Based on the premium foundation of the Infiniti G37 Convertible, the IPL G Convertible features an advanced VQ37VHR 3.7-liter V6. The engine management system has been recalibrated through air-fuel mixture and ignition timing optimization, raising the maximum horsepower output point to 7,400 rpm. To obtain a natural acceleration feel, the torque curve from low revs to the maximum torque point (5,200 rpm) was tuned for linearity. The IPL-tuned high-flow exhaust is a full dual exhaust design with independent left and right large diameter pipes. The muffler’s inner structure and materials have been maximized to reduce pressure and provide an appropriate performance exhaust note. The result is a 30% reduction in exhaust pressure versus a base G Convertible’s Y-pipe exhaust system design.
As a result of both the exhaust system and engine management changes, the Infiniti IPL G Convertible generates 343 horsepower – an increase of 18 horsepower over the non-IPL models – and 273lb-ft of torque (+6 lb-ft).
The engine is matched to an electronically controlled 7-speed automatic transmission with Downshift Rev Matching and quick-shift Drive Sport (DS) mode with magnesium paddle shifters and Adaptive Shift Control (ASC).
The Infiniti IPL G Convertible also offers a sport-tuned steering gear and large 4-wheel sport brakes (14-inch front, 13.8-inch rear) with aluminum-alloy opposed calipers (4-piston front/2-piston rear).
Other standard Infiniti IPL G Convertible interior features includes a 13-speaker Bose® Open Air Sound System, optimized for both top positions, with AudioPilot® 2.0 noise compensation technology and Personal® front seat headrest speakers, an Adaptive Dual Zone Climate Control that automatically adjusts fan speed and air volume based on top position, and Advanced Climate Control System (ACCS) with Plasmacluster® air purifier, Infiniti Navigation System with voice recognition and available XM NavTraffic® Real-Time Traffic Information, NavWeather™ with Real-Time Weather and 3-day forecast (XM® subscription required, sold separately), Streaming Audio via Bluetooth® and Zagat Survey® Restaurant Guide and touch screen, and Bluetooth® Hands-free Phone System.