Why a Catch Can Matters for Your 2018 Ford Mustang GT

The 2018 Ford Mustang GT, equipped with the Gen 3 Coyote 5.0L V8, is a masterpiece of modern engineering. However, direct-injection engines—like the one in your GT—suffer from a persistent issue: carbon buildup on the intake valves. Unlike port-injected engines, fuel never washes over the valves, so oil vapor from the PCV (Positive Crankcase Ventilation) system deposits gunk over time. A high-quality catch can, such as the Mishimoto unit, intercepts that oil vapor before it reaches the intake. This simple addition can preserve performance, reduce maintenance headaches, and extend engine life. Below, we break down every cost you’ll encounter when adding a Mishimoto catch can to your 2018 Mustang GT—from the can itself to labor and unexpected extras.

Complete Cost Breakdown

Installing a Mishimoto catch can isn’t a one-price affair. Total expense depends on your choice of model, whether you DIY or hire a shop, and if you need specialty tools. Here’s a detailed line-item breakdown:

  • Mishimoto Catch Can Kit: $200 - $300 (varies by single-can vs. dual-can system)
  • Installation Kit / Mounting Hardware: $50 - $100 (often included, but some kits require separate brackets)
  • Labor Costs: $100 - $200 (professional installation; $0 if DIY)
  • Additional Tools (if needed): $20 - $50 (socket set, pliers, trim removal tools)
  • Optional: Catch Can Drain Hose Extension: $10 - $30
  • Optional: Performance Gaskets or Fittings: $15 - $40

Mishimoto Catch Can: Which Model Fits Your GT?

Mishimoto offers two primary catch can setups for the 2018 Mustang GT. The single-can kit (MCCP-FM5-15BK) captures oil from the driver-side valve cover and typically retails between $200 and $250. The more comprehensive dual-can setup (MCCP-FM5-06BK) adds a second can for the passenger-side PCV line, raising the price to $280–$300. The dual kit is recommended for maximum oil separation, especially if you track the car or drive aggressively. Prices fluctuate by retailer; Mishimoto’s own site often runs seasonal discounts, while third-party sellers like American Muscle or CJ Pony Parts may offer bundle deals. Always verify compatibility: the 2018 GT uses a specific bracket design that differs from earlier 2015-2017 models.

Installation Kit: What’s Included?

Most Mishimoto catch can kits ship with pre-cut hoses, stainless steel mounting bracket, and all necessary clamps. However, some budget retailers sell the can alone without the bracket kit, requiring an extra $50–$100 purchase. The bracket is CNC-machined to bolt directly to existing chassis holes near the strut tower—no drilling required. If you lose a fitting or want a tighter seal, aftermarket AN fittings can add another $20–$40. Check the product listing carefully: “complete kit” usually means everything you need out of the box.

Labor Costs: DIY vs. Professional Installation

Labor rates for catch can installation vary widely by region and shop. A typical independent performance shop charges $100–$200 for the job (about 1 to 1.5 hours of labor). Dealerships may quote $250 or more. However, installing a Mishimoto catch can on a 2018 Mustang GT is a beginner-to-intermediate DIY project. Most owners complete it in under an hour with basic hand tools. The process involves disconnecting two PCV hoses, mounting the can, and rerouting the hoses. No cutting or splicing is required if you buy the specific kit. If you choose DIY, the only cost is your time—and maybe a cold beer afterward. For a step-by-step guide, check forums like Mustang6G where many members share detailed photo walkthroughs.

Additional Tools and Materials

If you don’t already own a basic socket set (10mm, 12mm, 15mm), a pair of pliers, a flathead screwdriver, and trim removal tools, budget $20–$50 for a starter set from Harbor Freight or Lowe’s. Some owners also buy a small flexible hose (3/8” ID) to extend the can’s drain valve for easier emptying—an extra $10–$30. If you install in cold weather, a pair of latex gloves and shop rags will save you from dirty hands. These are minor costs but worth planning for.

Total Estimated Costs: DIY vs. Professional

Scenario Catch Can Kit Installation Kit Labor Tools Total
DIY, single can, no tools needed $220 $0 (included) $0 $0 $220
DIY, dual can, need basic tools $290 $0 (included) $0 $30 $320
Professional, single can, shop labor $240 $0 $150 $0 $390
Professional, dual can, with extras $300 $40 (extra fittings) $200 $0 $540

As shown, the all-in cost ranges from roughly $220 to $540. The most economical route is a single-can DIY install with tools you already own. The most expensive involves a dual-can kit with professional labor and upgraded fittings—still under $600, which is a bargain compared to the cost of a carbon cleaning service ($500–$1000 every 30,000 miles).

