SLP Performance Parts Axle Back Exhaust System Loudmouth II With 4” Polished Tips Mustang GT 2015-2017

SLP Performance Parts:


  • Easy Installation
  • 304SS Construction
  • 2.5" Tubing
  • Pre-Welded Hangers
MSRP $513.99
You save 8%

SLP Performance Parts Loudmouth II Axle-Back Exhaust System With 4" Polished Tips for 2015, 2016 and 2017 GT Mustangs.

SLP Performance Parts 620055 offers the opportunity to customize your 2015-2017 GT’s exhaust system with their Loudmouth II Axle Back with massive 4-inch polished tips. The Loudmouth’s emissions are legal in all 50 states and comes equipped with a resonator to minimize harshness while still producing a sporty tone. Featuring a 2-1/2-inch stainless steel tubing system your exhaust will have maximum flow increasing performance.

Features and Benefits:
- Lighter Than OEM Assembly
- Straight forward Installation
- Constructed Of Stainless Steel
- Emissions Are Legal In All 50 States
- Includes Pre-Welded Hangers
- 2-1/2” Tubing
- Two 2015 Mustang 304SS Tips
- Resonator Offers a Sporty Tone With Minimal Harshness

Installation is simple and straightforward via the included pre-welded hangers. Constructed entirely of stainless steel, the Loudmouth II is lighter than OEM assembly and optimizes an overall boost in speed for your Fastback or Convertible. SLP’s Loudmouth will fit your pony’s assembly regardless of manual or automatic transmission.

California Residents: Proposition 65 Warning

Installation Difficulty


Novice skill is required for this installation.

Vehicle Fitment

This product will fit the following Mustang years:

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