01LE Posted August 27, 2008 Share Posted August 27, 2008 Anyone tried eliminating the rear muffler and running a pipe off the mid muffler and out the back? How does it sound? Link to comment Share on other sites More sharing options...
Trancebear Posted August 27, 2008 Share Posted August 27, 2008 Anyone tried eliminating the rear muffler and running a pipe off the mid muffler and out the back? How does it sound? The rear muffler looking thing is a resonator, works like a silencer. I am running a Flowmaster muffler where the stock one is and 2.5 inch pipe the rest of the way out the back and it sounds good. I always get rid of the resonator on every vehicle i have, you just have to deal with the resonance that you may get. I do not experiance it at all. Link to comment Share on other sites More sharing options...
02silverpathy Posted August 27, 2008 Share Posted August 27, 2008 I did! I had my whole exhaust off in favor of a large 2.25 dual into a open magnaflow dual and out in duals also...I lost pounds of torq...so I had a buddy weld back on the factory minus the resonator...took a few thousand miles but the exhaust actually burbles a little!! volume? Hardly any at all....there may have been 10 perforations in that resonator--just removes this little burble and some raspiness. Link to comment Share on other sites More sharing options...
navygz19 Posted August 27, 2008 Share Posted August 27, 2008 Anyone tried eliminating the rear muffler and running a pipe off the mid muffler and out the back? How does it sound? Yeah I had that for quite awhile when the rear section fell off because it was so rusted on a wheeling trip...I had nothing from right in front of the rear axle back. To be honest, it didn't at all sound different. If it were going to sound any different, the resonator would have needed to come off as well...see pic...this is what came off. Link to comment Share on other sites More sharing options...
Pezzy Posted August 27, 2008 Share Posted August 27, 2008 Ah yes, if you're talking about the one right near the end, I had mine removed a couple years ago (so I didn't rip it off on a rock) and I didn't notice any difference at all. Link to comment Share on other sites More sharing options...
silverlion Posted August 27, 2008 Share Posted August 27, 2008 I have mine dual in dual out. I had issues with a clogged exhaust. Since it ran poorly when I got it and dualed it out right away, I never noticed a loss in power. Sounds like I should go back to single due to torque loss. Never woulda thunk it. Link to comment Share on other sites More sharing options...
Zibi Posted August 27, 2008 Share Posted August 27, 2008 My tail pipe rusted out at the resonator and I haven't gotten around to fixing it yet ($$) but I do intend on just cutting out the whole resonator and running a pipe back. I can definitely hear the difference but it's not very much louder. I rather like it, I joke about it being my ricer exhaust since it currently looks like I have a 4" tail pipe. Link to comment Share on other sites More sharing options...
laxman0324 Posted August 28, 2008 Share Posted August 28, 2008 I was thinking about having the front resonator and second muffler (resonator as you guys make it sound) removed...hoping it wont cost me a ton. Link to comment Share on other sites More sharing options...
Trancebear Posted August 28, 2008 Share Posted August 28, 2008 (edited) I was thinking about having the front resonator and second muffler (resonator as you guys make it sound) removed...hoping it wont cost me a ton. Mine was removed when the whole system was replaced, local shops should do it for under a c-note. Diagram below to explains the system.. Edited August 28, 2008 by Trancebear Link to comment Share on other sites More sharing options...
laxman0324 Posted August 28, 2008 Share Posted August 28, 2008 3.3's have some additional part (i assume resonator)... see attached diagram Link to comment Share on other sites More sharing options...
Zibi Posted August 28, 2008 Share Posted August 28, 2008 (edited) Mm that just looked like a piece of flexpipe to me last I was under my truck....why have a resonator coming off of only one side? If it were another muffler, resonator or some type of pollution control I imagine that there would be one coming off of each manifold as it's silly to only do it off of one. Eventually when I have the tools and can justify the cost I'd like to do a cat-back full dual exhaust but I haven't actually looked into how best to do that yet. Edited August 28, 2008 by Zibi Link to comment Share on other sites More sharing options...
silverlion Posted August 28, 2008 Share Posted August 28, 2008 3.3's have some additional part (i assume resonator)... see attached diagram This is a "flex pipe". It keeps things from cracking due to vibration and stress. Link to comment Share on other sites More sharing options...
