SKU: 226395187

Pacemaker Twin 3" Performance Exhaust System with Headers for Ford Mustang GT S550 Convertible 5.0L V8 2015–2017 RHD - PP4178-54

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Description

Pacemaker Twin 3" Performance Exhaust System with Headers for Ford Mustang GT S550 Convertible 5.0L V8 2015–2017 RHD - PP4178-54Pacemaker Full Twin 3" Performance Exhaust System with Headers & Hi Flow Cats for Ford Mustang GT Convertible (5. 0L Coyote V8) PP4178 54 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 3 inch performance exhaust solution. Specifically engineered to satisfy the immense flow requirements, high velocity gas volume, and

Pacemaker Full Twin 3" Performance Exhaust System with Headers & Hi-Flow Cats for Ford Mustang GT Convertible (5.0L Coyote V8) - PP4178-54

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 3-inch performance exhaust solution. Specifically engineered to satisfy the immense flow requirements, high-velocity gas volume, and unique chassis configurations of the iconic S550 platform, this premium system is precisely shaped to map the specific structural underbody bracing lines of the factory Ford Mustang Convertible. By upgrading your stock layout to race-proven performance extractors paired with large-diameter, mandrel-bent twin 3" 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 typical of convertible cabins. Note: Fits Right-Hand Drive (RHD) Ford Mustang GT Convertible models (2015–2017) equipped with the 5.0L Coyote V8 engine configuration; does not fit Fastback models due to convertible-specific chassis reinforcement paths.

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 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 3-inch performance cat-back system.
  • Convertible-Specific Clearances: Custom engineered to route flawlessly around the additional under-car chassis strengthening cross-bracing unique to the soft-top convertible.
  • 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 3" (76.2mm) pipe structure guarantees a smooth, uniform internal diameter through all bends to eliminate gas turbulence.
  • V-Tex Technology: Advanced internal patented anti-drone configuration cancels out harsh, low-frequency cabin resonance typical of open-air convertibles 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.
Product Specifications for PP4178-54
Brand Pacemaker Sport Systems Part # / SKU PP4178-54
Product Type Full Tuned Exhaust & Header Kit System Piping Size Twin 3" (76.2mm) Mandrel-Bent System
Material 409 Grade Stainless Steel Catalytic Converter 3" High-Flow Metallic Converters Section
Engine Compatibility 5.0L Coyote DOHC V8 (Gen 2) Steering Drive Alignment Right-Hand Drive (RHD) Only

Important Fitment Notes:

  • Specifically engineered to fit Ford Mustang S550 GT Convertible models powered by the 5.0L Coyote V8 engine configuration (2015–2017 models).
  • Convertible Specific Layout Constraints: Mustang Convertibles feature extensive cross-bracing under the vehicle center floor pan to maintain structural rigidity. This kit features specific piping bends and modified intermediate paths to completely clear these factory braces without rubbing. It will not align properly with standard Fastback variants.
  • Right-Hand Drive Only: Header primary routing is exclusively mapped to navigate around standard factory RHD steering gear configurations. 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, intermediate tubing, and signature double-skinned rear twin mufflers.
  • Professional automotive performance technician installation is highly recommended to guarantee perfect clearance around convertible bracing, correct steering link alignment, and strict gas-tight seals.

Vehicle Applications:

Make Model From To Body Series Engine Variant Drivetrain
FORD MOTOR COMPANY
Ford Mustang GT 2015 2017 Convertible Only S550 (Pre-Facelift) 5.0L Coyote V8 GT Premium RHD Models RWD
Warranty Information
Product Warranty Period
Pacemaker Sports Exhaust Systems Five (5) years.

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SKU: 226395187

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Angela K. Lacey
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★★★★★ 5
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Reviewed in the United States on May 5, 2026
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Reviewed in the United States on January 9, 2026
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Steve_T_USA
Battle Creek, US
★★★★★ 5
Comfortable, warm enough. Feels a bit like a shawl but looks like a good sweater.
I like the color and the fit is good, roomy, feels a bit like a shawl but holds shape and hides a few extra pounds. The zipper is thin but whether you'll find it good enough to last I wouldn't know yet. I'm keeping this.
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Reviewed in the United States on January 20, 2026
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Neodymium Bean
Draper, US
★★★★★ 3
Comfortable, well put together, nice material, size chart is way off.
Color: Black, Size: 3X-Large
A well put together sweater that is made with very soft yarn, and doesn't seem to have any major structural issues. The zipper works great and the stitching looks like there's not major flaws. The only big issue is the 3XL sweater I got is way off size wise. Oversized sweaters are great, so I was excited about getting this for me to use for day to day wear, and my wife (who is a lot smaller than me) to steal when she's watching tv on the couch or sitting outside, so the disappointment was palatable. Sadly the 3XL size is about the same size as XL sweaters in the closet, where as a few 2xl sweaters we recently ordered from another company are a lot larger than this one. Outside of the major size discrepancy, which could be a major deal breaker for some, the sweater itself is really comfy and really nice. Sadly 3XL is the largest size we could get on the chart.
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Reviewed in the United States on January 7, 2024
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TSmith
Boise, US
★★★★★ 5
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Beautiful, and well made front zipper sweater. I purchased 7 for Christmas and the men in my family loved the soft feel of the fabric. They were true to size..
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Reviewed in the United States on January 5, 2026

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