Exhaust help!!

[Cam122]

Hi all, I'm new here. I have a 2008 Grand Prix Base model with a v6. I've been researching about modding the exhaust by installing a new muffler or deleting the resonator, cats, muffler etc. But I can only seem to find sound clips of v8 Grand Prix's. I don't want to create an unpleasant gurgling sound, just a deeper tone than stock. Any advice would be much appreciated, thanks in advance!

Cam

[Fivefingerdeathpunch]

Search a little harder.

There are a million threads on 3800 exhaust. They all will pretty much say that only borla, and maybe dynomax/dynoflow? mufflers and the stock setup sound the best.

Chambered style mufflers like magnaflow and flowmasters will drone and make you hate it.

[91parkave]

Magnaflow isn't chambered

[Fivefingerdeathpunch]

Minor details, they still sound like poop on a 3800.

[91parkave]

Minor details, they still sound like poop on a 3800.

Lol true unless you have a resonator and there more bearable.

[JDrach]

I beg to differ on that magnaflow statement....

[coolone]

Hooker Max-Flow's!!! Don't delete resonator if you don't want rasp...
But the Maxflows sound great (I have em with 3" exhaust), check google...

[DanPrixGTP]

There is a thing called YouTube.

It comes quite handy, you should check it out.

[Cam122]

There is a thing called YouTube.

It comes quite handy, you should check it out.

I've been watching sound clips of modded exhausts on YouTube. Its hard to find a 3800 with a modded exhaust that isnt supercharged.

[smoke14]

I don't think the supercharger changes the exhaust note. It's all personal preference. Go on YouTube and search gtp Flowmaster, gtp Magnaflow, gtp Borla, etc.

[GrandprixGT01]

Magnaflows sound nice. I get no drone and its a nice lower sound.

[JDrach]

^^ Same here

[JDrach]

Unless you have a sick azz cam, or full borla, I would focus on the SC whine lol

[txslow6]

Summit racing turbo mufflers. Hands down the best sounding muffler for a GP. A little louder and deeper sounding than stock, but not raspy and obnoxious when you get on it.

[blueguy]

Dynomax Super Turbo's are great as well.

Or, toss a stupid huge cam in there and every muffler will sound good.

Also, blower 3800's sound just as bad as N/A 3800's. So, all the videos will apply.

[ricksgpgtcolleen]

I REALLY like how mine came out. 00 GT: HV3, OE exh manis, 2.5" d/p, ubend del, res del, h/f cat, OE mufflers. I'll link you via PM to my FB vid of the thing idling so you can hear what a mildly modded GT can sound like. I set all my stuff to Friends Only, so I don't expect you to be able to watch the 15-30 second vid...but I can try.

[blueguy]

Anything 3800 sounds great at idle.

No resonator 3800 anything except turbo cars sound like crap.

Truth.

Can't hide it even with stock mufflers. Especially stock mufflers. Sounds like a cat choking on something.

2000 GTP exhaust no resonator - YouTube Getting rid of the cat doesn't really do much either, just makes the tone a little deeper.

Stock mufflers with a resonator delete as well, rasp.

Grand Prix GTP resonator delete - YouTube

Every GP NEEDS a resonator, it's not really an option for a somewhat desirable exhaust note.

And well, if you like that noise...then more power to you. I put a resonator back in my car after a Honda guy told me it sounded worse than his.

[JDrach]

Well in my case with the magnaflows, my car sounded like a 4cyl cobalt or something with res and no cat, SD headers. Got a cat put in place n no res, and now it sounds like a ****ty 3800. But it sounds far better than it did with the resonator, and not even louder with drone. Pretty changed the tone of it. But i will sound, our cars sound "decent" with after market stuff at idle, cammed, or under 2k rpms.

[blueguy]

Both of my Cobalt's have had less rasp than most 3800's out there. It's all in the setup.

[dbextreme]

I've had stock, Blowmaster, straight pipe, Magnaflow, Turbo's (mufflers), Purple Hornies, Glass Packs, and several on multiple V8 and V6 cars. Each BRAND of car is different. Other then a nice stock setup, the Turbo's would be one step up from stock with your stock resonator or large "resonator substitute". Next would be Borla.

On my personal cars I run Magnaflow on my Firebird and Borla on my GP. Really pleased with both brands

If you put Blowmasters on, grab you a flat brim hat and get you some spinning hubcaps cause you'll sound like a botched up ricer...