Trancebear Posted August 28, 2008 Share Posted August 28, 2008 Pics of the 3.5's setup close up Muffler assembly from cat to resonator Resonator to tail pipe Link to comment Share on other sites More sharing options...
kennyJR50 Posted August 29, 2008 Share Posted August 29, 2008 (edited) Here is a pic of mine, only slight increase in sound if any at all. Where's my picture? Edited August 29, 2008 by kennyJR50 Link to comment Share on other sites More sharing options...
01LE Posted August 29, 2008 Author Share Posted August 29, 2008 (edited) Thanks for all the replies guys. I have a appointment setup for next wednesday at my buddies shop. He's replacing the muffler with a Magnaflow and running 2.5" pipe without a resonator and I'm gonna have him do some sort of tip. I'll take some pics and post em' up when I'm done. Edited August 29, 2008 by 01LE Link to comment Share on other sites More sharing options...
sprinthead Posted September 18, 2008 Share Posted September 18, 2008 Why in the world would you go to 2.25 or 2.5" mufflers and pipe on a Pathy ????? IF you are wondering where the low speed torque went, I can tell you it went by the wayside when you put the WAY bigger diameter exhaust pipe and muffler on it ! For an engine to produce good low speed torque, there are a few things it needs, and when talking exhaust, it sure isn't the old *bigger is better* thing ! If you scroll back up the page to the picture of the exhaust system that is from a Walker catalog, you will notice that the muffler clamp used on the pipe is ONLY 1.75" !! That would therefore mean that since airflow is only as good as its smallest restriction, and the exhaust pipes are NOT mandrel bent, I would be surprised if the best you got on the ID was 1.5" in a bend !! This is what helps to build low speed torque. Why, I do not know because I am not an engineer nor air flow dynamics specialist, but it does make a difference as I've witnessed on a dyno ! I would really like to ditch the cast iron manifolds with the cats in my 97 SE and put on a set of headers, but there is that distinct chance that it will adversely affect the low speed torque of the engine and that is something I don't want to do ! Big pipes flow big air volumes which is ideally suited to high RPM engines, and/or engines of way more cubes than 3.3 litres !! I can go further into this, but I liken it to the guy that comes into the parts store where I work and wants an 850cfm double pumper Holley for his STOCK 305 chevy in his '80 malibu ! heh ! Link to comment Share on other sites More sharing options...
Thunderbolt Posted September 18, 2008 Share Posted September 18, 2008 Unless the vehicle is turbo or supercharge, I wouldn't increase the exhaust size, you will lose back pressure which mean the loss of power and bottom end torque. Link to comment Share on other sites More sharing options...
Trancebear Posted September 18, 2008 Share Posted September 18, 2008 My setup with the 2.5 inch pipe from the muffler back has not effected my low-end torque. It is when these guys use 3-inch pipe is when you loose it. I did the research before I installed it and all is good. 2.5 is the max I would ever go. Link to comment Share on other sites More sharing options...
laxman0324 Posted September 18, 2008 Share Posted September 18, 2008 My setup with the 2.5 inch pipe from the muffler back has not effected my low-end torque. It is when these guys use 3-inch pipe is when you loose it. I did the research before I installed it and all is good. 2.5 is the max I would ever go. Your exhaust is still the stock size before the muffler, which I am sure helps keep the low end torque... Link to comment Share on other sites More sharing options...
01LE Posted September 18, 2008 Author Share Posted September 18, 2008 I had this done few weeks ago. He used a Magnaflow muffler with a dual 2" inlet and a single 2.5" outlet. He got rid of the resonator and ran 2.5" pipe over the axle and out the side like stock...but with a nice double walled, angle cut, stainless exhaust tip. So far I like it. It has a nice rumble to it and there is no noticeable drop in torque. I could see losing torque if I ran 2.5" all the way from the exhaust manifolds back. Link to comment Share on other sites More sharing options...
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