2011-2015 GM 2500/3500 6.6L Duramax — Downpipe-Back
SKU:FP-GM-20112015-66-DPB
From $684
- Free shipping — every order, US & Canada
- Bolt-on install — no cutting, no welding
- Talk to a real tech — 888-322-4233 before you buy
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Competition use only. This system is sold for sanctioned racing and closed-course use — not legal for sale or use on pollution-controlled vehicles on public roads. Removing or defeating emissions equipment (DPF, EGR, SCR) on a street-driven truck violates federal law. Read the Off-Road Use Policy before you buy.
WANT THE MATCHED BUILD? BUNDLE &amP; SAVE.
Pair this exhaust with a tuner + EGR in a Full Send Kit — priced to beat buying parts solo.
— // OVERVIEW
BUILT TO FLOW, BUILT TO LAST
Upgrade your 2011-2015 GM 2500/3500 6.6L Duramax with this 4″ or 5″ downpipe-back, mandrel-bent from premium T409 stainless for maximum flow — a deeper, meaner note and a direct bolt-on install.
— // SPECS
Additional information
| Weight | N/A |
|---|---|
| Dimensions | N/A |
| Pipe Size | 4", 5" |
| Material | Aluminized, T409 Stainless |
| Muffler | No Muffler, With Muffler |
| System Type | Downpipe-Back |
| Platform | Duramax 6.6L LML (2011–2016) |