SKU: 91401067974

Pacemaker 3" Cat-Back Performance Exhaust System for Ford Mustang GT S550 Convertible 5.0L V8 2015–2017 - PP4178-52

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Description

Pacemaker 3" Cat-Back Performance Exhaust System for Ford Mustang GT S550 Convertible 5.0L V8 2015–2017 - PP4178-52Pacemaker Heavy Duty 3" Performance Cat Back Exhaust System for Ford Mustang GT Convertible (5. 0L Coyote V8) PP4178 52 Unleash a deep, aggressive American muscle growl and unlock massive flow capacity from your high revving quad cam engine with the Pacemaker Sport Systems heavy duty large bore 3" performance cat back exhaust solution. Specifically engineered to maximize scavenging efficiency and satisfy the high velocity gas volume demands of the

Pacemaker Heavy-Duty 3" Performance Cat-Back Exhaust System for Ford Mustang GT Convertible (5.0L Coyote V8) - PP4178-52

Unleash a deep, aggressive American muscle growl and unlock massive flow capacity from your high-revving quad-cam engine with the Pacemaker Sport Systems heavy-duty large-bore 3" performance cat-back exhaust solution. Specifically engineered to maximize scavenging efficiency and satisfy the high-velocity gas volume demands of the iconic 5.0L Coyote V8, this premium system is precision-molded to clear the specific underbody bracing lines and structural layouts unique to the S550 soft-top architecture. By replacing your stock, restrictive factory plumbing with a high-volume mandrel-bent performance construction downstream of the catalytic converters, it optimizes gas velocity to clear spent exhaust out rapidly and completely eliminate power-robbing backpressure under acceleration. As Australia’s premium exhaust innovator, Pacemaker pairs this high-flow path with patented V-Tex technology and signature double-skinned mufflers to deliver a raw, thumping muscle car sound outside while actively engineering out harsh, intrusive interior cabin boom or open-air highway drone typical of convertible cabins. Note: Fits Ford Mustang GT S550 Convertible models (2015–2017) equipped with the 5.0L Coyote V8 engine configuration; engineered with optimized global clearance metrics to suit both Left-Hand Drive (LHD) and Right-Hand Drive (RHD) configurations.

Features:

Precision-manufactured in Australia to deliver a premium flow upgrade, exceptional structural durability under high heat, and a refined performance acoustic profile for the global Mustang GT platform.

  • True 3" Cat-Back Section: Complete high-volume performance intermediate plumbing and rear muffler layout engineered to bolt up securely behind your factory or high-flow catalytic converters.
  • Convertible-Specific Clearances: Custom engineered to route flawlessly around the additional under-car chassis strengthening cross-bracing unique to the soft-top convertible floor pan.
  • Dual Drive Layout Compatible: Precision-cleared underbody routing architecture engineered explicitly to accommodate both Left-Hand Drive (LHD) and Right-Hand Drive (RHD) chassis variations.
  • Premium Materials: Constructed completely from durable, heavy-gauge Exhaust Grade 409 Stainless Steel to ensure superior structural longevity under intense thermal stress.
  • Mandrel Bent Tubing: Rigid large-bore 3" (76.2mm) pipe structure guarantees a smooth, uniform internal diameter through all bends to optimize exhaust gas velocity and prevent restriction.
  • V-Tex Technology: Advanced internal anti-drone configuration filters out harsh, low-frequency cabin resonance typical of open convertible cabins without creating any power-robbing flow restrictions.
  • Signature Mufflers: Heavy-duty double-skinned 409 Stainless Steel mufflers offer premium outer case protection, zero internal packing blowout under high thermal stress, and precise tonal control.
  • Direct Bolt-On Layout: Engineered as a comprehensive, vehicle-specific full bolt-up kit that mounts directly onto existing factory rubber hanger positions—no custom fabrication required.
Product Specifications for PP4178-52
Brand Pacemaker Sport Systems Part # / SKU PP4178-52
Product Type Performance Cat-Back Exhaust System Piping Size 3" (76.2mm) Mandrel-Bent System
Material 409 Grade Stainless Steel Steering Drive Compatibility Suits Both LH and RH Drive Models
Engine Compatibility 5.0L Coyote DOHC V8 (Gen 2) Body Configuration Convertible 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 or vibrating. It will not align properly with standard Fastback Coupe variants.
  • Global Steering Compatibility: Underbody routing clearance metrics are optimized to seamlessly accommodate both Left-Hand Drive (LHD) and Right-Hand Drive (RHD) export market models.
  • Full kit scope: Comprehensive high-flow large-bore 3" cat-back line including performance intermediate plumbing sections and a signature double-skinned rear muffler assembly with polished tips.
  • Direct bolt-on design reuses your vehicle's factory rubber hanger positions and standard catalytic converter paths. No custom fabrication or cutting layout mapping is required.
  • Professional automotive performance technician installation is highly recommended to guarantee ideal ground clearance around soft-top under braces, strict alignment, and gas-tight seals under the floor pan.

Vehicle Applications:

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

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Shipping Notes
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Exchange/Return Notes
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SKU: 91401067974

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Color: Ink Black, Size: 2 pack
Nice, sturdy & heavy end tables. Easy to assemble & the parts supplied help make it very durable l. Would definitely buy again.
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Reviewed in the United States on January 12, 2026
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Chris Stockbridge
Lake Worth, US
★★★★★ 5
Worth the investment
Size: 1 Panel, Size: 1 Panel
I had to order this in an emergency. To put it in brief words, I live in a two level studio unit. My bedroom TV fell backwards off the bureau accidentally and down the stairs to its demise. Putting this together was no problem, instructions were thorough and easy. It came with several bars that connected together smoothly and an Allen key for the brackets and screws for the feet. I did one less horizontal bar on top and bottom so it could fit, which was great because with all of them on it was too long. However I ran into the difficulty of the horizontal bars popping out of the brackets during the last stages, but eventually got it done. I was also looking for a specific type of divider where I could adjust the feet so I could tuck it in between the dresser and banister. Glad I made this purchase.
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Reviewed in the United States on February 19, 2026
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Interloper
Battle Creek, US
★★★★★ 1
You Get What You Pay For! A Piece Of Junk!
Size: 1 Panel
Flimsy and a piece of junk. Don’t waste your money. Assembly is a pain because it is so flimsy. Divider is thin. You can see right through it. Very wobbly.
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Reviewed in the United States on February 25, 2026
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JAMES HAYES
Los Angeles, US
★★★★★ 4
Instructions are useless
Size: 1 Panel
The instructions are poorly written and not very helpful. The divider itself is easy to assemble, and honestly, it would’ve been quicker if I had skipped the directions altogether. Once put together, though, it works as intended.
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Reviewed in the United States on February 20, 2026

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