Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Exhaust› Exhaust Pipes, Systems and Components
MBRP
MBRP 1994-2002 Dodge Cummins 4 Down-Pipe T409
SKU: M006 DS9401
Moderate — 2–4 hours
Overview
Show original supplier description
Part #: DS9401
Some folks are just not satisfied with the usual. They have to always be pushing the limits; refining and adjusting; until they have the truck that has no limits. We have put together some components that will take you to the next level. The fastest path from the turbo to the tip is through an MBRP down pipe. Bulking up exhaust flow.
Features:
- Increased Horsepower And Torque. Lowers EGT's.
Armor Plus Turbocharger Down Pipe | 4 in. | T409 Stainless | 4 in. Dual Wall Tip
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Vehicle Symptoms
- High exhaust gas temperatures (EGTs) under load
- Reduced power and sluggish acceleration
- Excessive black smoke from exhaust
- Turbo lag or slow spool up
- Poor fuel economy while towing
Relevant Conversations
- MBRP downpipe 5.9 Cummins 1998 Dodge Ram
- 4 inch downpipe for 1998 Ram 2500
- lower EGTs with aftermarket downpipe
- MBRP Armor Plus downpipe review
- 1998 Cummins downpipe upgrade benefits
- downpipe vs stock exhaust 5.9 Cummins
- how to install downpipe on 1998 Dodge Ram
- best downpipe for 5.9 Cummins turbo lag
- downpipe for 1998 Ram 3500 no cat
- Cummins downpipe replacement symptoms
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | MBRP |
| Part Number | M006 DS9401 |
About MOTORMIA
Buy with Confidence
Returns & Fitment
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return PolicyShipping
Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.
View Full Shipping Policy