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06-24-2025, 01:49 PM
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#1 |
 Drives: Camaro 2SS Join Date: Jan 2017
Location: Calgary, AB, Canada
Posts: 196
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Product code for NPP exhaust replacement kit (automatic)
Hi all,
I am sorry if it is has been posted before, I can't find 100% accurate info about it and I thought it is safer to ask here. I need to replace the NPP exhaust on my car, automatic. What are the exact GM product codes for the whole replacement kit from the cats back? Quad tip NPP exhaust, automatic SS. I got the whole thing bent and pushed in by accident and it can't be "stretched" back. The cats are good, the rest has to be replaced with OEM if I want it to sound the same. I don't want aftermarket, I love the original NPP sound with the valve fuse pulled out. Thank you.  P.S. I can't believe I have been driving this thing for almost 8 years now and I am not ready to part with it yet. I just need its original raspy sound back. Cheers to all that are still enjoying their Camaros.
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2017 2SS stock
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06-24-2025, 07:52 PM
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#2 |
            
Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017
Location: East Tennessee
Posts: 13,151
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I think it's 84897450.
https://www.gmpartscenter.net/oem-pa...embly-84897450 You probably won't like the price, though, if it's even available from the factory (sigh)...
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2018 Camaro 2SS — G7E MX0 NPP F55 IO6
735 rwhp | 665 rwtq Magnuson TVS 2300 80mm pulley | Kooks 1 7/8" LT headers | JRE smooth idle terminator cam | LT4 FS & injectors | TSP forged pistons & rods JMS PowerMAX | DSX flex fuel kit | Roto-Fab CAI | Soler 95mm LT5 TB | 1LE wheels | 1LE brakes | BMR rear cradle lockout | JRE custom tune 1100 - 1/30/18 | 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 | 3800 - 2/26/18 4300 - 2/27/18 | 4B00 - 3/01/18 4200 - 3/05/18 | 4800 - 3/14/18 5000 - 3/16/18 | 6000 - 3/19/18 |
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07-02-2025, 08:02 AM
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#3 |
 
Drives: 2022 Camaro zl1 Join Date: Jun 2023
Location: Tx
Posts: 71
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Yeah probably cheaper to find one someone has replaced with aftermarket and get it shipped to you.
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07-02-2025, 09:18 AM
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#4 |
 Drives: 2019 Camaro 1SS1LE Join Date: Jan 2024
Location: Utah
Posts: 370
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Any decent exhaust shop can bend pipe and replace the factory stuff. If everything from the cats forward is good/straight, the only other parts you really need to get are the AFM valve and NPP muffler. Everything else is just pipe.
Edit: FWIW if you still have the factory damaged piping & components, if the AFM valve and NPP muffler are in good shape, the exhaust shop should be able to salvage them and just put them on. As far as it sounding 100% like the factory exhaust, I don't think the crushed vs non-crushed pipe is going to make a difference. If anything you might get a slightly deeper tone in areas where cross sectional area has been increased. I highly doubt you'll be able to notice it any difference in tone it'll be so subtle.
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2019 1SS1LE M6 Shadow Gray Metallic
ProCharger D1X Race Kit - 4.25" Pulley || GPI Pistons/Rods - ACL Bearings - ARP Hardware || LME Timing Chain Guide || Katech C5R Timing Chain || Katech OE Spec Billet Oil Pump || OE Ported Heads || CHE Trunnion Upgrade || BTR 220 Cam - BTR .660" Dual Springs - GM Racing "Caddy" Lifters - BTR 3/8" Pushrods (7.825") || ATI Balancer || LT4 Injectors || LT4 HPFP || JMS BAP || DSX Flex Fuel || LT2 Intake Manifold || LTH (Catless) || Stainless Works Redline Series NPP || 91 + 8oz Boostane 7/26/2024 Tuning in progress Last edited by GreyGhost702; 07-02-2025 at 10:05 AM. |
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