Series III 3800 intake and exhaust tips?

**2004GrandPrixGT1** · 03-14-2012

Stock 04 3800 just did tune up and planning to do a bit of minor work to the car. Has 135,000 miles. My plan was to put in a different intake, i can buy a 3' aluminum tube to replace the factory flex tubing and was thinking a spectre filter. Now one of my questions was cone size, short and fat, long and skinny? Which provides most flow. I was also planning on replacing the factory mufflers with Borla XS Pro's and removing the resonator. I know that everyone says it has to much drone but thats not really a problem for me. I was just looking fo advice on the intake and wondering what you guys have done for the exhaust.

**Fivefingerdeathpunch** · 03-14-2012

biggest filter you can find.

I run a 9in AEM off ebay.

Go ahead do the mufflers, keep the res.

**blueguy** · 03-14-2012

Resonator not only controls the drone...it controls the rasp factor as well.

Keep it.

For your own well being.

**2004GrandPrixGT1** · 03-14-2012

I'm fine with the rasp factor, thats my reasoning for being okay with taking the resonator off.

**blueguy** · 03-14-2012

So, you're okay with the car sounding like crap?

Logical.

**2004GrandPrixGT1** · 03-14-2012

I guess thats your opinion, besides, if i do decide i dont like it i can just put it back on. But otherwise you guys like the borla mufflers and spectre thoughts?

**blueguy** · 03-14-2012

Not really much of an opinion.

It's a fact, just go youtube any resonator-less 3800, granted most any FWD 3800 car sounds junky...but the quieter, the better. And no rasp is always the key.

**Odi** · 03-14-2012

meh. stock is win.

**2004GrandPrixGT1** · 03-14-2012

If i dont like it ill put it back in.

**Slick2500** · 03-14-2012

If you take it out put a glasspack in its place it sounds better than nothing there.

**2004GrandPrixGT1** · 03-15-2012

Put the glasspack in then have two borla mufflers?

**Bio248** · 03-15-2012

a glasspack is a cheap resonator. it'll last 1/4 as long and do 1/4 the work.

**2004GrandPrixGT1** · 03-15-2012

Doesnt really answer my question there.

**blackflag** · 03-15-2012

Search for a DIY intake. There are a lot of threads on it.
As for the exhaust, seriously go on youtube and listen to a bunch of clips and see if you find anything close to what your looking for soundwise. I have only heard 1 3800 that sounded decent.

**blackflag** · 03-15-2012

I found the clip that I think is decent. Brett's GENV GTP with Borla Pro XS exhaust - YouTube

**2004GrandPrixGT1** · 03-16-2012

Thats pretty much what I was hoping for. So a thrush glasspack in place of the normal resonator? Here's a clip i thought was pretty nice.
Grand Prix Exhaust Borla Pros vs Stock - YouTube

**blueguy** · 03-16-2012

Glasspack will give a deeper tone over the factory resonator.

But.

The factory resonator will keep the exhaust the quietest.

**2004GrandPrixGT1** · 03-16-2012

Okay, good to know. I'm looking for a pretty to very deep exhaust note. Any other tips?

**DreadMcLaren** · 03-16-2012

Put headers on it instead. Makes the exhaust sound a little better and your engine will thank you.

**2004GrandPrixGT1** · 03-16-2012

With headers will i shoot up any engine codes? If i leave the cat in. Any good, cheap headers you like?

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