Long Tube Header for 1996-2004 Ford Mustang GT V8 4.6L SOHC

Flashark Long Tube Header for Ford Mustang GT V8 4.6L SOHC

Give your compatible New Edge or SN95 Mustang a stronger exhaust foundation with a long tube header setup built for better flow, a deeper V8 tone, and future bolt-on upgrades. This Flashark long tube header kit is designed for select 1996-2004 Ford Mustang GT models equipped with the 4.6L V8 SOHC engine, with important exclusions listed below before purchase.

Compared with the factory exhaust manifolds, these headers are designed to help reduce exhaust restriction and improve exhaust scavenging. The setup is a good match for Mustang GT owners who want a more responsive 4.6L 2V platform without jumping straight into a full engine build.

Specifications

Key Features

• Long tube layout: Helps improve exhaust flow compared with restrictive factory-style exhaust routing.
• 304 stainless steel construction: Built for heat, exhaust gas, and long-term use in a performance environment.
• TIG welded joints: Clean weld construction for strength and durability.
• CNC-machined flanges: Helps support a flatter sealing surface when installed correctly.
• Polished finish: Gives the engine bay and underside a cleaner performance look.
• Budget-friendly performance path: A practical upgrade for Mustang owners building around headers, mid-pipe, cat-back, intake, and tune.

Who This Header Kit Is For

This kit is aimed at Mustang GT owners who already know they want the benefits and trade-offs of long tube headers. If you are building a street/strip car, replacing tired factory exhaust parts, or planning a fuller exhaust setup later, this is the kind of part that makes sense.

• Owners of compatible Ford Mustang GT models with the 4.6L SOHC V8 engine.
• Drivers looking for more exhaust flow than the factory manifold-style setup.
• Mustang owners who want a deeper, sharper V8 exhaust note.
• Budget-minded builders upgrading in stages with headers, mid-pipe, cat-back, intake, and tune.
• DIY-capable buyers who understand that long tube installation can take time, patience, and proper tools.
• Not ideal for buyers who want a guaranteed emissions-compliant street setup or a no-check-needed install.

Why Upgrade the Factory Exhaust Manifold Setup?

The stock exhaust side on an older 4.6L Mustang GT is not exactly built for easy breathing. Factory-style manifolds are compact and quiet, but they can hold the engine back once you start chasing stronger exhaust flow and a more aggressive sound. Long tube headers help move exhaust gases out of the cylinders more efficiently, especially when paired with the right mid-pipe and cat-back setup.

Old bolts, heat cycles, tired gaskets, rust, and past exhaust work can also make the factory area messy. A header upgrade is not just about noise. For a lot of builders, it is part of cleaning up the exhaust path and getting the car ready for future upgrades.

Long Tube vs Shorty Headers

For this Mustang GT 4.6L application, the long tube route makes more sense when sound, flow, and future performance upgrades matter more than keeping everything as close to stock as possible.

Expected Performance Gains

On a healthy 4.6L SOHC Mustang GT, a well-matched long tube header setup can commonly support an estimated 8-15 horsepower gain, with stronger results possible when paired with a compatible mid-pipe, freer-flowing cat-back exhaust, intake upgrades, and proper tuning.

The real gain depends on the full setup, not the headers alone. Engine condition, exhaust restriction, tune quality, fuel quality, installation, and supporting modifications all affect the final result. For most Mustang GT owners, the bigger difference is not just the number on paper—it is the stronger exhaust pull, sharper throttle response, and deeper V8 tone after the exhaust path is opened up.

Why Buy From Flashark?

Flashark focuses on practical performance parts for owners who want a cleaner upgrade path without overpaying for every supporting piece. This header kit gives Mustang GT owners a budget-friendly way to improve exhaust flow while keeping fitment guidance, product options, and support in one place.

• Clear fitment guidance: Vehicle year, model, engine, and exclusions should be checked before purchase.
• Performance-focused layout: Long tube design for buyers who want more than a stock-style replacement.
• Useful product support: Contact support if you are unsure about fitment before ordering.
• Budget-friendly build path: Works well for staged Mustang exhaust upgrades when matched with the right supporting parts.

Shipping, Warranty & Customer Support

• Estimated Delivery: Most orders are delivered within 7-9 business days after shipment, depending on warehouse availability and destination.
• 1-Year Warranty: This product is backed by a 1-year warranty against manufacturing defects.
• Returns & Fitment Support: Please confirm your vehicle year, model, engine, and drivetrain before ordering. If you are unsure about fitment, contact customer support before purchase.
• Customer Support: Our support team can help with basic fitment questions, order issues, and warranty-related support.