SKU: 89944164624

Pacemaker 2.5" Cat-Back Performance Exhaust System for Ford Mustang GT S550 Fastback Coupe 5.0L V8 2015–2017 - PP4178-01

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Description

Pacemaker 2.5" Cat-Back Performance Exhaust System for Ford Mustang GT S550 Fastback Coupe 5.0L V8 2015–2017 - PP4178-01Pacemaker 2. 5" Performance Cat Back Exhaust System for Ford Mustang GT Coupe (5. 0L Coyote V8) PP4178 01 Unleash a deep, aggressive American muscle growl and optimize gas flow velocity from your high revving quad cam engine with the Pacemaker Sport Systems heavy duty 2. 5" performance cat back exhaust solution. Specifically engineered to maximize scavenging efficiency and enhance the distinct mid to high RPM acoustics of the iconic 5. 0L Coyote V8,

Pacemaker 2.5" Performance Cat-Back Exhaust System for Ford Mustang GT Coupe (5.0L Coyote V8) - PP4178-01

Unleash a deep, aggressive American muscle growl and optimize gas flow velocity from your high-revving quad-cam engine with the Pacemaker Sport Systems heavy-duty 2.5" performance cat-back exhaust solution. Specifically engineered to maximize scavenging efficiency and enhance the distinct mid-to-high RPM acoustics of the iconic 5.0L Coyote V8, this premium system is precision-molded to clear the floor pan lines, underbody layout, and multi-link independent rear suspension geometry of the S550 Fastback platform. By replacing your stock, restrictive factory piping with a high-flow 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 high-load highway drone. Note: Fits Ford Mustang GT S550 Fastback Coupe models (2015–2017) equipped with the 5.0L Coyote V8 engine configuration; engineered 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 Cat-Back Section: Complete performance intermediate plumbing and rear muffler layout engineered to bolt up securely behind your factory or high-flow catalytic converters.
  • 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 2.5" (63.5mm) 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 sports coupes 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 PP4178-01
Brand Pacemaker Sport Systems Part # / SKU PP4178-01
Product Type Performance Cat-Back Exhaust System Piping Size 2.5" (63.5mm) 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 Fastback Coupe Only

Important Fitment Notes:

  • Specifically engineered to fit Ford Mustang S550 GT Fastback Coupe platforms powered by the 5.0L Coyote V8 engine configuration (2015–2017 models).
  • Coupe Specific Chassis Layout: This configuration features tailor-formed exhaust pipe paths and bracket placements designed precisely to mount cleanly under the standard fastback coupe floor pan lines. It will not adapt correctly to Convertible models due to structural under-car cross bracing on the soft-top platforms.
  • 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 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 welding layout mapping is required.
  • Professional automotive performance technician installation is highly recommended to guarantee ideal ground clearance, 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 Fastback Coupe 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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Exchange/Return Notes
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SKU: 89944164624

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K
Verified Purchase
Khaleesi
Whiting, US
★★★★★ 5
Great filter and easy installation
Style: BE-159 1-Pack, Style: BE-159 1-Pack
For my 2016 Hyundai Sonata Hybrid Limited. I cannot believe I paid so much more for a brand-name filter that does the same thing as this one. It is made of the same material as the dealer one I took out. Very easy to install, cant believe I paid for this to be done in the past with oil changes. Requires no tools and did not get dirty at all. No mechanical skills needed, especially if you run into trouble and can use YouTube. PROS - great quality, cannot tell that it is after-market - very professionally made, not irregularities seen - excellent fit in position, no adjustment needed - very easy to install, cannot believe I paid to have this done in the past - no mechanical skills needed to install - great price compared to what big name productions want for the same thing - cannot tell the difference in air quality between this and the dealer filter I took out - removes outside odor completely - did not require tools are getting dirty CONS - None
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
J
Verified Purchase
JimXeod
Boise, US
★★★★★ 5
Fits perfect and works as designed. Flows like OEM and looks well made.
Style: BE-553B 1-Pack
This filter is very comparable to the stock filter. Fits the BMW G20 just like OEM. I would not say it is two times "heavier" as advertised on the box, but it is very comparable to stock. It's the same weight and similar construction. BMW has a very robust cabin filter. This will be my go to. I did purchase another aftermarket cabin filter that fit well, but was thin, flimsy and had a bad chemical odor. This one is fine and airflow is the same as OEM. I change them every year or so. I don't worry too much about longevity with cabin filters personally.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
S
Verified Purchase
S. Phillips
Natrona Heights, US
★★★★★ 4
Good quality but it was slightly longer than original and needed modification.
Style: BE-182 1-Pack
Bought this cabin filter for a 2023 Acura TLX. While the filter seems to be made of quality material, it was just a little too long (about a 1/16 of an inch, so I had to trim it to make it fit so the cover would fit snug. I was able to do that without compromising the filter itself. But this might be an issue for some people
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Reviewed in the United States on May 8, 2026
K
Verified Purchase
Keith Granholm
Omaha, US
★★★★★ 5
Fits my Chevy 2021 Bolt Premier perfectly.
Style: BE-966 1-Pack
Installation was a breeze, fir nicely and the air in teh car now smells fresh and clean. The old filter has developed a musty smell so this new one is great. Had it replaced in under 3 minutes.
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Reviewed in the United States on May 18, 2026
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Punkizback
Los Angeles, US
★★★★★ 5
Fits perfectly for my 2017 VW Passat
Style: BE-373 1-Pack, Style: BE-373 1-Pack
Bought this for a fraction of the cost. An auto shop wanted to charge me $72.99 for a filter so I bought this Spearhead brand cabin filter and its the perfect size and its just as sturdy as the previous one the dealership had in the car. Not sure yet how the airflow is or if anything different as I have not driven in the car since it was replaced, but it appears to be a very high quality cabin filter for my car at a great price.
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Reviewed in the United States on May 25, 2026

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