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2011-2015 Duramax 4" CAT Delete Pipe (431001)
Description
Fits
| Year | Make | Engine |
| 2011-2015 |
GM | LML 6.6L Duramax |
Mel's Manufacturing Exhausts are designed to fit all wheelbase & cab configurations unless otherwise specified.
The 431001 by Mel's Manufacturing replaces your stock catalytic converter on your 2011-2015 LML with a high-flow 4" race pipe. By allowing your exhaust to flow more freely you'll receive better throttle response and lower EGTs. Just like all of Mel's Manufacturings Exhaust kits, it will come with all the required clamps, pre-weld contour bent hangers, and stronger flanges to help you cruise through the installation process!
Part Number: 431001
Features
- 4" Aluminized Steel
- Deletes OE Catalytic Converter
- No Bungs
- OEM Style 4-Bolt Flange
- Lower EGTs
- Down-pipe to DPF
Notes
- This will NOT work for trucks equipped with the 3-bolt flange off the turbo direct pipe! The turbo direct pipe on some of the 2015 models has a 3-bolt flange instead of a V-band clamp. These kits will only fit models equipped with v-band clamp.
$103.16
Original: $294.74
-65%2011-2015 Duramax 4" CAT Delete Pipe (431001)—
$294.74
$103.16Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Description
Fits
| Year | Make | Engine |
| 2011-2015 |
GM | LML 6.6L Duramax |
Mel's Manufacturing Exhausts are designed to fit all wheelbase & cab configurations unless otherwise specified.
The 431001 by Mel's Manufacturing replaces your stock catalytic converter on your 2011-2015 LML with a high-flow 4" race pipe. By allowing your exhaust to flow more freely you'll receive better throttle response and lower EGTs. Just like all of Mel's Manufacturings Exhaust kits, it will come with all the required clamps, pre-weld contour bent hangers, and stronger flanges to help you cruise through the installation process!
Part Number: 431001
Features
- 4" Aluminized Steel
- Deletes OE Catalytic Converter
- No Bungs
- OEM Style 4-Bolt Flange
- Lower EGTs
- Down-pipe to DPF
Notes
- This will NOT work for trucks equipped with the 3-bolt flange off the turbo direct pipe! The turbo direct pipe on some of the 2015 models has a 3-bolt flange instead of a V-band clamp. These kits will only fit models equipped with v-band clamp.



















