Pacemaker 2.5" Cat-Back Performance Exhaust System for Ford Mustang GT S550 Fastback Coupe 5.0L V8 2015–2017 - PP4178-01
SKU: 89944164624

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

Sale price$994.83 Regular price$1105.37
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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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Gabriel Saraco
Chelsea, US
★★★★★ 5
Exactly what I needed!
Color: Natural, Size: 6 Panels
My main use for this may be different than most people. I was taking care of some kittens and wanted to keep them away from sensitive areas of the living room (wires, home theater equipment, etc.). At first I stacked some boxes around, which was rather ugly and ineffective (made it harder for ME to get around more than anything else). I went online looking for a better solution and found this room divider. This did the trick! Finally I could have a stress-free time while the kittens were running around, and with something that actually improved the look of the room too. The divider itself is put together very well. The hinges actually fold both ways, so you get some versatile configuration options. It is lightweight and easy to move around, making it very easy to stash out of the way when not in use. I was so pleased that I went and bought 2 of the smaller 4-panel dividers as well, to use in a different area.
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Reviewed in the United States on October 9, 2024
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Mary Flynn
Bozeman, US
★★★★★ 4
Nice and functional
Color: Black, Size: 6 Panels
Nice Works for separating spaces and looks nice
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Reviewed in the United States on February 28, 2026
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Ginni P.
Grantham, US
★★★★★ 1
UNhappy Customer!
Color: Natural, Size: 6 Panels
Quite honestly I dont normally give poor reviews. I dont normally get poorly made products from Amazon but this time has changed things for me. I will order very little and will especially be mindful of anything made in China! This divider arrived in an intact but wet box. It took me nearly 20 minutes to get it to unfold. The two outside panels flipped out freely but for some reason I had to work to get the other panels to unfold. When it did open, the second panel was clearly damaged. I proceeded to prepare it for return, taped it up securely, requested and received a return label and traveled to the UPS store to return. Wouldn't you know it...UPS shipping charges were $154.00!!! More than I paid for this inferior product. So, if I return on my dollar and hope it makes it to the appointed destination and receive $151.99 for the return cost, I'm out $154.00 and no product to show for it! Its amazing how sellers come up with ways to unload their junk and then prevent satisfied customers by making them pay for the return shipping costs. I opted to keep the junk and consider it a lesson learned. What a scam!
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Lowell, US
★★★★★ 5
Great product!
Color: Black - Shelves, Size: 6 Panels, Color: Black - Shelves, Size: 6 Panels
Made well with lightweight material making it easy to move when needed. The style is great for an office backdrop with shelves to decorate. Great addition to my home office.
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Emilly
West Palm Beach, US
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Great product
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Absolutely perfect for what I needed, it’s just like the pictures shows and no assembly required!
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Reviewed in the United States on March 21, 2026

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