1999 Exhaust

Muffler, American Thunder 40 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-42541

4.74 out of 5 stars ( 86 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Exhaust Manifolds, Rectangular Port, 2.5 in. Diameter Collector, Cast Iron Construction, Natural Finish, fits SBC with Straight Plugs, Pair

Part Number: HOK-8525HKR

4.07 out of 5 stars ( 15 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

• Free Shipping

Muffler, FlowFX Series, 2.5 in. Inlet, 2.5 in. Outlet, 409 Stainless Steel, Natural Finish, Each

Part Number: FLO-71226

4.8 out of 5 stars ( 76 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Muffler, Delta Flow 50 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-942551

4.84 out of 5 stars ( 37 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

• Free Shipping

Muffler, Flowmaster 40 Series, 3 in. Offset Inlet/3 in. Center Outlet, Steel, Black, Each

Part Number: FLO-43041

4.83 out of 5 stars ( 47 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Headers, Shorty, Steel, Ceramic Coated, Chevy, GMC, 5.7L, w/o A.I.R. Injection, Pair

Part Number: BIG-91832-1FLT

4.25 out of 5 stars ( 8 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

• Free Shipping

Muffler, FlowFX Series, 3 in. Offset Inlet/3 in. Center Outlet, Reversible, Stainless Steel, Natural, Each

Part Number: FLO-71229

4.6 out of 5 stars ( 70 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Exhaust Manifold, SBC, Exhaust Manifolds, Rectangular Port, 2.5 in. Outlet, Black, Pair

Part Number: HOK-8525-3HKR

4.44 out of 5 stars ( 9 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

• Free Shipping

Headers, Dragster Downsweep, 3-Step Primary, 4.5 in. Collector, Stainless Steel, Polished, Big Block, Chevrolet, Pair

Part Number: HOK-2502-2HKR

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

• Free Shipping

Exhaust Manifolds, Cast Iron, Black Ceramic Coated, Chevy, Small Block LS, Kit

Part Number: HOK-8502-3HKR

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

• Free Shipping

Muffler, American Thunder 40 Series, 2 1/4 in. Inlet/2 1/4 in. Outlet, Steel, Black, Each

Part Number: FLO-42441

4.88 out of 5 stars ( 32 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Muffler, 40 Series, 2 1/2 in. Offset Inlet, 2 1/2 in. Offset Outlet, Chambered, Steel, Black, Each

Part Number: FLO-42543

4.9 out of 5 stars ( 42 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

GM LS Turbo Exhaust Manifolds (except LS7 & LS9) - Natural Cast Finish

Part Number: HOK-8510HKR

4.18 out of 5 stars ( 11 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

• Free Shipping

Muffler, Delta Flow 50 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-842553

4.63 out of 5 stars ( 19 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

• Free Shipping

Headers, LS Turbo Header, Forward and Up, Stainless Steel, Natural, 1 7/8 in. Chevy, LS, Pair

Part Number: BIG-11537FLT

3.86 out of 5 stars ( 7 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

• Free Shipping

Exhaust System, Cat-back, FlowFX, 409 Stainless Steel, Single Exit, Chevrolet, GMC, Kit

Part Number: FLO-717873

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

• Free Shipping

Muffler, Delta Flow 50 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-842551

4.52 out of 5 stars ( 23 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

• Free Shipping

Muffler, FlowFX Series, 2.5 in. Inlet/2.5 in. Outlet, Stainless Steel, Natural, Each

Part Number: FLO-71236

4.8 out of 5 stars ( 25 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Exhaust Sys, Blackheart, Axle-Back, Center Rear, Stainless Steel, Natural, with Turbo Mufflers/Quad Tips, Chevrolet, Kit

Part Number: HOK-70401343RHKR

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

• Free Shipping

Exhaust Manifolds, High Silicon Ductile Iron, Black Ceramic Coated, Chevy, LS Series Engines, Pair

Part Number: HOK-8501-3HKR

4.67 out of 5 stars ( 9 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

• Free Shipping

Exhaust, American Thunder, CatBack, Steel, Aluminized, Pol. Tips, Chevy, GMC, Pickup, 4.8, 5.3L, Kit

Part Number: FLO-17395

4.83 out of 5 stars ( 12 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

• Free Shipping

Muffler, Super 40 Series, 3 in. Inlet/3 in. Outlet, Steel, Black, Each

Part Number: FLO-953045

5.0 out of 5 stars ( 13 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

• Free Shipping

Muffler, Super 44 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-942546

4.65 out of 5 stars ( 52 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

• Free Shipping

Muffler, Delta Flow 50 Series, 3 in. Inlet/3 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-843051

4.78 out of 5 stars ( 18 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

• Free Shipping

Exhaust Manifold, Blackheart LS Swap, Cast Iron, Natural, Rear Dump, Universal, Pair

Part Number: HOK-8505HKR

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

• Free Shipping