Peterbilt 357/378 Elbows, Piping & Comp.
Make upgrading your exhaust system a breeze with aftermarket universal elbows, piping and components for your Peterbilt 378. Find the perfect custom, chrome, and aftermarket exhaust pipes. Upgrade your Peterbilt exhaust without breaking the bank at 4 State Trucks.
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Peterbilt 378 & 379 BESTfit 8 To 5 Inch 58 Degree Chrome Exhaust Elbow
BESTFIT TRUCK PARTS
$394.99BESTfit Exhaust Pipe Elbow With Tapered Top For O.D. StacksConstructed from resilient chrome-plated steel, this elbow features an impressive 8-inch outer diameter and a precise 58-degree bend, ensuring optimal exhaust flow and performance. Its tapered...$394.99 -
Peterbilt 378 & 379 BESTfit Chrome 7 To 5 Inch 60 Degree Exhaust Elbow
BESTFIT TRUCK PARTS
$396.99BESTfit Exhaust Elbow 7-5 Inch Fits Peterbilt 379 & 378Crafted from durable chrome-plated steel, this elbow boasts a substantial 7-inch outer diameter and a precise 60-degree bend, ensuring optimal exhaust flow and efficiency. Its tapered top is designed...$396.99 -
Peterbilt 357 & 378 5 Inch Multi-Bend Exhaust Elbow, Driver Side Replaces 14-15501
AUTOMANN USA
$1,153.99BESTfit Driver Side Multi-Bend Exhaust Elbow Fits Peterbilt 378/357Enhance your truck's exhaust system with our Aluminized Steel Exhaust Elbow designed for the driver's side. Featuring a 5-inch I.D. inlet and a 5-inch O.D. outlet, this exhaust elbow is...$1,153.99 -
Peterbilt 357, 378, 379 BESTfit 5 Inch Y Pipe Elbow Combo, Passenger Side, Replaces 14-15500
BESTFIT TRUCK PARTS
$1,399.99BESTfit Aluminized Steel Hi Mount Y Pipe Combo W/ 5 Inch ID Inlet & 5 Inch O.D. OutletsCrafted from robust aluminized steel and enhanced with a durable ceramic coating, this exhaust pipe guarantees exceptional heat resistance and longevity. Designed for...$1,399.99 -
Peterbilt BESTfit Chrome 8 Inch To 5 Inch Y Pipe For Long Leg
BESTFIT TRUCK PARTS
$682.99BESTfit Chrome Y-Pipe For Long Leg ElbowEnhance your exhaust system with our Chrome-Plated Steel Y-Pipes, designed for BESTfit Long Leg Elbows. Crafted from durable materials, these Y-Pipes feature an 8-inch to 5-inch outer diameter for optimal...$682.99 -
Peterbilt 378, 379, 389, 389 Glider Chrome 7 Inch To 5 Inch Y-Pipe For BESTfit Long Leg
BESTFIT TRUCK PARTS
$712.99BESTfit Y-Pipe Fits PeterbiltEnhance your exhaust system with our Chrome-Plated Steel Y-Pipes, designed for BESTfit Long Leg configurations. Crafted with precision, these Y-Pipes feature a 7-inch to 5-inch outer diameter and a 90-degree angle for optimal...$712.99 -
Peterbilt 378, 379, 389, 389 Glider Chrome 6 Inch Y-Pipe For BESTfit Long Leg
BESTFIT TRUCK PARTS
$550.99BESTfit Y-Pipe Fits PeterbiltThese Y-pipes are engineered from durable chrome-plated steel, ensuring longevity and corrosion resistance. With a 6-inch diameter and 5-inch inlet, they are designed specifically for BESTFIT Long Leg configurations. Sold...$550.99 -
BESTfit Chrome Exhaust Elbow 29 In Top, 20 Bottom Leg, 8 to 5 Inch Tapered Diameter For Peterbilt 378, 379
BESTFIT TRUCK PARTS
$575.99BESTfit Peterbilt Long Drop Elbow Reduced 8 Inch To 5 Inch * High Quality Drop Elbow * Chrome-Plated * 8 Inch* Long Leg * With Tapered Top Reduced To 5 Inch O.D. Bottom * Sold Individually* Warranty On Drop Elbow Against Defects In Workmanship & Material...$575.99 -
BESTfit 8 Inch Long Drop Elbow For Peterbilt 378, 379
BESTFIT TRUCK PARTS
$575.99BESTfit Peterbilt Long Drop Exhaust ElbowThe BESTfit 8 Inch Long Drop exhaust Elbow is designed for Peterbilt 378 and 379 models. It features a chrome-plated finish for a sleek and stylish look. The bottom has an 8-inch outer diameter and the top is...$575.99 -
BESTfit 7 To 5 Inch Long Drop Elbow For Peterbilt 378, 379
BESTFIT TRUCK PARTS
$490.99BESTfit Long Drop Elbow 7 To 5 Inch Fits Peterbilt * High Quality Drop Elbow * Chrome-Plated * 7 Inch* Long Leg * With Tapered Top Reduced To 5 Inch O.D. Bottom * Sold Individually* Warranty On Drop Elbow Against Defects In Workmanship & Material From...$490.99 -
BESTfit 6 To 5 Inch Long Drop Elbow For Peterbilt 378, 379
BESTFIT TRUCK PARTS
$406.99BESTfit Long Drop Elbow 6 Inch To 5 Inch Fits Peterbilt * High Quality Drop Elbow * Chrome-Plated * 6 Inch* Long Leg * With Tapered Top Reduced To 5 Inch O.D. Bottom * Sold Individually* Warranty On Drop Elbow Against Defects In Workmanship & Material...$406.99 -
BESTfit 6 Inch Long Drop Elbow For Peterbilt 378, 379
BESTFIT TRUCK PARTS
$324.99BESTfit Long Drop Elbow 6 To 6 Inch Fits Peterbilt * High Quality Drop Elbow * Chrome-Plated * 6 Inch* Long Leg * With Tapered Top 6 Inch O.D. Bottom * Sold Individually* Warranty On Drop Elbow Against Defects In Workmanship & Material From Date Of...$324.99