Ramjet 1 3/4-inch equal-length long-tube headers and cats for the 2015-2023 Mustang GT Coyote V8
Description
The Ramjet Mustang GT 1¾" Headers & Cats is a true equal-length, long-tube header and high-flow cat system for the Ford Mustang GT 5.0L Coyote V8 (2015–2023). The 1¾" primary size balances exhaust velocity and airflow for both naturally aspirated and forced-induction setups, improving scavenging for stronger torque, more horsepower and a deeper, sharper exhaust note. Built from premium 304 stainless steel. Does not fit S650 (2024+).
Specifications at a glance
- Fits: Ford Mustang GT 5.0L Coyote V8 — 2015–2017 & 2018–2023 (does NOT fit S650 / 2024+)
- System type: Long-tube headers + high-flow cats
- Header design: Equal-length, 1¾" primaries
- Material: 304 stainless steel
- Cat options: 100-cell metal, or 200-cell ceramic (forced-induction engines only)
- Cat-back compatibility: Bolts to factory cat-back with optional connector pipes (select at checkout)
- Suits: Naturally aspirated and forced-induction builds
Why Choose Equal-Length Headers?
Equal-length headers help your engine breathe properly. Each cylinder’s exhaust travels the same distance before reaching the collector, keeping exhaust pulses evenly spaced. That balance improves scavenging, reduces backpressure and helps the engine make more efficient power — better throttle response, stronger top-end performance and a cleaner, sharper exhaust note instead of a messy or uneven sound.
Ramjet Mustang 1¾" Headers & High-Flow Cats
Built from premium 304 stainless steel with a true equal-length design and long primary runners, these headers improve exhaust scavenging and performance throughout the rev range for stronger torque, improved horsepower and a deeper, more aggressive note. The 1¾" primary size works well for both naturally aspirated and forced-induction setups. Included high-flow catalytic converters increase performance while staying street friendly, and with optional connector pipes the setup bolts directly to the factory cat-back.
Key Features
- 1¾" long-tube headers — equal-length runners improve flow and pulse balance
- 304 stainless steel construction — handles extreme heat and resists corrosion
- High-flow catalytic converters — more power while remaining street friendly
- Factory-compatible fitment — optional connector pipes allow use of the factory cat-back
- More torque, more horsepower and a sharper, race-inspired exhaust tone
Frequently Asked Questions
Will these fit my Mustang? They fit the Ford Mustang GT 5.0L Coyote V8 from 2015–2023. They do not fit the S650 (2024+).
1¾" vs the double-step headers — which should I choose? The 1¾" is an excellent all-round choice for NA and forced-induction builds. Step up to the double-stepped 1¾"→1⅞" headers if you’re chasing maximum flow on a high-horsepower build.
Do I need connector pipes? Optional connector pipes let the headers bolt directly to your factory cat-back. Choose your option at checkout.
Metal or ceramic cats? 100-cell metal suits most naturally aspirated builds; 200-cell ceramic is recommended for forced-induction engines.
Do I need a tune? Recommended to realise the full gains, but not required for fitment.
🚚 Shipping calculated at checkout — ships Australia-wide & worldwide
↩️ 7-day returns on unopened items
📞 Not sure if it fits? Call +61 452 071 148 or (03) 9746 6656 — talk to the team who builds these.
Product information
Watch The Ramjet Double Step Hit The Dyno!
PRODUCT FEATURES
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F.A.Q.
They appreciate cut and details, things that aren't so obvious.
What comes in the box?
•2x Double Stepped Headers
• 2x Ramjet High Flow Catalytic Converters
• Cat Gaskets & Bolts Included
Who can install the exhaust?
For the best results, we recommend having the exhaust fitted by a professional exhaust or performance workshop.
Which Mustang models will this fit?
-S550 Mustang GT (2015–2023)
How To Return My Items?
Returns Policy
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, please Contact Us with your order number and details about the product you would like to return. We will respond quickly with instructions for how to return items from your order.
If by negotiation items are accepted to be returned after the 7 day return policy a 20% handling & restocking fee will apply