FORGE MOTORSPORT Milltek Non-Resonated 3" Cat Back Exhaust for VW Golf Mk7 R FMSSXVW404

 

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FORGE MOTORSPORT

Milltek Non-Resonated 3" Cat Back Exhaust for VW Golf Mk7 R FMSSXVW404

The Forge Motorsport Milltek Non-Resonated 3” Cat-Back Exhaust (FMSSXVW404) is one of the most respected premium exhaust upgrades for the Volkswagen Golf Mk7 R (EA888 Gen 3, 2.0 TSI). 

Built from T304 stainless steel, it is engineered to improve exhaust flow while maintaining OEM-quality fitment and durability. 

Technical Highlights

• 3-inch (76.2 mm) mandrel-bent piping
• Larger diameter than stock, reducing exhaust backpressure.
• Improves high-RPM breathing, particularly on tuned Stage 1 and Stage 2 cars.
• Non-resonated design
• Deletes the center resonator for a significantly louder and more aggressive exhaust note.
• Produces deeper bass, sharper DSG upshift cracks, and more pronounced overrun burbles.
• T304 Stainless Steel
• Excellent resistance against corrosion and heat cycling.
• Suitable for daily driving and track use.
• Direct bolt-on installation
• Uses factory mounting points.
• No cutting or welding required. 

Performance

On an otherwise stock Golf R:

• Power gain: 3–8 hp
• Torque gain: 5–10 Nm
• Faster turbo response due to lower exhaust restriction
• Slightly improved throttle response

With:

• ECU Stage 1
• High-flow downpipe
• Intake
• Turbo inlet

the exhaust becomes much more beneficial because it no longer acts as a bottleneck.

Sound Characteristics

Cold Start

• Loud
• Deep bass
• Noticeably more aggressive than OEM

City Driving

• Rich low-frequency tone
• Audible turbo whistle
• Distinct DSG crackles

Wide Open Throttle

• Motorsport-inspired roar
• Strong pops during gear changes
• Excellent turbo soundtrack

Among Golf R owners, the non-resonated version is widely regarded as the more exciting option, although several owners report that it can introduce noticeable cabin drone depending on the rest of the exhaust setup. 

Advantages over Competitors

Brand	Strength	Compared with Milltek
Akrapovic	Extremely lightweight titanium	More expensive, slightly more refined
Remus	Deep tone	Slightly less refined fitment
Armytrix	Valved with remote control	Much louder but considerably more expensive
AWE	Extremely aggressive sound	Can drone more, less OEM-like appearance
Milltek	Excellent balance of quality, fitment, and tone	One of the best all-round choices

Advantages

• Excellent OEM-quality fit
• Premium T304 stainless construction
• Larger 3-inch piping
• Aggressive but refined exhaust note
• Suitable for stock and tuned EA888 engines
• Lifetime manufacturer warranty in many markets 

Disadvantages

• Higher price than many competitors
• Non-resonated version may produce cabin drone around cruising speeds (approximately 2,000–3,000 rpm), especially when paired with an aftermarket downpipe. 
• Cat-back alone provides modest power gains without additional modifications.

The Verdict

Engineering: ★★★★★ (9.8/10)

Sound: ★★★★★ (9.7/10)

Build Quality: ★★★★★ (9.8/10)

Performance Gain: ★★★★☆ (8.8/10)

Daily Comfort: ★★★★☆ (8.6/10)

Overall: 9.5/10

The Milltek FMSSXVW404 is ideal for enthusiasts who want their Golf Mk7 R to sound significantly more aggressive without compromising premium construction or fitment. 

If your goal is a fast-road or Stage 1/Stage 2 build, it is one of the best-balanced cat-back systems available. 

However, if you prioritize long-distance comfort, the resonated version is the better choice, while the non-resonated version is better suited to drivers who value maximum exhaust character over cabin quietness.

