Fabspeed Porsche 981 Boxster/Cayman Valved Exhaust System

Born from the DNA of Fabspeed’s GT4 exhaust program, this Valvetronic cat-back is the ultimate dual-tone solution for the 981 Boxster and Cayman — the last of the naturally aspirated flat-six mid-engine Porsches. Valves closed, it’s mild and HOA-friendly. Valves open, burbles and backfires erupt, and downshifts bark loud enough to turn every head on the street.

Power

Fabspeed’s DynoJet testing showed peak gains of up to 15 crank HP (12 whp) and 10 lb-ft of torque, with anti-resonance engineering keeping the cabin comfortable in either mode.

Features

• Fits all Porsche 981 Boxster / Cayman vehicles worldwide (2013–2016)
• Helical Limited (UK) aerospace-grade silica-carbide exhaust valves — the same valves used on Porsche GT cars, Ferrari, and McLaren
• Weighs 13 lbs less than the factory rear muffler system (non-PSE)
• Cat-back, emissions legal; 14–16ga T304L stainless steel
• Deluxe dual-style tips: carbon fiber, brushed, or polished stainless
• Direct bolt-on installation — easily reversible for trade-in or concours
• Fabspeed Lifetime Warranty

PSE note: if your center console has the exhaust-tip button, order the PSE option; otherwise choose the standard version with valve controller.

Boosted Mayhem is an authorized Fabspeed dealer. Browse more 981 Boxster / Cayman upgrades and valved exhausts.

Ships brand new from the manufacturer's U.S. facility via UPS Ground, free in the U.S. In-stock items typically ship within 1 to 2 business days; built-to-order systems can take longer. Ask us for a lead-time estimate before you order.

Returns are accepted within 15 days of delivery on unused items in original packaging. A 15% restocking fee applies and return shipping is paid by the customer. Digital items such as ECU software are final sale once delivered.

Full shipping & returns policy