CPP Hardware: Banks, MBRP, Diamond Eye—plus clamps, adapters, and tips to finish the job.
• Expert Support: Sizing (4" vs 5"), HX40 downpipe fitment, hanger alignment, and tip selection.
• Fast Shipping: Popular kits and hardware ship quickly from U.S. warehouses.

Finish your system with INTERCOOLERS & BOOST TUBES and monitor temps via GAUGES / RELATED.

Helpful Notes

• Material: Aluminized is budget-friendly; T409/T304 stainless resists corrosion and looks better long-term.
• 4" vs 5": 4" is ideal for most street/tow builds; 5" offers lower backpressure and deeper tone on higher-output trucks.
• Downpipe mating: HX40-flanged turbos need the proper 4" downpipe and correct V-band clamp for a tight seal.
• Dual/Split rear: Choose split-rear kits for looks & sound; verify spare-tire clearance.
• Local laws: Sound regulations vary—choose muffled systems for quiet towing and neighborhood manners.

Frequently Asked Questions

Is 4" or 5" better on a mostly stock 24-valve?

Most daily/tow rigs are perfect with 4" turbo-back (quicker spool, great tone). Step to 5" if you’re higher horsepower or prefer a deeper note.

What’s special about the Banks Monster system?

It includes a cast Power Elbow to reduce turbine-out restriction and improve flow, plus high-quality tubing and tip options. See Banks 48638 / 48638-B.

Which downpipe fits my HX40 or Super B turbo?

Use an HX40-flanged 4" downpipe and the proper V-band clamp to prevent leaks.

Can I run a no-muffler kit?

Yes—several kits offer muffler-delete options (e.g., Diamond Eye “RP”, MBRP “PLM”). Consider local sound rules and cruising drone.

Do I need a tip?

Not required, but tips finish the look and can angle exhaust away from the body. See our exhaust tips or Diamond Eye 5x6x12.