Wondering get some rumble in exhaust 02 sle
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bonny02
- LE Member
- Posts: 1
- Joined: Thu May 05, 2016 3:10 pm
- Year and Trim: 2002 pontiac Bonneville sle
Wondering get some rumble in exhaust 02 sle
I was wondering be the best way to go about my exhaust get little more power and get some sound out of it
- nos4blood70
- Certified Bonneville Nut

- Posts: 9522
- Joined: Mon May 10, 2010 6:11 pm
- Year and Trim: 2003 SLE
- Location: Chicago, IL
Re: Wondering get some rumble in exhaust 02 sle
Welcome.
Since you're naturally aspirated, there isn't much power to be gained from any exhaust work. That said, replacing the front manifold with a power log from ZZP will give modest gains. Replacing the down pipe with a 2.5 inch unit will also help. However, the power you'll get from these will be barely noticeable, and I wouldn't consider it worth the money or effort.
Anything behind the down pipe will not give you any power, just change the sound. However, since these 3800s sound so awful, I would recommend leaving the stock resonator in place and just changing out the mufflers in back. I have some Flowmaster 44s and the car isn't too loud inside, just a little deeper than stock. There are still some days when I wish I had left the exhaust alone, but overall I'd say it's a nice little upgrade in tone.
Since you're naturally aspirated, there isn't much power to be gained from any exhaust work. That said, replacing the front manifold with a power log from ZZP will give modest gains. Replacing the down pipe with a 2.5 inch unit will also help. However, the power you'll get from these will be barely noticeable, and I wouldn't consider it worth the money or effort.
Anything behind the down pipe will not give you any power, just change the sound. However, since these 3800s sound so awful, I would recommend leaving the stock resonator in place and just changing out the mufflers in back. I have some Flowmaster 44s and the car isn't too loud inside, just a little deeper than stock. There are still some days when I wish I had left the exhaust alone, but overall I'd say it's a nice little upgrade in tone.
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DOMESTICated
- SLE Member

- Posts: 37
- Joined: Sun Oct 04, 2015 1:57 pm
- Year and Trim: 2000 Bonneville SSEi
Re: Wondering get some rumble in exhaust 02 sle
I think the 3800s sound good. Maybe im partial...LOL


