Pacemaker Twin 2.5" Performance Exhaust System with Headers for Ford Mustang GT S550 Fastback Coupe 5.0L V8 2015–2017 RHD - PP4178-03

Pacemaker Full Twin 2.5" Performance Exhaust System with Headers & Hi-Flow Cats for Ford Mustang GT Coupe (5.0L Coyote V8) - PP4178-03

Unleash an uncompromised, aggressive American muscle roar and unlock substantial power gains from your high-revving quad-cam engine with the Pacemaker Sport Systems complete twin 2.5-inch performance exhaust solution. Specifically engineered to maximize cylinder scavenging, optimize exhaust gas velocity, and satisfy the tight architectural boundaries of the global S550 fastback platform, this premium system is precisely shaped to map the underbody layout and multi-link independent rear suspension geometry of the Ford Mustang Fastback Coupe. By upgrading your stock layout to race-proven performance extractors paired with mandrel-bent twin 2.5" plumbing and high-flow metallic catalytic converters, it maximizes exhaust gas scavenging to completely eliminate power-robbing backpressure under heavy acceleration. As Australia’s premium exhaust innovator, Pacemaker integrates elite structural engineering with patented V-Tex technology and signature double-skinned mufflers, delivering a commanding, throaty performance bark on throttle while actively engineering out harsh, intrusive cabin boom or highway drone. Note: Fits Right-Hand Drive (RHD) Ford Mustang GT Fastback Coupe models (2015–2017) equipped with the 5.0L Coyote V8 engine configuration; does not fit Convertible models due to under-car structural cross-bracing paths unique to soft-tops.

Features:

Precision-manufactured in Australia to deliver a high-velocity flow upgrade, maximum structural longevity under intense heat, and a refined muscle car acoustic profile for the iconic RHD Mustang fastback platform.

• Complete Headers & Full System: Comprehensive track-and-street performance solution incorporating high-flow primary headers, 3" metallic high-flow catalytic converters, and a matching twin 2.5-inch performance cat-back system layout.
• Fastback Coupe Optimized: Custom engineered to clear the floor pan configurations, standard chassis tunnels, and factory hanger geometries of the fixed-roof fastback coupe layout.
• Premium Materials: Constructed completely from durable, heavy-gauge Exhaust Grade 409 Stainless Steel to ensure superior resistance to thermal fatigue and rust.
• Mandrel Bent Tubing: Rigid twin 2.5" (63.5mm) pipe structure guarantees a smooth, uniform internal diameter through all bends to eliminate gas turbulence and maximize flow velocity.
• V-Tex Technology: Advanced internal patented anti-drone configuration cancels out harsh, low-frequency cabin resonance typical of sports coupes without restricting gas velocity.
• Signature Mufflers: Heavy-duty double-skinned 409 Stainless Steel mufflers offer premium case reinforcement, preventing case distortion and internal packing blowout under extreme load.
• Right-Hand Drive Optimized: Specifically mapped and cleared to fit Right-Hand Drive (RHD) configurations seamlessly around steering linkages and factory components.

Important Fitment Notes:

• Specifically engineered to fit Ford Mustang S550 GT Fastback Coupe models powered by the 5.0L Coyote V8 engine configuration (2015–2017 models).
• Coupe Specific Layout: This system features specific piping clearances and bracket mapping designed precisely to mount under the fastback coupe chassis path. It will not adapt cleanly to Convertible variants because it does not feature the necessary underbody relief routes to clear the additional soft-top chassis reinforcement cross-braces.
• Right-Hand Drive Only: Header primary routing and collector path geometry are exclusively mapped to navigate around standard factory RHD steering gears and engine bay constraints. Will not fit imported Left-Hand Drive (LHD) models.
• Full kit scope: Comprehensive track-and-street performance solution from engine block to rear exit, including tuned primary headers, high-flow metallic catalytic converters, twin 2.5" intermediate sections, and signature double-skinned rear twin mufflers with polished exit tips.
• Professional automotive performance technician installation is highly recommended to guarantee ideal ground clearance, strict steering column alignment, and gas-tight seals under the floor pan.

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