Pacemaker Twin 2.5" Performance Exhaust System with Headers for Ford Mustang GT S550 Convertible 5.0L V8 2015–2017 RHD - PP4178-04
SKU: 62870939774

Pacemaker Twin 2.5" Performance Exhaust System with Headers for Ford Mustang GT S550 Convertible 5.0L V8 2015–2017 RHD - PP4178-04

Sale price$1925.26 Regular price$2139.18
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Description

Pacemaker Twin 2.5" Performance Exhaust System with Headers for Ford Mustang GT S550 Convertible 5.0L V8 2015–2017 RHD - PP4178-04Pacemaker Full Twin 2. 5" Performance Exhaust System with Headers & Hi Flow Cats for Ford Mustang GT Convertible (5. 0L Coyote V8) PP4178 04 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 scavenging efficiency, optimize exhaust gas velocity, and

Pacemaker Full Twin 2.5" Performance Exhaust System with Headers & Hi-Flow Cats for Ford Mustang GT Convertible (5.0L Coyote V8) - PP4178-04

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 scavenging efficiency, optimize exhaust gas velocity, and satisfy the 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 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 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 2.5-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 floor pan lines.
  • 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 optimize exhaust gas tracking.
  • 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 layout components.
Product Specifications for PP4178-04
Brand Pacemaker Sport Systems Part # / SKU PP4178-04
Product Type Full Tuned Exhaust & Header Kit System Piping Size Twin 2.5" (63.5mm) 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 or floor vibration. 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 twin 2.5" tubing, and signature double-skinned rear twin mufflers.
  • Professional automotive performance technician installation is highly recommended to guarantee ideal ground 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: 62870939774

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JRay
Dallas, US
★★★★★ 5
Eye pleasing shelves with the ability to hold weight
Color: Light Brown, Size: 4
Great set of 4 wood floating shelves. I used these to hold precon decks and other commander decks for magic the gathering cards. Though they are on the smaller size, they still fit up to 4 commander boxes side by side and and withhold double that if I stack the boxes. I am very impressed by the quality and how much weight each shelf can hold. The brackets to hang them make the shelves even more sturdy. The shelves are very pleasing on the eyes and the wood color is very natural. The shelves were simple to hang by one person. They look very stunning and of great value. They hold all kinds of items and function perfect as a shelf and look wonderful as a form/type of wall decoration even without items on the shelves. Overall I’m very happy with this purchase and I will be buying more of these shelves soon.
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Reviewed in the United States on May 27, 2025
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Michelle Marley
Alexandria, US
★★★★★ 5
Great shelves
Color: Light Brown, Size: 4, Color: Light Brown, Size: 4
These are cute and easy to install. They were the perfect size for the location. I did use other drywall mounts to make sure they were more likely to stay in but after I installed they feel sturdy and reliable.
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Reviewed in the United States on October 14, 2025
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Mercy Lovell
Battle Creek, US
★★★★★ 5
Great Product
Color: Brown, Size: 4
Love them! They’re fairly priced and can hold a lot of weight! Make the space look great!
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Reviewed in the United States on March 25, 2026
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Joseph Sohn
Phoenix, US
★★★★★ 3
Different mounting mechanism than photos
Color: Light Brown, Size: 4, Color: Light Brown, Size: 4
I'm going to start off this review by stating that the mounting mechanism used on the Shelf is different than the one shown in the photo. In the photo, it shows a single bar which would have made the Shelf easier to level however, the product I received has two separate bars which means I have to be extra careful holding a level against the paper. Stencil. The reason I chose this product over different listings was because for a dollar or two more its photo showed a single bar. Now for the pros and cons: Pros: Accurate measurement. Shelf appears to be actual wood! The photos made it looks like a veneer, which it is not. Easy to install. Includes good instructions. Seems like it can hold items fairly well. Cons: The mounting hardware for drywall pretty flimsy, and I stripped out some of the drywall anchors during install. They still worked, but it was annoying to finish inserting them. The shelf doesn't sit fully flush to the wall from factory as the screws included make it protrude slightly. I can fix this with my dremel, However, This could have been solved from the factory by making the cavity slightly deeper. As mentioned above in my main detractor, it is a two bar mounting system rather than a one bar, which was shown in the photo.
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Reviewed in the United States on October 21, 2024
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Rebecca J. Snow
Lake Worth, US
★★★★★ 4
Pleased overall
Color: Light Brown, Size: 4
They have an unfinished feel, and the underside screws used to hold the shelf on the poles strip out really easy. Tighten those by hand and with care. Other than that, they look great and were easy to install. Came with a full set of hardware including anchors for various wall types. Stable enough to hold small to medium sized Lego sets (don't try to put Lego Hogwarts size kits on them--not big enough). Bought 3 sets of 4 and used others as Book shelves. They work very well for novel size or paperback sized books. Just make sure you anchor them well into the wall. These will only be as good as the installation.
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Reviewed in the United States on December 4, 2025

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