MBRP S4807304 Cat-Back Exhaust System 3" T304 Stainless Steel Quad Tip

The MBRP S4807304 cat-back exhaust system delivers enhanced performance, refined sound, and premium construction for 2022-Up Subaru WRX 2.4L models. This complete system features 3-inch mandrel-bent tubing with a dual split rear configuration and polished quad exhaust tips for an aggressive street appearance.

Premium T304 Stainless Steel Construction:

Built from high-grade T304 stainless steel with elevated chromium and nickel content for superior corrosion resistance and longevity. Jig-manufactured to ensure precise fitment and quality-controlled throughout production for consistent reliability in all climates and driving conditions.

Proven Performance Gains:

Mandrel-bent tubing maximizes exhaust flow to improve engine breathing and cylinder filling. Testing shows up to 42% flow increase over factory exhaust, delivering measured gains of up to 11 horsepower and 7 lb-ft of torque while supporting long-term engine health.

Street Profile Sound Character:

Features a louvered and packed muffler core engineered to produce a smooth, deep exhaust note ideal for daily driving and highway cruising. Maintains civility at idle and cruise while opening up with an aggressive tone under acceleration and high RPM operation.

Key Features:

• 3-inch mandrel-bent T304 stainless steel construction
• Dual split rear exit with quad tip design
• Bolt-on installation with factory mounting points
• Two 4-inch outer diameter polished stainless tips included
• Moderate sound level Street Profile tuning
• Up to 42% exhaust flow improvement
• Dyno-verified 11 HP and 7 lb-ft torque gains
• Complete cat-back system for 2022+ Subaru WRX 2.4L

This system includes all necessary hardware and hangers for straightforward installation using factory mounting locations. MBRP's Armor Pro series delivers professional-grade exhaust performance with materials and construction designed to outlast the competition.