Beyond the Catch Can: Long-Term Value

Spending $220–$540 today can save you hundreds, even thousands, down the road. Direct-injection valve deposits can rob up to 10% of peak horsepower over 60,000 miles. A professional walnut blasting service to remove carbon costs $500–$800 per session. With a Mishimoto catch can, you dramatically slow deposit formation, meaning fewer cleanings and better performance retention. Many owners report the can collecting 20–50 mL of oil per 3,000 miles—oil that would otherwise coat your intake valves. Mishimoto’s baffled design and easy-drain petcock make emptying a 30-second task during an oil change.

Comparison with Other Catch Can Brands

While Mishimoto is the benchmark, alternatives like UPR Products or JLT Performance offer lower-cost options ($150–$200). However, Mishimoto’s billet aluminum construction, lifetime warranty, and vehicle-specific brackets justify the premium. UPR’s “single valve” style is simpler but may not separate as efficiently. JLT’s “oil separator” is basically a filter inside a can; it works but requires periodic replacement. Mishimoto’s can is truly reusable indefinitely. For a 2018 Mustang GT, the Mishimoto dual-can system is widely regarded as the best balance of form, function, and durability. Read comparisons on Mustang6G for firsthand owner experiences.

Step-by-Step Installation Overview (for Reference)

Even if you plan to hire a pro, understanding the process helps you ask the right questions. Here’s a condensed outline:

  1. Prep: Ensure engine is cool. Locate the PCV hoses on the driver-side and passenger-side valve covers.
  2. Mount Bracket: Bolt the Mishimoto bracket to the strut tower using the provided hardware. Torque to 10–12 ft-lbs.
  3. Attach Catch Can: Slide the can onto the bracket and tighten the locking ring.
  4. Route Hoses: Disconnect the factory PCV hose. Connect one end of the Mishimoto hose from the valve cover to the “IN” port of the can, and the other from the “OUT” port back to the intake.
  5. Secure: Use supplied clamps or zip ties to keep hoses away from heat sources and moving parts.
  6. Check Clearance: Close the hood and verify nothing rubs or binds.
  7. Test: Start engine, let idle, check for leaks. Listen for whistling (vacuum leak).

If you opt for the dual-can system, the passenger-side can mounts on the opposite strut tower following the same logic. The whole job rarely exceeds 90 minutes even for a first-timer.

Frequently Asked Questions About Costs and Installation

Is the Mishimoto catch can worth the money on a 2018 Mustang GT?

Yes, especially if you plan to keep the car long-term. The cost is small relative to the potential damage from carbon buildup. Many high-mileage GT owners with catch cans report intake valves that look nearly new at 100,000 miles. The resale value also benefits—buyers prefer a well-maintained engine.

Will installing a catch can void my warranty?

In the United States, the Magnuson-Moss Warranty Act prevents a manufacturer from voiding a warranty simply because you installed a aftermarket part—unless that part directly caused the failure. A catch can only intercepts oil vapor and doesn’t modify the engine’s calibration or fuel system. However, some dealerships may push back. Install the can with clean routing and keep the factory PCV hoses in case you need to revert for service. You can also ask your dealer beforehand.

How often do I need to empty the catch can?

Check it at every oil change (5,000–7,500 miles). In cold weather or short-trip driving, you might collect more condensation and oil—empty every 3,000 miles. Mishimoto’s can has a clear window, so you can see the level without opening it.

Can I install a catch can myself with no mechanical experience?

If you can change a tire, you can install a catch can. It’s one of the easiest mods. Watch a few YouTube videos—many channels like “Mustang Addict” or “Mishimoto” have step-by-step guides. The only tool you absolutely need is a 10mm socket to remove the strut tower nut. Even total beginners have succeeded.

Final Thoughts on Budgeting for Your Mishimoto Catch Can

Installing a Mishimoto catch can on a 2018 Ford Mustang GT is a low-cost, high-reward modification. With a total investment of $220 to $540, you protect your engine from the most insidious side effect of direct injection—carbon buildup. The dual-can setup offers the best protection and is worth the extra $100 if you plan to keep the car past 60,000 miles. Professional installation adds convenience but isn’t necessary; the DIY route is straightforward and saves $100–$200. By weighing the costs against the savings in future carbon cleaning and potential performance loss, you’ll see this is one of the smartest mods you can make. For more detailed pricing and to purchase, visit Mishimoto’s official website or check supplier reviews on American Muscle.