just starting need some ideas on next mod for 97 se - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 04-13-2006, 10:57 PM   #1
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Default just starting need some ideas on next mod for 97 se

I just added a K&N intake and am very pleased with the sound (except for startup its very loud & ratling like). Now I am not sure what the next mod should be? Do I add different exhaust or do headers, any ideas would be great.
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Old 04-14-2006, 01:11 AM   #2
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180* Thermostat should come soon before doing any more heavy mods.

I would do exhaust personally.
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Old 04-14-2006, 01:22 AM   #3
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Headers my be alittle extreme for NA but I could be wrong. Ported Exhaust manifolds would probably be more suited to a NA and be much cheaper too. Rockers are always good too.

Ed
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Old 04-14-2006, 04:13 AM   #4
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Welcome to the 97SE club!

I did dual exhaust first, followed by K&N intake. I lost some low end torque with the dual exhaust, but got it back with the K&N intake. Yes, the K&N intake makes the loud snorkelling sound for the first minute after you start it. You'll get used to it.

I'd recommend dual exhuast muffler. I went with Magnaflow and am very happy with it, with a pair of oval Ractive tips.

My next planned performance mods are suspension. I want to put in FE2 swaybars and springs, energy suspension endlinks, and I'm hoping to convert to ELC if I can make it happen, so that means new struts.

Hoping to get the FE2 parts and ELC from another member parting out a 95 SSEi.
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Old 04-15-2006, 10:10 PM   #5
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Hey bugsi do you have any pics of your exhaust? I have heard others talk about some low end torque loss, is this for both a dual tip muffler and dual exhaust. Is it even worth it for me to add dual exhaust with a NA. Or would i be getting better results with a double tip muffler?
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Old 04-15-2006, 11:47 PM   #6
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Quote:
Originally Posted by 1001miles
Hey bugsi do you have any pics of your exhaust? I have heard others talk about some low end torque loss, is this for both a dual tip muffler and dual exhaust. Is it even worth it for me to add dual exhaust with a NA. Or would i be getting better results with a double tip muffler?
To clarify: Dual exhaust on a Bonneville through 1999 means "using a single-inlet, dual-outlet (camaro style) muffler." That'* what I did. My parts and install pics are all in this thread:

http://www.bonnevilleclub.com/forum/...ic.php?t=40304

(more pictures are further down in that thread.)

Is it worth it to add dual exhaust (that is, going to a single-in, dual-outlet muffler) to your L36? Personally, I totally think it is, so long as you also have a K&N intake, which you do. It adds a tremedous throaty growl that really springs to life when you step on the "happy pedal". Because I did the muffler first, I noticed the drop in low-rev power. After I did the K&N intake, I was happy to have my power back.

I personally wouldn't bother changing out the cat to a high-flow model, because I honestly don't think it will result in any meaningful added power. I'm speculating on this though, I haven't done it so I don't actually know for certain. I'd also keep the stock resonator and all the stock exhaust pipes back to the muffler, since they are stainless.

I also don't think there'd be any significant value in swapping out your stock exhaust manifolds for headers, since the stock manifolds are short and very header-like to begin with. There might be some value in porting the stock manifolds. On the other hand, I doubt headers would hurt anything. I think there'* some supercharged club members who have the TOGs headers.
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Old 04-16-2006, 01:46 PM   #7
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Thanks a ton Bugsi, your backend looks pretty sweet. That is the look I am going to aim for. You've been a big help thanks man.
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Old 04-16-2006, 01:55 PM   #8
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Default Re: just starting need some ideas on next mod for 97 se

Quote:
Originally Posted by 1001miles
I just added a K&N intake and am very pleased with the sound (except for startup its very loud & ratling like). Now I am not sure what the next mod should be? Do I add different exhaust or do headers, any ideas would be great.
A PCM with that t-stat would be a nice little pick up.
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Old 04-16-2006, 08:53 PM   #9
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Wheres a good place to pickup a pcm? I have seen intense mentioned, are they pretty decent. Am i able to re-calibrate the pcm after i have it? i noticed that intense gives you a ton of specs to choose from but i can modify that myself if i later add a mod that requires different settings?
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Old 04-16-2006, 08:57 PM   #10
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Quote:
Originally Posted by 1001miles
Wheres a good place to pickup a pcm? I have seen intense mentioned, are they pretty decent. Am i able to re-calibrate the pcm after i have it? i noticed that intense gives you a ton of specs to choose from but i can modify that myself if i later add a mod that requires different settings?
INTENSE is the Leader in the Bonneville development for perfromance...

you just want to get a Intense Standard PCM, and you will be a happy Bonneville Owner
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