Headers -> stock cat back? - Page 2

arpad_m · 10-28-2022, 12:42 PM

Quote:

Originally Posted by Bwaahhh

I am planning on doing Kooks LT Headers to Kooks green cats to stock NPP.

Hard to find this EXACT setup on youtube.

Anyone have sound clips or close to GA?

Where in GA are you? I have this exact setup, although mine is a 2018 without the crazy 2019+ gm burble tune.

Katech_Mike · 10-28-2022, 02:39 PM

Quote:

Originally Posted by ST1LE

Even the ZL1 owners that mod their cars to very high HP numbers and blow out the Kooks Green Cats, they don't melt the cat, the cats just deform inside due to pressure.

Again, I have seen a lot of cat complaints and issues but never one from an NA build. Not saying it isn't possible, just never seen that myself.

There are some great builders and tuners on here, hopefully one of them will chime in.

They do actually melt on tracked supercharged cars. NA cars don't have any problems with cats typically.

04DetroitLS · 10-30-2022, 08:45 AM

thanks all who replied

ST1LE · 11-02-2022, 07:02 AM

Quote:

Originally Posted by Katech_Mike

They do actually melt on tracked supercharged cars. NA cars don't have any problems with cats typically.

Thank you, Mike!

Mohawk_1SS · 11-02-2022, 07:15 PM

Just to add another data point, I did the ARH long system (cats w/ x-pipe) to the stock NPP, and like others have said, its definitely loud enough. Even stealth mode isn't so stealthy on a cold start or WOT. That being said, I definitely felt as though the quality of the sound was better stock. If I had to describe it, i'd say exhaust note is much more 'tinny' or high pitched than stock. Though that could have to do with the x-pipe. Don't get me wrong, it doesn't sound like a civic with a fart can exhaust or anything, but I'd actually like to go with an after market muffler to give it a deeper tone.I just don't want it to be any louder (mainly with regard to cold starts) for the sake of my neighbors.

10-30-2022, 08:45 AM	#17
04DetroitLS Drives: 2022 LT1 Join Date: Sep 2022 Location: FL Posts: 92 View My Garage	thanks all who replied

11-02-2022, 07:15 PM	#19
Mohawk_1SS Drives: 2019 Camaro 1SS M6 Join Date: Mar 2020 Location: Albany, NY Posts: 18	Just to add another data point, I did the ARH long system (cats w/ x-pipe) to the stock NPP, and like others have said, its definitely loud enough. Even stealth mode isn't so stealthy on a cold start or WOT. That being said, I definitely felt as though the quality of the sound was better stock. If I had to describe it, i'd say exhaust note is much more 'tinny' or high pitched than stock. Though that could have to do with the x-pipe. Don't get me wrong, it doesn't sound like a civic with a fart can exhaust or anything, but I'd actually like to go with an after market muffler to give it a deeper tone.I just don't want it to be any louder (mainly with regard to cold starts) for the sake of my neighbors.

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