Specifications

The Grand Rock SF-448 is a high-quality 4" x 48" stainless steel flex exhaust pipe, engineered for heavy-duty truck applications. Constructed from 304 stainless steel, this flex pipe offers exceptional durability and resistance to corrosion, ensuring a long service life even under harsh conditions. Its flexible design allows for easy installation and accommodates engine movement, reducing stress on exhaust components. Whether you're replacing a damaged section or upgrading your exhaust system, the SF-448 provides a reliable solution for maintaining optimal vehicle performance.

Compatibility

Freightliner Cascadia (2010–2025)

Peterbilt 389 (2008–2025)

Kenworth T680 (2013–2025)

Volvo VNL (2010–2025)

International Lonestar (2010–2025)

Alternative Part Numbers

  • OEM: Grand Rock

Related Parts

Grand Rock 2.5"x120" Flex Coil
Grand Rock Part No: G15-25120
$90.68 View Part
Grand Rock FLEX 4"x36" Galvanized
Grand Rock Part No: G15-436
$42.26 View Part
Grand Rock Exhaust G15-5120 Flex Pipe
Grand Rock Part No: G15-5120
$142.00 View Part
Grand Rock 5"X36 FLEX GALV
Grand Rock Part No: G15-536
$44.31 View Part
Grand Rock G15-418 FLEX,4"X18 GALV
GRAND ROCK Part No: G15-418
$23.94 View Part
Grand Rock G15-424 FLEX,4"X24 GALV
GRAND ROCK Part No: G15-424
$29.92 View Part
Grand Rock S5-120SBA TUBE,5"X120,OD/OD ALZ
GRAND ROCK Part No: S5-120SBA
$177.39 View Part
Grand Rock SF-524 FLEX,5"X24 SS
GRAND ROCK Part No: SF-524
$88.97 View Part