Exhaust For 03 bonneville ssei
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Giangrande99
- LE Member
- Posts: 4
- Joined: Tue Oct 04, 2016 9:50 am
- Year and Trim: 2003 Pontiac Bonneville SSEI
Exhaust For 03 bonneville ssei
Looking for decently loud sounding exhaust/Mufflers for my 03 ssei anybody know any good ones? and length of the mufflers so i know what looking for
- nos4blood70
- Certified Bonneville Nut

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- Year and Trim: 2003 SLE
- Location: Chicago, IL
Re: Exhaust For 03 bonneville ssei
These cars sound so awful. I wouldn't recommend doing anything to the exhaust except maybe replacing the mufflers. Either way, it'll sound like a giraffe puking.
- 98SSE
- Posts like an LN3

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Re: Exhaust For 03 bonneville ssei
I agree with this. These engines do not sound good lol. The best I've heard was headers with no resonator and stock mufflers. My dad's gtp is stock with no resonator and it has a nice little rumble to it. Check out some youtube videos for different set ups. Zzp, MagnaFlow, and SLP are common mufflers used.nos4blood70 wrote:These cars sound so awful. I wouldn't recommend doing anything to the exhaust except maybe replacing the mufflers. Either way, it'll sound like a giraffe puking.
2001 Bonneville SSEI (His) - Gen V/3.5 pulley/CAI/SD Headers/ZZP 1.9 Rockers/90# Springs/Magnaflow Converter/HP Tuners/180* T-Stat/Trans-Go Shift Kit/TruCool Transmission Cooler/ F-Body Front Brakes/STS Rear Brakes/Tint/GXP Interior September 2015 COTM
2007 Trailblazer SS (Hers) - PCM4Less tune, E-Fans, SLP PowerFlo Exhaust, Hotchkis Sways, PML Tranny Pan, Powerstop Brakes,
"Big 3", Tint
2004 CTS-V (His) - B&B Exhaust, LS7 clutch, HIDs, LED fogs, Powerstop Brakes, Tint

2007 Trailblazer SS (Hers) - PCM4Less tune, E-Fans, SLP PowerFlo Exhaust, Hotchkis Sways, PML Tranny Pan, Powerstop Brakes,
"Big 3", Tint
2004 CTS-V (His) - B&B Exhaust, LS7 clutch, HIDs, LED fogs, Powerstop Brakes, Tint

- Pair of SSEI
- SSEi Member

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- Year and Trim: 1997 SSEI 40th
Re: Exhaust For 03 bonneville ssei
Hard to get the 3800 to sound nice. I have Catco muffler with resonator, when I did remove the cat and resonater it sounded way too loud, particularly at WOT. Sounded like a ricer. Not sure I would remove resonator had a drone in the cabin at highway speeds.. I have added back the resonater and cat. I have nice sound at idle (good rumble).
1997 SSEI 3.8 L67 149,000 miles Moonroof, Polished Gen V w/L32 intake, 3.5 mod. Pulley, SD Headers, Intense Stage 1 tune, MagnaFlow Cat 94109, Catco catback, Autolite 103s, 180 stat, Intense FWI, 1995 OEM trans cooler, Cleared corners. KYB Excel G struts and shocks.
2006 Malibu SS 3.9 60 degree V6, Variable Valve, Tap shift Trans, 100,000 miles Bone stock
SOLD - 1992 SSEI FWI PEM Catco Cat NGK TR55 180 stat Original owner 209,000 miles Original Engine and Trans - Still strong when she left
2006 Malibu SS 3.9 60 degree V6, Variable Valve, Tap shift Trans, 100,000 miles Bone stock
SOLD - 1992 SSEI FWI PEM Catco Cat NGK TR55 180 stat Original owner 209,000 miles Original Engine and Trans - Still strong when she left
Re: Exhaust For 03 bonneville ssei
If you feel like you want to do an aftermarket muffler, I personally think the Borla ProXS mufflers sound the best. I have the SLP PowerFlo catback on my Regal and I think it is horrible but I am not willing to spend more money on exhaust work.
Also, make sure you have a cat/resonator or else it is gonna sound that much worse.
.02
Also, make sure you have a cat/resonator or else it is gonna sound that much worse.
.02
- WhiteArrow3800
- Moderator / Social Dev

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2001 Bonneville SSEi
2009 Pontiac G8 GT - Location: Williamsburg, Va
Re: Exhaust For 03 bonneville ssei
I went with Magnaflow on mine. Noticeably louder, a bit deeper of a tone without droning on the highway. Should be about 14" long.

'93 SSE "Guinevere" RIP 1993 - 2019
'01 SSEi "Chloe" Mods: Intense FWI | GenV | WBS Intercooled | 3.2 MPS | 1.9 YT Rockers | SSAC Headers | N* TB | TEP Trans | 3.29 FDR | Torsen LSD
DTM Tuned | Dual AeroForce | Solid Mounts | 255 Walbro Pump | Fuel Logs | GXP STB & Sway Bars | CSS Lowering Springs | GXP Brakes | Disabled DRL
Magnaflow Mufflers | Magnaflow Cat | GXP Seats & Trim | 35 % Tint | Cleared & Tinted Tails | repinS Retrofited Morimoto Mini H1 | 19" GT500 Wheels
'09 G8 GT "Abigail" Mods: Rotofab | LS3 Heads, Intake & Cam | Kooks LT | Solo Exhaust | Tien Springs w/ GXP Struts | Whiteline Swaybars | BMR Subframe Connectors
Achievements: Guinevere - 264k mi | 16.27 @ 84.10mph | March '11 COTM :: Chloe - 223k mi | 13.85 @ 102mph | January '09 COTM :: Abigail - 192k mi | 12.85 @ 112mph
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2003 SSEi
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LOTS of Mods
Re: Exhaust For 03 bonneville ssei
More Resonators the better
Closest is a 18" 4" round Magnaflow Resonator. Further back is a 36" 6" round Magnaflow resonator


Closest is a 18" 4" round Magnaflow Resonator. Further back is a 36" 6" round Magnaflow resonator


Re: Exhaust For 03 bonneville ssei
I like the deep sound of magnaflow. It is loud yet not irritating.
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Sether
- SLE Member

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- Year and Trim: 2000 SSEi
RIP 2001 SSEi - Location: Vancouver Wa
Re: Exhaust For 03 bonneville ssei
I agree with Pauller I have a 3 inch downpipe with high flow cat and 2.5 inch pipe all the way to a Magnaflow resonator then into 2 Magnaflow straight through mufflers. Not sure what length of any of them are. They sound great though for a 6 cylinder. very deep and not to loud or irritating even on the high way. If you want some suggestions go to a local exhaust shop thats reputable.pauller wrote:I like the deep sound of Magnaflow. It is loud yet not irritating.
Also exhausts work is worth just getting new exhaust tips. Stock ones are ugly AF
Bonnie - 2001 Bonneville SSEi RIP in spaghetti never forgetti
Goldein - 2000 Bonneville SSEi Live forever.
2.25" I/C, Machined LIM, 42.5 Injectors, 3.0 S/C Pulley, 72mm TB, SD Headers+ZZP DP+magnaflow Catback, ZZP tune.
Goldein - 2000 Bonneville SSEi Live forever.
2.25" I/C, Machined LIM, 42.5 Injectors, 3.0 S/C Pulley, 72mm TB, SD Headers+ZZP DP+magnaflow Catback, ZZP tune.



