Aftermarket Exhaust Rear Bumper Belly Pan

Hary Gahtoe · 02-24-2026, 11:32 AM

Finished out full cat back exhaust and the bottom of the bumper now was going to have huge aerodynamic drag and probably get destroyed now that the factory suitcase exhaust was out.
Found a really well designed and functional belly pan.
If anyone changes their exhaust system these helps save the bumper and gas due to reducing drag

sscentex · 02-24-2026, 11:48 AM

Just ordered one from Griffin Motorsports.

Hary Gahtoe · 02-24-2026, 01:43 PM

Thanks to Griffin Motorsports
Fabulous quality and great finish.
Thank shipping for the sweet treat
Hary

beowulf556 · 02-24-2026, 10:21 PM

I have the same exhaust and belly pan! Looks great

NYTMARE23 · 02-24-2026, 11:55 PM

Stupid question, but is there any "concrete" evidence of that pan actually helping with drag numbers or rear bumper "fluttering" in the wind? Last year for this reason, I had a guy purposely follow me down the interstate at 80mph...BRIEFLY went to 100 and he said my bumper was not fluttering at all

(I too, have an axle-back exhaust.). Not saying it isn't worth it, just wondering if there is actual "proof" out there that it REALLY makes a difference.

. Maybe it does for those tracking at speeds higher than 100mph, but not so much for everyday driving with occasional pulls.

2SS Capt · 02-25-2026, 01:35 AM

This is the one you want, I know Gabe personally and he is making top quality stuff... He is extremely passionate about doing things right...

https://www.griffin-motorsports.com/...mper-belly-pan

sscentex · 02-25-2026, 08:33 AM

Quote:

Originally Posted by NYTMARE23

Stupid question, but is there any "concrete" evidence of that pan actually helping with drag numbers or rear bumper "fluttering" in the wind? Last year for this reason, I had a guy purposely follow me down the interstate at 80mph...BRIEFLY went to 100 and he said my bumper was not fluttering at all

(I too, have an axle-back exhaust.). Not saying it isn't worth it, just wondering if there is actual "proof" out there that it REALLY makes a difference.

. Maybe it does for those tracking at speeds higher than 100mph, but not so much for everyday driving with occasional pulls.

Probably minimal effect. Is it doing something? Yes and the video on griffins site does show air getting caught back there. Is it drastic? Doubtful. But I’ve been wanting to do something to the car for a month or so and figured why not.

NYTMARE23 · 02-25-2026, 10:03 AM

Quote:

Originally Posted by sscentex

Probably minimal effect. Is it doing something? Yes and the video on griffins site does show air getting caught back there. Is it drastic? Doubtful. But I’ve been wanting to do something to the car for a month or so and figured why not.

Fair enough.

. I'm sure there's no "right" or "wrong" answer here, I was just wondering if there was some "proof" or "numbers" out there for these.

. I did check out the site and they put some good info about it on there. May not be for me personally since I don't daily drive mine, don't track it, and definitely did not get a ZL1 for gas mileage savings

BUT maybe someday I'll think about it(that is, if I can convince my wife to let me spend $200+ dollars for it)

Junction65 · 02-25-2026, 10:47 AM

If I changed out the exhaust and deleted the suitcase then it would be a no brainer to add a rear bumper belly pan IMHO. Basically cheap insurance.

Of course if your rear bumper starts sagging and gets out of alignment due to wind resistance, it could be resolved with zip ties as shown in other threads.

Top corner of rear bumper not flush to fender

arpad_m · 02-25-2026, 12:14 PM

Quote:

Originally Posted by Junction65

If I changed out the exhaust and deleted the suitcase then it would be a no brainer to add a rear bumper belly pan IMHO. Basically cheap insurance.

Of course if your rear bumper starts sagging and gets out of alignment due to wind resistance, it could be resolved with zip ties as shown in other threads.

Top corner of rear bumper not flush to fender

That's a legendary fix, I've applied it to my car, too, and rear bumper gaps have been sitting perfect for several years now.

However, the 2019+ bumper was redesigned along with the taillights, and I'm not sure the fix applies so well there.

Junction65 · 02-25-2026, 12:47 PM

Quote:

Originally Posted by arpad_m

That's a legendary fix, I've applied it to my car, too, and rear bumper gaps have been sitting perfect for several years now.

However, the 2019+ bumper was redesigned along with the taillights, and I'm not sure the fix applies so well there.

As always, you come in with the relevant info. Good to know.

