2005-2009 Mustang Exhaust Performance Combo Packages

2005-2010 Mustang GT "THE BEAST" System w/ X-Pipe & Cat-Back M-80 Mid-Mufflers


  • Model: SFM66B
  • Manufactured by: PYPES EXHAUST


THE BEAST is the ultimate if you are looking for maximum sound and maximum flow. Our new 409 Stainless M-80 Mid-Muffler really kicks up the sound and flow while our unique Stainless off-road X-crossover & 409 Stainless Cat-back combo bumps your pony’s HorsePower and makes this system a real killer. The good news is the price tag is seriously Unbeastly.

Cat-Back: This kit is the first mid muffler system for the 2005-10 Mustang. Many owners have been looking for 'That sound' that seems to be missing from the rear mufflered car. Here it is!
2.5” V8 409 SS Mid-muffler System
    w/ mandrel bent mid-pipes, Pypes M-80 bullet Mufflers
    & Muffler-delete Axle-back with 4" Polished 304 SS Tips

X-Pipe:  Pypes Mustang crossovers are second to none! They all feature 2.5” mandrel bent, 409 Stainless Steel pipe and fit in the stock location. Flanges, mounting hardware, O2 sensor rings, reinforcement plates, air tubes and ball flare connections are all standard features (where applicable) on these exceptional crossovers. Our X-pipe kits for short tube headers are a 3-piece modular assembly that makes installation much easier and also allows for lower cost shipping. Gain 8-12 HP and a unique sound!

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This product was added to our catalog on Friday 18 February, 2011.

Request price match for the 2005-2010 Mustang GT "THE BEAST" System w/ X-Pipe & Cat-Back M-80 Mid-Mufflers

Found this item at a lower price but prefer to buy from As long as the item you have seen is readily available, & is not in an end of line sale, we will usually be able to price match.

2005-2010 Mustang GT "THE BEAST" System w/ X-Pipe & Cat-Back M-80 Mid-Mufflers
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