2017-2023 Duramax 6.6 Stainless Steel 4" Race Pipe
Features:
- 4" Race Pipe
- Easy Install
- STAINLESS STEEL - NO CHEAP ALUMINIZED STEEL HERE!!
- All cab size and bed length configurations
Manufactured by ProPower Diesel in the USA.
IMPORTANT NOTE
In 2017, GMC made a production change in the connection between the catalytic converter and the turbo direct pipe on the L5P. Please ensure you have the newest 4-bolt style flange before ordering.
Product Information
Product Information
Shipping & Returns
Shipping & Returns

2017-2023 Duramax 6.6 Stainless Steel 4" Race Pipe
2017-2023 Duramax 6.6 Stainless Steel 4" Race Pipe
Features:
- 4" Race Pipe
- Easy Install
- STAINLESS STEEL - NO CHEAP ALUMINIZED STEEL HERE!!
- All cab size and bed length configurations
Manufactured by ProPower Diesel in the USA.
IMPORTANT NOTE
In 2017, GMC made a production change in the connection between the catalytic converter and the turbo direct pipe on the L5P. Please ensure you have the newest 4-bolt style flange before ordering.
Original: $506,354.00
-70%$506,354.00
$151,906.20Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Features:
- 4" Race Pipe
- Easy Install
- STAINLESS STEEL - NO CHEAP ALUMINIZED STEEL HERE!!
- All cab size and bed length configurations
Manufactured by ProPower Diesel in the USA.
IMPORTANT NOTE
In 2017, GMC made a production change in the connection between the catalytic converter and the turbo direct pipe on the L5P. Please ensure you have the newest 4-bolt style flange before ordering.



















