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post #1 of 9 (permalink) Old 09-15-2007, 02:09 PM Thread Starter
 
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What if?

What if I just cut out the resonator and just put in some straight pipe in its place? I have a 94 4.6l V8 still have the factory exhaust. I got rid of the violin case intake and now I can hear the intake air over the exhaust note. I'm just looking to make it a little louder but not looking for the drone.
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post #2 of 9 (permalink) Old 09-15-2007, 02:16 PM
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Cut the 3rd cat off too & get the shop to make you a "y" pipe. That will bring the sound up a little. **note: not emmisions compliant if the guy wants to be hard about it. If the car is running well already it would pass a sniffer test.

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post #3 of 9 (permalink) Old 09-16-2007, 03:22 AM
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My exhaust has undergone several changes...
Started with a cat back system. Nice sound, not too aggressive. I then swapped the cat system for a setup that had 2 hi-flow cats and a y-pipe. No 3rd cat and sounded a bit better. Definitely flowed better.
But then I moved to Cali. The smog nazis busted me on the setup, and I had to put on an OEM cat system. I have both, so I can swap out for smog checks...
I then found the mufflers were rusting from the inside out, and yanked them putting in straight pipes, leaving the resonator. The catch though, is the resonator is on the hi-flow cat system, so when I run the OEM cats, I'm running completely straight out the back.
Surprisingly, it's not as loud as you might think, but will drone at highway speeds. As of right now, I was too lazy to put the hi-flow system back on, so it's.. um... quite aggressive sounding right now. The extra cat does help tone it down a bit.
If you just cut the resonator and leave the mufflers, you'll see an increase in cabin noise on the highway. Not too bad, but definitely louder.

Peter M

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post #4 of 9 (permalink) Old 09-16-2007, 03:50 PM
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Quote:
Originally Posted by Peter M View Post
The smog nazis busted me on the setup, and I had to put on an OEM cat system. I have both, so I can swap out for smog checks...
I was think about something like that but was worred about how hard it was to swapp out.
so how hard is it to do

[
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post #5 of 9 (permalink) Old 09-16-2007, 05:21 PM
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Quote:
Originally Posted by ipsd1 View Post
What if I just cut out the resonator and just put in some straight pipe in its place? I have a 94 4.6l V8 still have the factory exhaust. I got rid of the violin case intake and now I can hear the intake air over the exhaust note. I'm just looking to make it a little louder but not looking for the drone.
Well, I did exactly that on my 95, and I also cut out the mufflers and ran straight pipe on those as well. Sounds ok, but does have some drone in OD on the highway, but nothing I can't get used to. Also, in the high rpms, it gets a bit "ricer" sounding. Of course I've never heard it cause I'm the one driving. I have a sound clip of what it sounds like.

Jay

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post #6 of 9 (permalink) Old 09-16-2007, 10:55 PM
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I had straight pipes on mine for about a month. hated it! I just threw some quiet mufflers on it untill i figure out and get the money for a true dual setup

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post #7 of 9 (permalink) Old 09-16-2007, 11:03 PM
 
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I would recommend saving for a true dual setup. I tried just switching out my stock mufflers for flowmasters, and it droned like crazy, and sounded terrible. I finally saved up and got the 2.5 true duals with the mid mound magnaflow, and it sounds great, very little, if any drone, and it can be pretty quiet if you stay out of the throttle
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post #8 of 9 (permalink) Old 09-17-2007, 12:03 AM
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I agree- true duals with a 2in/2out reso and straight out the back, is probably the best way to go.
Swapping the cat system is a PITA! Between the O2 sensors and the manifold flanges...

Quote:
it can be pretty quiet if you stay out of the throttle
Now why would anyone do that?

Peter M

SOLD 1996 4.6l Thunderbird-(fast) PI intake, custom exhaust, Bullet-Resistant Tranny™, blah, blah, blah
2007 VW GTI-(faster) United Grey, 18" wheels, APR stage 1 chip, and... uh... that's it for now.
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post #9 of 9 (permalink) Old 09-17-2007, 02:06 PM
 
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The key is "if"
I haven't been able to much, and definitely not for long.
Also, I have the DI/DO magnaflow muffler, and no resonator.
By far, the true duals is the way to go, you definitely won't have to worry about your intake being louder than your exhaust
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