Product Description
DIAMOND EYE 400048 is a universal 4.0" OD x 48" straight exhaust pipe in aluminized steel, bumped on one end (expanded ID) for easy slip-fit assembly. Use it to extend or repair 4" systems, build custom sections, or replace damaged tubing while maintaining flow and durability.
FAQ: WHAT DOES “BUMPED ON ONE END” MEAN?
One end is expanded to fit over standard 4" OD tubing or components for a clean slip-fit connection. The opposite end remains 4" OD to slip inside an expanded joint.
FAQ: WILL THIS FIT MY TRUCK?
Yes—this is universal 4" tubing. If your system uses 4" components (common on many diesel platforms), this section can be added anywhere you need 48" of straight pipe. Always measure your existing system and verify 4" diameter before ordering.
FAQ: ALUMINIZED VS. STAINLESS—WHICH SHOULD I CHOOSE?
Aluminized offers strong value and corrosion resistance for most climates. Choose stainless (e.g., Diamond Eye 420048) for maximum longevity in harsh, corrosive environments.
Fitment Details
- Type: Universal straight section for 4" exhaust systems
- Length: 48" (1220 mm)
- Ends: One end expanded (ID), one end 4" OD
- Common uses: Muffler delete sections, mid-pipe extensions, custom turbo-back/cat-back fabrication
Cross-Reference / Alternatives (Diamond Eye Only)
- 400036 — 36" Aluminized 4" OD Straight (bumped one end)
- 420048 — 48" Stainless 4" OD Straight (bumped one end)
- 420036 — 36" Stainless 4" OD Straight (bumped one end)
Specifications
| Brand | Diamond Eye Performance |
|---|---|
| Part Number (MPN) | 400048 |
| UPC | 841963116410 |
| GTIN | 0841963116410 |
| Diameter | 4.0" OD |
| Length | 48" |
| End Form | Expanded ID (“bumped”) on one end / 4" OD on the other |
| Material | Aluminized steel |
| Shipping Weight | ~16 lb |
| Shipping Method | Ground (oversize length) |
| Prop 65 | WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov |
