aFe Twisted Steel 304SS Long Tube Headers – 2020+ Chevrolet Corvette C8 6.2L V8 | Titanium Cerakote Exterior / Copper Ceramic Interior | Tri-Y Design | +24HP / +17 lb-ft

The aFe Twisted Steel 304SS Long Tube Headers for the 2020+ Chevrolet Corvette C8 6.2L V8 are a complete long tube header system engineered specifically for the mid-engine C8 Corvette's LT2 V8 — delivering measured gains of up to +24HP and +17 lb-ft of torque as measured on aFe's in-house dyno. Constructed from 1-7/8" to 2-1/8" to 2-3/4" mandrel-bent 304 stainless steel tubing with a Tri-Y design, Titanium Color Cerakote exterior coating, and Copper Ceramic interior coating, these headers are a complete bolt-on performance upgrade that retains all factory sensors and is compatible with the factory catalytic converters. Specifically recommended for C8 convertible applications where the top is stored over the engine compartment. aFe Power is one of the most respected performance exhaust and intake brands in the North American aftermarket.

Key Features:

• +24HP / +17 lb-ft — measured gains of up to +24 horsepower and +17 lb-ft of torque as measured on aFe's in-house dyno on the 2020+ C8 Corvette 6.2L V8
• Tri-Y design — Tri-Y header design with optimized tube lengths and specifically tuned paired opposite firing cylinders — improves cylinder scavenging, exhaust flow, and performance across the RPM range
• Stepped 304SS tubing — 1-7/8" primary tubes stepping to 2-1/8" and then 2-3/4" collector — mandrel-bent 304 stainless steel for maximum strength, durability, and corrosion resistance
• Titanium Color Cerakote exterior — Titanium Color Cerakote ceramic coating on the outside of the headers — reduces outside surface temperature and reduces engine compartment temperatures by up to 46% compared to non-coated headers
• Copper Ceramic interior coating — Copper Ceramic coating on the inside of the headers — improves exhaust gas flow and heat retention within the header tubes for improved scavenging efficiency
• 46% cooler surface temperatures — the Cerakote/Copper Ceramic coating combination reduces engine compartment temperatures by as much as 46% vs. non-coated headers — a critical benefit for the C8 convertible where the top is stored over the engine compartment
• TIG welded inlet ports — TIG welded inlet ports for strength, eliminating flange warpage, and improved exhaust flow at the cylinder head interface
• Factory-style laser cut 304SS flanges — laser cut 304 stainless steel flanges for a secure, leak-free seal at the cylinder head
• Auxiliary O2 bung — includes an auxiliary O2 bung and plug for a wide-band O2 sensor or other instrumentation
• Factory sensor retention — designed to retain all factory sensors — no sensor relocation or modification required
• Factory cat compatible — compatible with the factory catalytic converters for a complete bolt-on installation without requiring aftermarket cats or a catless configuration
• Direct bolt-on — no cutting or modifications required — includes manifold bolts and factory gaskets for a direct bolt-on installation
• Convertible recommended — specifically recommended for C8 convertible applications where the convertible top is stored over the engine compartment — the Cerakote coating's heat reduction is particularly beneficial in this application

Tri-Y Design — Why It Outperforms 4-into-1:

The aFe Twisted Steel headers use a Tri-Y (4-into-2-into-1) design rather than a conventional 4-into-1 design. In a Tri-Y design, the four primary tubes are paired by firing order — opposite firing cylinders are paired together — before merging into a single collector. This pairing takes advantage of the exhaust pulse timing between opposite firing cylinders to improve cylinder scavenging — the exhaust pulse from one cylinder creates a low-pressure wave that helps pull exhaust gases from the paired cylinder. The result is improved exhaust flow and improved cylinder scavenging across a broader RPM range than a conventional 4-into-1 design, which is optimized for a narrower peak power band. For a street and track performance application like the C8 Corvette, the Tri-Y design's broader power delivery is the correct engineering choice.

Cerakote + Copper Ceramic Coating — The Thermal Advantage:

The aFe Twisted Steel headers use a dual-coating system — Titanium Color Cerakote on the exterior and Copper Ceramic on the interior. The exterior Cerakote coating reduces radiant heat from the header surface into the engine compartment — reducing engine compartment temperatures by up to 46% compared to non-coated headers. This is particularly significant for the C8 Corvette convertible, where the convertible top is stored in a compartment directly above the mid-mounted engine — reducing engine compartment heat protects the convertible top mechanism and surrounding components. The interior Copper Ceramic coating improves exhaust gas flow and retains heat within the header tubes — keeping exhaust gases hotter and moving faster for improved scavenging efficiency.

Specifications:

• Brand: aFe Power
• Part Number: AFE48-34148-T
• Barcode: 48-34148-T
• Design: Tri-Y (4-into-2-into-1)
• Primary Tube Diameter: 1-7/8"
• Secondary Tube Diameter: 2-1/8"
• Collector Diameter: 2-3/4"
• Material: 304 stainless steel — mandrel bent
• Exterior Coating: Titanium Color Cerakote
• Interior Coating: Copper Ceramic
• Flanges: Factory-style laser cut 304SS
• Inlet Ports: TIG welded
• O2 Bung: Auxiliary O2 bung and plug included
• Power Gain: Up to +24HP / +17 lb-ft (dyno measured)
• Surface Temp Reduction: Up to 46% vs. non-coated
• Application: 2020+ Chevrolet Corvette C8 — 6.2L V8 (LT2)
• Weight: 29.4 lbs (shipping weight)

Fitment Information:

• 2020+ Chevrolet Corvette C8 — 6.2L V8 (LT2) — Stingray — Coupe and Convertible
• Compatible with factory catalytic converters — no aftermarket cats required
• Retains all factory sensors — no sensor relocation required
• Direct bolt-on — no cutting or modifications required
• Note: Specifically recommended for C8 convertible applications. Professional installation by an experienced exhaust specialist strongly recommended. A four-wheel alignment is not required, but verify correct header clearance from surrounding components after installation. Check for exhaust leaks after installation and after the first heat cycle.

What's Included:

• aFe Twisted Steel 304SS long tube header set — Titanium Cerakote / Copper Ceramic (AFE48-34148-T)
• Manifold bolts
• Factory-style gaskets
• Auxiliary O2 bung and plug
• Refer to aFe's product documentation for complete kit contents

Installation Notes:

• Professional installation by an experienced exhaust specialist strongly recommended — long tube header installation on the C8 Corvette requires correct torque at the cylinder head flanges, correct O2 sensor installation, and verification of no exhaust leaks before driving
• Apply anti-seize compound to all exhaust fasteners — exhaust fasteners are subject to extreme heat cycling and will seize without anti-seize
• Check for exhaust leaks at all flange connections after installation and after the first heat cycle — thermal expansion can affect flange sealing on initial use
• Verify correct clearance between the headers and surrounding components after installation — the headers must not contact wiring, hoses, or chassis components
• A tune update is not required for the aFe headers on an otherwise stock C8 — the factory ECU will adapt. For modified C8s with an aftermarket tune, consult your tuner regarding any calibration updates that may benefit from the improved exhaust flow.

Why aFe Power?

aFe Power is one of the most respected performance exhaust and intake brands in the North American aftermarket — known for their cold air intakes, exhaust systems, headers, and performance components for a wide range of domestic and import performance platforms. aFe's Twisted Steel header lineup is the result of extensive dyno development — the +24HP and +17 lb-ft gains are measured results on aFe's in-house dyno, not estimates. For C8 Corvette owners who want a quality long tube header system with proven dyno-measured power gains, Tri-Y engineering, and Cerakote thermal protection from a brand with proven performance exhaust credentials, aFe Twisted Steel is the correct choice.

Perfect For:

• 2020+ Chevrolet Corvette C8 6.2L V8 owners who want measured bolt-on power gains (+24HP / +17 lb-ft) from a Tri-Y 304SS long tube header system with Titanium Cerakote and Copper Ceramic coating
• C8 Corvette convertible owners where the Cerakote coating's 46% surface temperature reduction is particularly beneficial for protecting the convertible top mechanism and surrounding components
• C8 builds where the aFe Twisted Steel headers are the exhaust foundation — paired with an aFe intake, cat-back exhaust, and supporting modifications for a complete C8 performance build
• Owners who want a direct bolt-on header system that retains factory sensors and factory catalytic converters for a clean, emissions-compatible installation

Note: Specifically recommended for C8 convertible applications. Direct bolt-on — no cutting or modifications required. Factory sensors and cats retained. Apply anti-seize to all exhaust fasteners. Check for exhaust leaks after installation and first heat cycle. Tune update not required on stock C8 — consult tuner for modified applications.