Exhaust pipe kit

Valved Cat‑Back Exhaust System for BMW M5 G90 S68 4.4T PHEV dual‑Y mid‑pipe valved rear muffler section

This valved cat‑back exhaust system is designed specifically for BMW G90 M5 Sedan / G99 M5 Touring with S68 4.4L V8 twin‑turbo plug‑in hybrid powertrain. The factory exhaust is heavily silenced with multiple large resonators, resulting in flat, artificial sound and high exhaust back‑pressure, which restricts power output and throttle response even after ECU tuning. Our cat‑back exhaust is constructed from premium T304 stainless steel (titanium optional). It adopts full mandrel bent dual‑Y crossover pipe layout, combined with a centre large‑volume resonator and dual side electronic valve muffler assembly. The optimized gas‑flow path drastically reduces back‑pressure and flow turbulence, unlocking authentic deep V8 turbo soundtrack while minimizing highway cabin drone.

Titanium Valved Cat‑Back Exhaust System For Porsche Cayman Boxster 981

The factory‑stock exhaust system for Porsche 981 Cayman / Boxster uses heavy, restrictive steel mufflers. The OEM setup produces a quiet, muted exhaust note and builds substantial back‑pressure, which blunts throttle response and masks the naturally aspirated flat‑six engine’s iconic soundtrack. titanium alloy. Mandrel‑bent titanium tubing features beautiful heat‑colored burnt‑blue finish. Optimized internal chamber geometry delivers authentic sharp flat‑six tone, while suppressing annoying cabin drone during highway cruising. Every weld is professional full TIG welded. Each exhaust assembly is individually pressure‑tested and vibration‑tested before shipment for long‑term reliability under high exhaust‑gas temperatures. Jig‑manufactured geometry precisely copies all OEM mounting hangers and bumper cutout clearance. 100% bolt‑on installation, no cutting or grinding, fully reversible back to stock.

Titanium Cat‑Back Exhaust System For Porsche Cayman / Boxster 987

Full Titanium Valved Cat‑Back Exhaust for Porsche Cayman / Boxster 987(987.1/987.2) 2.7L 2.9L 3.4L Flat‑6 NA 2005‑2012. titanium with natural burnt‑blue heat tint. quiet for daily cruise / sharp flat‑six race sound for track use, well‑tuned to reduce highway drone. TIG‑welded & pressure‑tested, jig‑built OEM fitment, equipped with carbon‑fiber tips. 100% bolt‑on reversible install, retains stock cats, fits Manual & PDK, street & track‑day, LHD & RHD compatible.