Nissan 370Z Forum - View Single Post - Hi-Flow Cats too loud!

2fast4thelaw · 08-21-2009, 12:08 PM

Have any of you felt that when you install Hi-Flow cats that it makes the Z a little to loud? I have a Gen3 intake, Stillen HFC's, and a Stillen CB and it makes my car really loud when I tromp on it! I am almost considering putting the stock Cats back in to tone it down a little. I like the power gain and greatly improved throttle response and top-end but I am not sure I like the sound.

08-21-2009, 12:08 PM	#1 (permalink)
2fast4thelaw Enthusiast Member Join Date: Feb 2009 Location: Denver Co Age: 50 Posts: 403 Drives: 09 370Z Sport/MT6 Rep Power: 16	Hi-Flow Cats too loud! Have any of you felt that when you install Hi-Flow cats that it makes the Z a little to loud? I have a Gen3 intake, Stillen HFC's, and a Stillen CB and it makes my car really loud when I tromp on it! I am almost considering putting the stock Cats back in to tone it down a little. I like the power gain and greatly improved throttle response and top-end but I am not sure I like the sound.