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By M_S - 17 Years Ago
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Now that I have the Blue Thunder/Demon on the 'bird and the MSD dizzy (found out the hard way why many of you questioned me running the Loadomatic), I am ready for the Ford Power Train headers.
Since I screwed up last time with the dizzy, I thought I would come to you guys first for suggestions on the exhaust. You pretty much know the basics already, BT intake/525 Road Demon/ FPT headers and that's pretty much it beyond stock. Since I rarely drive the thing hard, I am thinking about 2.25 pipes (unless you guys convince me there is a reason to go down to 2").
Mufflers are the main thing I am looking for input on. My initial thought is to use Borla's (we did a dyno shoot out for HR and they were the only one's to increase hp over straight pipe). But, since I am not trying to squeeze every bit of power out of it (and because a 312 is not a SBC test mule) I am open to mufflers that might have a nicer sound with the Y. Right now the car appears to have a Midas special on it, just long turbo style mufflers (with a few holes), no resonators and straight 2" out the back. It's not too loud now, so I don't mind suggestions that will increase noise a bit.
Thanks in advance
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By bird55 - 17 Years Ago
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Search the tech forum under "exhaust". There are some options there and some shots of what I did about mufflers. 2.25 would work but I don't know if you would know the difference without a before and after dyno test. I use 2" - easier to bend in and around and works great.
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By Marc - 17 Years Ago
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I've had a set of Smitty's on mine for close to 10 years now. They aren't a whole lot louder than stock at idle, and to me, they sound just great when you step on it. Even my scrub buddies comment on how good it sounds.
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