1 / 7FortisArc LM2513 2.5-Inch Center/Center Single-Chamber Muffler Pair
FortisArc LM2513 is a pair of center/center, single-chamber mufflers with 2.5-inch ID inlet and outlet ports. The listing describes a deep, aggressive tone and allows welded or clamp-on installation, but buyers should confirm fitment and the required mounting hardware for their exhaust system.
At a glance
- Pair format provides two mufflers for an exhaust upgrade.
- Center/center layout and 2.5-inch ID ports are intended for compatible exhaust piping.
- Single-chamber design is marketed for a deep, aggressive tone.
- Listing describes both welded and clamp-on installation options.
Often bought together
Pros and cons
Pros
- Two mufflers are listed, useful for a paired exhaust setup.
- The 2.5-inch ID center/center configuration is clearly specified for checking against existing pipework.
- Welded and clamp-on mounting options offer installation flexibility where the exhaust layout allows.
Cons
- The single-chamber design is positioned for an aggressive tone, which may not suit buyers seeking a quieter exhaust character.
Technical specifications
13 specifications| Brand | FortisArc |
|---|---|
| Model | LM2513 |
| Form factor | Oval |
|---|---|
| Dimensions listed | 13 x 9 x 4 inches |
| Weight listed | 5.08 kg |
| Inlet and outlet | 2.5" ID inlet/outlet |
| Installation options | Welding or clamp-on |
| Design | Single chamber |
| Material listed | Alloy Steel |
|---|---|
| Finish and corrosion claim | Silver spray finish resists corrosion |
| Vehicle type | Car |
|---|---|
| Fit type | Universal Fit |
| Number of mufflers | 2 |
|---|
What to know before buying
Listing details to confirm
Listing details are inconsistent or unconfirmed: the title and feature text describe aluminized steel, while the technical details say Alloy Steel. The feature text also gives a 7-inch body length and package weight of 11.4 lbs, while listed item dimensions are 13 x 9 x 4 inches and item weight is 5.08 kg. Confirm the material and dimensions that apply to the selected listing. Universal fit does not establish vehicle-specific compatibility, and included clamps or other mounting hardware are not confirmed.
What’s in the box
Included- 2 mufflers
Who is it for?
A good fit for
- Drivers building an exhaust system around 2.5-inch ID center/center mufflers.
- Buyers seeking a pair of single-chamber mufflers and an intentionally deep, aggressive sound.
- Installers who can confirm fitment and choose welding or compatible clamp-on mounting.
Less suited to
- Drivers who need confirmed fitment for a specific vehicle without checking exhaust layout and dimensions.
- Buyers seeking a quiet or mild-sounding muffler.
- Buyers who require confirmed mounting hardware in the package.

Customer reviews on Amazon
- 5 stars
85% 85% - 4 stars
10% 10% - 3 stars
4% 4% - 2 stars
0% 0% - 1 star
1% 1%
Customer feedback highlights sound quality and value, including one report that the sound compares with more expensive brands. That may matter to buyers choosing these for their advertised aggressive tone, but the feedback does not establish the sound level or vehicle-specific results. Aggregate ratings lean strongly positive, with a smaller spread of lower ratings, and do not explain individual experiences.
Positive themes
- Customers are reported as pleased with the sound quality.
- Customers are reported to find the mufflers good value.
Frequently asked questions
How many mufflers are listed?
The listing specifies two mufflers.
What pipe size and layout does the listing specify?
It describes 2.5-inch ID inlet and outlet ports in a center/center configuration. Confirm those dimensions match your exhaust pipes.
Can these mufflers be clamped on instead of welded?
The feature text claims both welding and clamp-on installation. The listing does not confirm that clamps are included, so plan to obtain compatible hardware if needed.
Are they guaranteed to fit any car?
No vehicle-specific fitment is established. Although the listing calls them universal fit, check your vehicle's exhaust routing, available space and pipe dimensions before purchase.

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