Product Description
Clean, straight-through flow for 4-inch systems. The MBRP GP016 is a 30" overall, 4" in/4" out aluminized (ARMOR LITE) muffler delete section designed to replace a 30" muffler and free up exhaust flow. It’s an easy way to sharpen tone and reduce backpressure on universal 4" diesel exhausts.
Fitment
- Universal 4-inch exhaust systems — replaces any 30" overall muffler section with 4" single inlet / 4" single outlet.
- Works with common clamp-on or welded installs; verify overall length and pipe size before ordering.
Cross-Reference / Alternatives (MBRP-only)
- Stainless upgrade (T304, 30" overall): MBRP MDS30
- Stainless (T409, 30" overall): MBRP MDS930
- Aluminized (Armor Lite) alternative, 30" overall: MBRP MDA30
- Finish the system with an MBRP tip (4" inlet): T5124 (5" OD, T304), T5124BLK (5" OD, Armor BLK), T5126 (7" OD, T304)
Specifications
| Brand | MBRP |
| Part Number | GP016 |
| Series | Armor Lite (Aluminized Steel) |
| Inlet / Outlet | 4" / 4" |
| Overall Length | 30" |
| Configuration | Straight-through muffler bypass (delete) |
| UPC | 882963103918 |
What’s Included
- (1) 30" overall muffler delete section, 4" in / 4" out (aluminized steel)
Helpful Notes
- Check your system’s overall muffler length and pipe size before ordering.
- Clamps not included; reuse existing hardware or add appropriate 4" band clamps.
FAQ
Will GP016 fit my truck if I have a 4" aftermarket exhaust?
If your current muffler section is 30" overall and uses 4" single inlet/single outlet, GP016 will replace it. Always measure before purchase.
What’s the difference between GP016, MDA30, and MDS930?
All are 30" muffler bypass pipes for 4" systems. GP016 and MDA30 are aluminized steel (Armor Lite), while MDS930 is T409 stainless for added longevity. MDS30 is T304 stainless (Armor Pro) for maximum corrosion resistance.
Will this make the truck louder?
Yes. Deleting the muffler increases overall volume and sharpens exhaust tone compared to a muffled system.
