{"product_id":"ramjet-mustang-gt-1-3-4-headers-cats-2015-2023","title":"Ramjet Mustang GT Headers \u0026 Cats 2015-2023- 1 3\/4\"","description":"\u003cp\u003eThe \u003cstrong\u003eRamjet Mustang GT 1¾\" Headers \u0026amp; Cats\u003c\/strong\u003e is a true equal-length, long-tube header and high-flow cat system for the \u003cstrong\u003eFord Mustang GT 5.0L Coyote V8 (2015–2023)\u003c\/strong\u003e. 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. \u003cstrong\u003eDoes not fit S650 (2024+).\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003eSpecifications at a glance\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Ford Mustang GT 5.0L Coyote V8 — 2015–2017 \u0026amp; 2018–2023 (does NOT fit S650 \/ 2024+)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem type:\u003c\/strong\u003e Long-tube headers + high-flow cats\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeader design:\u003c\/strong\u003e Equal-length, 1¾\" primaries\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCat options:\u003c\/strong\u003e 100-cell metal, or 200-cell ceramic (forced-induction engines only)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCat-back compatibility:\u003c\/strong\u003e Bolts to factory cat-back with optional connector pipes (select at checkout)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuits:\u003c\/strong\u003e Naturally aspirated and forced-induction builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eWhy Choose Equal-Length Headers?\u003c\/h4\u003e\n\u003cp\u003eEqual-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.\u003c\/p\u003e\n\u003ch4\u003eRamjet Mustang 1¾\" Headers \u0026amp; High-Flow Cats\u003c\/h4\u003e\n\u003cp\u003eBuilt 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.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1¾\" long-tube headers — equal-length runners improve flow and pulse balance\u003c\/li\u003e\n\u003cli\u003e304 stainless steel construction — handles extreme heat and resists corrosion\u003c\/li\u003e\n\u003cli\u003eHigh-flow catalytic converters — more power while remaining street friendly\u003c\/li\u003e\n\u003cli\u003eFactory-compatible fitment — optional connector pipes allow use of the factory cat-back\u003c\/li\u003e\n\u003cli\u003eMore torque, more horsepower and a sharper, race-inspired exhaust tone\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eWill these fit my Mustang?\u003c\/strong\u003e They fit the Ford Mustang GT 5.0L Coyote V8 from 2015–2023. They do \u003cstrong\u003enot\u003c\/strong\u003e fit the S650 (2024+).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1¾\" vs the double-step headers — which should I choose?\u003c\/strong\u003e 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.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need connector pipes?\u003c\/strong\u003e Optional connector pipes let the headers bolt directly to your factory cat-back. Choose your option at checkout.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMetal or ceramic cats?\u003c\/strong\u003e 100-cell metal suits most naturally aspirated builds; 200-cell ceramic is recommended for forced-induction engines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need a tune?\u003c\/strong\u003e Recommended to realise the full gains, but not required for fitment.\u003c\/p\u003e\n\u003cdiv style=\"border:1px solid #e0e0e0;border-radius:8px;padding:14px 16px;margin:18px 0 0;font-size:14px;line-height:1.7\"\u003e💳 \u003cstrong\u003ePay in 4 with Afterpay\u003c\/strong\u003e — 4 interest-free instalments at checkout (eligible orders)\u003cbr\u003e🚚 \u003cstrong\u003eShipping\u003c\/strong\u003e calculated at checkout — ships Australia-wide \u0026amp; worldwide\u003cbr\u003e↩️ \u003cstrong\u003e7-day returns\u003c\/strong\u003e on unopened items\u003cbr\u003e📞 \u003cstrong\u003eNot sure if it fits?\u003c\/strong\u003e Call \u003ca href=\"tel:+61452071148\"\u003e+61 452 071 148\u003c\/a\u003e or \u003ca href=\"tel:+61397466656\"\u003e(03) 9746 6656\u003c\/a\u003e — talk to the team who builds these.\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Will these fit my Mustang?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"They fit the Ford Mustang GT 5.0L Coyote V8 from 2015-2023. They do not fit the S650 (2024+).\"}},{\"@type\":\"Question\",\"name\":\"1 3\/4 inch vs the double-step headers - which should I choose?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The 1 3\/4 inch is an excellent all-round choice for NA and forced-induction builds. Step up to the double-stepped 1 3\/4 inch to 1 7\/8 inch headers if you are chasing maximum flow on a high-horsepower build.\"}},{\"@type\":\"Question\",\"name\":\"Do I need connector pipes?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Optional connector pipes let the headers bolt directly to your factory cat-back. Choose your option at checkout.\"}},{\"@type\":\"Question\",\"name\":\"Metal or ceramic cats?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"100-cell metal suits most naturally aspirated builds; 200-cell ceramic is recommended for forced-induction engines.\"}},{\"@type\":\"Question\",\"name\":\"Do I need a tune?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Recommended to realise the full gains, but not required for fitment.\"}}]}\u003c\/script\u003e","brand":"Ramjet Performance Parts","offers":[{"title":"2015-2017 \/ Standard (Connector Pipes Are Needed +$258) \/ 100 Cell Metal","offer_id":51606532129089,"sku":null,"price":1548.0,"currency_code":"AUD","in_stock":true},{"title":"2015-2017 \/ Standard (Connector Pipes Are Needed +$258) \/ 200 Cell Ceramic (Forced Induction Engines Only) +($99)","offer_id":51609921782081,"sku":null,"price":1647.0,"currency_code":"AUD","in_stock":true},{"title":"2015-2017 \/ I will be making my own connector pipes to my catback \/ 100 Cell Metal","offer_id":51606532161857,"sku":null,"price":1290.0,"currency_code":"AUD","in_stock":true},{"title":"2015-2017 \/ I will be making my own connector pipes to my catback \/ 200 Cell Ceramic (Forced Induction Engines Only) +($99)","offer_id":51609921814849,"sku":null,"price":1389.0,"currency_code":"AUD","in_stock":true},{"title":"2018-2023 \/ Standard (Connector Pipes Are Needed +$258) \/ 100 Cell Metal","offer_id":51606532194625,"sku":null,"price":1548.0,"currency_code":"AUD","in_stock":true},{"title":"2018-2023 \/ Standard (Connector Pipes Are Needed +$258) \/ 200 Cell Ceramic (Forced Induction Engines Only) +($99)","offer_id":51609921847617,"sku":null,"price":1647.0,"currency_code":"AUD","in_stock":true},{"title":"2018-2023 \/ I will be making my own connector pipes to my catback \/ 100 Cell Metal","offer_id":51606532227393,"sku":null,"price":1290.0,"currency_code":"AUD","in_stock":true},{"title":"2018-2023 \/ I will be making my own connector pipes to my catback \/ 200 Cell Ceramic (Forced Induction Engines Only) +($99)","offer_id":51609921880385,"sku":null,"price":1389.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/2805\/7153\/files\/Untitleddesign_79.png?v=1773623600","url":"https:\/\/ramjetperformanceparts.com\/products\/ramjet-mustang-gt-1-3-4-headers-cats-2015-2023","provider":"Ramjet Performance Parts","version":"1.0","type":"link"}