Results may vary obviously. I'd still go with the cheap insurance IF I had a suitcase delete situation.

02-24-2026, 11:32 AM	#1
Hary Gahtoe Drives: Camaro SS Join Date: Sep 2025 Location: Bellinum Wa Posts: 34	Aftermarket Exhaust Rear Bumper Belly Pan Finished out full cat back exhaust and the bottom of the bumper now was going to have huge aerodynamic drag and probably get destroyed now that the factory suitcase exhaust was out. Found a really well designed and functional belly pan. If anyone changes their exhaust system these helps save the bumper and gas due to reducing drag Attached Images

02-24-2026, 11:48 AM	#2
sscentex Drives: 2016 Camaro SS Join Date: Oct 2025 Location: Central Texas Posts: 118	Just ordered one from Griffin Motorsports. __________________ 2016 Camaro SS A8 Borla ATAK Tuned Drag DR77 Wheels

02-24-2026, 01:43 PM	#3
Hary Gahtoe Drives: Camaro SS Join Date: Sep 2025 Location: Bellinum Wa Posts: 34	Thanks to Griffin Motorsports Fabulous quality and great finish. Thank shipping for the sweet treat Hary Last edited by Hary Gahtoe; 02-24-2026 at 08:20 PM.

02-24-2026, 10:21 PM	#4
beowulf556 Drives: Camaro SS 1LE M6 Join Date: Feb 2024 Location: Las Vegas Posts: 458	I have the same exhaust and belly pan! Looks great __________________ 2018 Camaro SS 1LE M6 Stainless Works Headers & X pipe \| Redline Axleback \| E85 \| Rotofab \| Soler Ported TB \| LT2 Manifold

02-24-2026, 11:55 PM	#5
NYTMARE23 NYTMARE23 Drives: Black 2023 ZL1 A10 Join Date: Oct 2022 Location: Nebraska Posts: 669	Stupid question, but is there any "concrete" evidence of that pan actually helping with drag numbers or rear bumper "fluttering" in the wind? Last year for this reason, I had a guy purposely follow me down the interstate at 80mph...BRIEFLY went to 100 and he said my bumper was not fluttering at all(I too, have an axle-back exhaust.). Not saying it isn't worth it, just wondering if there is actual "proof" out there that it REALLY makes a difference.. Maybe it does for those tracking at speeds higher than 100mph, but not so much for everyday driving with occasional pulls. __________________ 2023 A10 ZL1 "NYTMARE" ‐‐--------------------------------------------------------

02-25-2026, 01:35 AM	#6
2SS Capt 2020 Shadow Gray 2SS Drives: 2020 2SS - A10, NPP, MRC, CAI Join Date: Dec 2019 Location: SoCal Posts: 3,816	This is the one you want, I know Gabe personally and he is making top quality stuff... He is extremely passionate about doing things right... https://www.griffin-motorsports.com/...mper-belly-pan __________________ 2020 SGM 2SS - A10, NPP, MRC, Red Calipers, Black Fender Badge, Footwell Lighting *After delivery:* - GMP CAI, GMP Black Strut Tower Brace, MRR017 1LE Wheels, SS Armrest, Black Fuel Door, Stainless Pedals, SS Wheel Caps, GM Splash Guards, DD Smoked LED Markers, Smoked Rear Reflectors, Mishimoto Catch Can, Xpel PPF-Full Front & Rockers, 35% Tint, CeramicPro coated, RST Stainless Brake Lines, Castrol SRF, MSD Plug Wires, Mamo V3 Ported TB *Left: My "fun" ride (475 HP). Right: My "work" ride (52,000 HP): a Gulfstream G600. One's top speed is 180 Mph, the other, 620 Mph. BOTH AWESOME to operate...*

02-25-2026, 10:47 AM	#9
Junction65 Drives: 2011 GMC Sierra 1500 Join Date: Jun 2022 Location: Alabama Posts: 557	If I changed out the exhaust and deleted the suitcase then it would be a no brainer to add a rear bumper belly pan IMHO. Basically cheap insurance. Of course if your rear bumper starts sagging and gets out of alignment due to wind resistance, it could be resolved with zip ties as shown in other threads. Top corner of rear bumper not flush to fender __________________ 2023 LT1 M6 Coupe - Black (GBA) on Black (H1T) - Build Date: 8/22 Blade spoiler (5ZU), Recaro seats (AQJ), Technology pack (Y3W) LT1 PBC engine - Shane Parker Current mileage: 400

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