Your 2011-2014 Mustang GT 5.0, 2012-2013 Boss 302, and 2011-2012 Shelby GT500 packs a thoroughbred of an engine, why bottle it up with restrictive, wimpy-sounding stock mufflers? Unleash the Pony within, with a LoudMouth� Rear-Axle Back Exhaust System. This affordable, easy-to-install kit eliminates the factory mufflers entirely, drastically reducing backpressure for enhanced power and a mind-blowing performance sound. Nothing else even comes close! Combined with our 4″ polished tips, you’ll really feel and hear the difference! LoudMouth Axle-Back Exhaust System Features: Mandrel-bent 2.5″ tubing offers unbeatable flow characteristics Significantly lighter than the OEM muffler assembly Installs in under an hour Constructed entirely from stainless steel Hand-polished, 4″ dual-wall tips provide a show-quality appearance Emissions legal in all 50 states Includes pre-welded hangers, detailed instructions, and all necessary installation hardware Covered by SLP’s Performance Guarantee and limited lifetime warranty�
“Lokar Flexible and Machined Engine Dipsticks ED-5001” has been added to your cart. Continue shopping
“Manley Race Series Stainless Steel Valves 11360-8” has been added to your cart. Continue shopping
“Monster SC Series Triple Disc Clutch Package (Rated to 1200-1500 RWHP/RWTQ) – 2004-2006 Pontiac GTO- SC3-9520-GTO” has been added to your cart. Continue shopping
“Mantic 9000 Series Triple Disc Clutch – Cerametallic – 2016+ Chevy Camaro SS & ZL1 (6.2L V8) – M931244” has been added to your cart. Continue shopping
SLP Loudmouth I Axleback Exhaust – 2011-2014 Ford Mustang GT, Boss 302 & GT500 – M31023
$402.99 Original price was: $402.99.$362.69Current price is: $362.69.
SLP Loudmouth I Axleback Exhaust – 2011-2014 Ford Mustang GT, Boss 302 & GT500 – M31023
$402.99 Original price was: $402.99.$362.69Current price is: $362.69.
Part Number:
m31023
SKU:
M31023
UPC:
871782001048 SLP M31023
Related products
-
Sale!
Chevy Camaro (2016+), Exhausts, GM Cars
Borla S-type Dual Mode (NPP) Catback Exhaust – 2017+ Camaro ZL1 (6.2L V8 LT4) – 140726
$2,915.99Original price was: $2,915.99.$2,332.79Current price is: $2,332.79.
-
Sale!
Chevy Camaro (2016+), Exhausts, GM Cars
Borla Atak Dual Mode (NPP) Catback Exhaust – 2017+ Camaro ZL1 (6.2L V8 LT4) – 140727
$2,659.99Original price was: $2,659.99.$2,127.99Current price is: $2,127.99.
-
Sale!
Exhausts, GM Cars
Borla S-type Catback Exhaust – 2016+ Cadillac ATS-V Coupe/Sedan (3.6L Twin Turbo) – 140692
$2,628.99Original price was: $2,628.99.$2,103.19Current price is: $2,103.19.





