Nissan 370Z Forum - View Single Post

brucelidat · 08-28-2011, 05:18 PM

Won't it get pretty loud with the test pipes? But wow, 40whp is impressive. Just wondering since TPs seem to get better gains than HFCs and both are pretty much illegal in California, why do most people seem to get the HFCs?

08-28-2011, 05:18 PM	#6272 (permalink)
brucelidat A True Z Fanatic Join Date: Jun 2011 Location: temple city, ca Posts: 2,432 Drives: 2011 370z 7AT GM Sp Rep Power: 30	Won't it get pretty loud with the test pipes? But wow, 40whp is impressive. Just wondering since TPs seem to get better gains than HFCs and both are pretty much illegal in California, why do most people seem to get the HFCs?