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Wanmax Racing
Premium SS304 Catback Exhaust System for Porsche 911 991.1 991.2 GT3 4.0L NA Vacuum Valved Performance Exhaust
$650.00
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Categories: Exhaust System
100% ORIGINAL AND QUALITY
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DESCRIPTION
Optimize Exhaust Flow & Deliver Pure High-Rev Flat Six Sport Sound for Porsche 991 GT3.
This mirror polished 304 stainless steel vacuum valved rear exhaust muffler set adopts thick mandrel bent stainless steel with bright mirror polished finish, upgrading chassis racing texture while maintaining stable high-temperature performance. Optimized balanced internal pipeline smooths exhaust gas circulation and reduces flow resistance, bringing sharper throttle feedback and richer penetrating high-rev flat-six vocal texture. Equipped with vacuum valve control system to support dual sound modes for different driving scenarios, switching between quiet daily cruising tone and aggressive resonant track exhaust note. Fitted with glossy black straight dual tail tips to upgrade rear sport visual effect. Precision real-car scanned chassis molding matches factory mounting positions completely, supporting direct OEM bolt-on installation without cutting or modification. Multi-stage pre-shipment quality inspection ensures consistent welding and polishing finish.
VEHICLE FITMENT
- Porsche 911 991.1 GT3 — All Production Years (4.0L Naturally Aspirated Flat Six Engine)
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Porsche 911 991.2 GT3 — All Production Years (4.0L Naturally Aspirated Flat Six Engine)
KEY FEATURES
- Thick Mandrel Bent Premium SS304 Stainless Steel Base: Heavy-duty pipe wall with excellent anti-rust and heat resistance, long service life under sustained extreme high heat operation.
- Mirror Polished Bright Metal Surface: Smooth reflective polished layer delivers clean premium racing appearance and easy daily cleaning maintenance.
- Vacuum Valve Control System: One-click switch between comfortable quiet street mode and vibrant high-rev naturally aspirated flat-six race sound.
- Balanced Optimized Internal Pipeline Layout: Evenly distributes bilateral exhaust pulses to cut gas circulation resistance and fully release original engine sound characteristics.
- Gloss Black Straight Dual Tail Tips: Uniform matte black metal finish, neat two-outlet layout perfectly matches 991 GT3 rear bumper contour.
- Full Hand Fish-Scale TIG Air-Tight Welding: Uniform smooth welds keep airtight under long-term limit exhaust heat, no abnormal rattling or gas leakage.
- Precision OEM Direct Plug & Play Design: 1:1 real-car scanned pipeline routing avoids chassis interference, seamless bolt-on replacement without extra modification.
TECH SPECIFICATIONS
- Main Pipe Material: Thick Mandrel Bent SS304 Stainless Steel with Mirror Polished Finish
- Tip Accessory: Detachable Gloss Black Straight Dual Tail Sleeves
- Valve Type: Vacuum Driven Electronic Valve Control System
- System Type: Balanced Muffler Catback Exhaust Pair
- Welding Process: Handcrafted Full Fish-Scale TIG Seamless Air-Tight Welding
- Compatible Engine: 4.0L Naturally Aspirated Flat Six (991.1 / 991.2 GT3)
WHAT'S IN THE BOX
- 1 Pair Complete Mirror Polished SS304 Vacuum Valved Catback Muffler Assembly
- 2x Gloss Black Straight Exhaust Tip Sleeves
- Vacuum Valve Control Harness & Control Module + Wireless Remote Fobs
- Full Set OEM Matching Installation Clamps & Hardware Kit
