Hi-Flow Cats after tune - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

richard grimsley · 10-24-2021, 08:15 PM

Question:

Have an Ls7 w/ P1x & multitude of other mods etc. Currently running LT’s w/no cats but, ….cats required to pass State inspection.

Would anyone know if installation of cats will effect tune?

Appreciated.

0stones0 · 10-25-2021, 02:29 AM

It’ll definitely breath differently with the cats so, I’d say yes, it will affect the tune.

AlanRubin · 10-25-2021, 03:02 AM

Hiflow, not as much as factory cats, so if you need cats to pass, then get the Hi-flow.
IF they only need to SEE them, then, as I did, gutted mine. They're there, but there
is nothing in them.

richard grimsley · 10-25-2021, 09:30 AM

AlanRubin & 0stones0; ty much for your response and advice. I am much appreciative.

v/r
<R>
Sua Sponte ~

10-24-2021, 08:15 PM	#1
richard grimsley GRIM Drives: 2015 Camaro Z/28 Join Date: May 2010 Location: Marlton, NJ. Posts: 158	Hi-Flow Cats after tune Question: Have an Ls7 w/ P1x & multitude of other mods etc. Currently running LT’s w/no cats but, ….cats required to pass State inspection. Would anyone know if installation of cats will effect tune? Appreciated.

10-25-2021, 02:29 AM	#2
0stones0 It don’t come easy. Drives: 2010 2SS RS M6 Join Date: May 2014 Location: WI Posts: 2,205 View My Garage	It’ll definitely breath differently with the cats so, I’d say yes, it will affect the tune. __________________

10-25-2021, 03:02 AM	#3
AlanRubin Banned Drives: 2010 LS Join Date: Feb 2021 Location: Pgh Posts: 411	Hiflow, not as much as factory cats, so if you need cats to pass, then get the Hi-flow. IF they only need to SEE them, then, as I did, gutted mine. They're there, but there is nothing in them.

10-25-2021, 09:30 AM	#4
richard grimsley GRIM Drives: 2015 Camaro Z/28 Join Date: May 2010 Location: Marlton, NJ. Posts: 158	AlanRubin & 0stones0; ty much for your response and advice. I am much appreciative. v/r <R> Sua Sponte ~