Rating The Injen IS1981P
The pipes look great. Adds a bit of class to an old engine space. The performance is as advertised . It accelerates my 300 ZX N/A like I had installed a turbo boost. Installation is a tough job. The 300ZX engine set up is very tight. Prepare to scrape knuckles. Wear latex gloves if possible. Removing old, brittle hoses required using a sharp wood chisel and a drywall saw. I recommend lubricating all male connections with silicone grease to more easily attach the pipe fittings and hoses.
Injen® - IS Series Short Ram Polished Silver Air Intake Extension Pipe