FORGE MOTORSPORT

Milltek Non-Resonated 3" Cat Back Exhaust for VW Golf Mk7 R FMSSXVW404

Surface Transforms Ferrari Italia/Spider Front CCST discs ST-K-1011

The Surface Transforms ST-K-1011 is a direct replacement front carbon-ceramic brake disc set designed for the Ferrari 458 Italia and 458 Spider equipped with factory carbon-ceramic brakes. 

It features 398 × 36 mm CCST (Carbon Ceramic Surface Transforms) rotors that replace the OEM Brembo carbon-ceramic discs without requiring modifications. 

Technical Specifications

• Manufacturer: Surface Transforms (United Kingdom)
• Part Number: ST-K-1011
• Vehicle: Ferrari 458 Italia / 458 Spider
• Position: Front axle set
• Rotor Size: 398 × 36 mm
• Material: Continuous Carbon Fibre Reinforced Silicon Carbide (CCST)
• Fitment: Direct OEM replacement for factory carbon-ceramic brake systems. 

Technical Explanation

Unlike conventional carbon-ceramic discs that use short chopped carbon fibres, Surface Transforms employs a 3D continuous woven carbon-fibre matrix before silicon infiltration. This patented construction dramatically increases structural integrity and thermal stability.

Engineering Advantages

1. Superior Thermal Management

• Faster heat dissipation under repeated high-speed braking.
• Lower operating temperatures reduce brake fade during circuit driving.
• Maintains a more consistent coefficient of friction.

2. Exceptional Durability

• Continuous fibre construction resists crack propagation.
• Better suited to repeated heat cycles than many OEM carbon-ceramic rotors.
• Longer service life, especially for spirited road and track use.

3. Lower Unsprung Mass
Surface Transforms states that carbon-ceramic systems can save significant unsprung weight versus iron brakes, improving:

• Steering precision
• Suspension response
• Ride quality
• Cornering grip
• Acceleration and braking efficiency. 

4. Improved Wet Performance
The rotor surface clears water rapidly, giving more predictable braking in wet conditions compared with many earlier-generation carbon-ceramic designs. 

Advantages over OEM Ferrari Carbon-Ceramic Discs

Feature	OEM Ferrari CCM	Surface Transforms CCST
Carbon structure	Chopped fibre	Continuous woven 3D fibre
Heat resistance	Excellent	Higher thermal capacity
Crack resistance	Good	Outstanding
Track endurance	Excellent	Superior for repeated heavy use
Brake consistency	High	Very high
Rotor lifespan	Long	Typically longer under demanding conditions
Fade resistance	Excellent	Among the best available

Advantages over Other Aftermarket Brands

Compared with:

• Brembo CCM
• SGL Carbon
• AP Racing Carbon Ceramic
• Girodisc Iron Conversion
• Performance Friction

Surface Transforms stands out because of:

• Proprietary continuous-fibre technology
• Higher resistance to thermal shock
• Better structural strength
• Longer rotor life under repeated extreme braking
• Strong performance on both road and endurance track applications. 

Potential Disadvantages

• Premium purchase price.
• Carbon-ceramic replacement costs remain substantially higher than iron rotors.
• Maximum performance still requires compatible high-quality brake pads (such as Pagid compounds recommended for these discs).
• Replacement should ideally be carried out by technicians familiar with Ferrari carbon-ceramic systems. 

Best For

• Ferrari 458 owners seeking the highest braking performance.
• Frequent track-day and endurance-event drivers.
• Owners looking to reduce long-term rotor wear while maintaining OEM fitment.
• Enthusiasts who want improved pedal consistency during repeated high-speed braking.

The Verdict

The Surface Transforms ST-K-1011 is arguably one of the most advanced carbon-ceramic brake upgrades available for the Ferrari 458 Italia and Spider. 

Rather than simply matching the factory setup, its patented continuous carbon-fibre construction addresses common weaknesses of traditional carbon-ceramic rotors—particularly thermal fatigue and crack resistance. 

For owners who regularly drive aggressively on road or track, it offers a compelling blend of lighter weight, stronger construction, superior heat management, and extended service life, making it one of the benchmark choices in the ultra-high-performance braking segment.

Surface Transforms Ferrari Italia/Spider Front CCST discs ST-K-1011