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#1 |
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Donating Member
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tips on smoothing out the exhaust tone
I think most people here are familiar with the red pgt on streetfire.. if not, click me
long time I ago, I decided that was the sound for me. So I changed my Sebring to a magnaflow streetseries 14830, same as the red probe. Added a JJ res testpipe and the stock resonator was already deleted by the previous owner. still using the stock logs for now, but I'm saving for some ebay headers soon. anyway, start up and idle is pretty much exactly the same on my car now, but revs and most of all flyby's sound pretty different! For reference, here's mine http://www.youtube.com/watch?v=Yz5E6Jq5fzo I also have a soundfile from the red car launching and it's so much smoother then mine. volume is about the same, although I could do with a little less.. So now I ask you, how to get the smooth, higher pitched KL sound (with the same muffler)? and not the burbly sound as heard in my video.. Would adding a magnaflow resonator, in place of where the stock resonator used to be, work? if so, how large? any input is welcome!
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Last edited by Dutchy : June 2nd, 2008 at 07:59 AM. |
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#2 |
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POC Mod
Join Date: Oct 2002
Location: Probably running around Deals Gap. Again...
Age: 25
Posts: 6,121
iTrader: (8)
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What size piping are you running? That makes a huge difference.
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Jim K. :89 LX: Gone but not forgotten.:96 PGT: Its not purple dammit! Its BOYSENBERRY! 267k and still climbing. When I go for a drive, I leave life behind. Friends, work, everything. Its just me, the car, and a twisty road. The exhilaration of being on the edge of catastrophe is something that I will never be able to give up. |
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#3 |
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Donating Member
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headers make a noticeable difference in sound (and pull harder), id suggest looking into those
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-Roman 93 teal mist PGT.....RIP march 21, 2008 95 white PGT....race car/daily beater/snow drifter 02 yamaha R6....new toy |
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#4 |
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PT Regular
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Doesn't sound too too bad. But I'm sure it sounds louder in person like you mentioned....which due to your lack of cat & resonator. I also HAD a Magnaflow muffler setup...now I've got a Greddy from the axle-back.
Simple solution to smoothing it out is to install a larger than stock resonator...it will eliminate the harshness...just have your mechanic cut & weld it in place. That's what I did to eliminate the rasp I had from the high-flow cat..smoothed the tone right out and had plenty of compliments. I'll see if I can post a clip of what it sounded like...only difference being I have a high flow cat vs. your JJ test pipe. Here's a clip...with carsound high-flow cat, larger resonator ( can't remember size, but bigger than stock ) Shitty quality picture but sound is OK...funny camera man is my GF's kid brother. I'll post a clip of the current Greddy from the axle back with the same setup just as soon as I tape a clip. http://www.youtube.com/watch?v=hI5eW773TiM
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'95 RoyalBlue PGT MTX 247k kilometres OR 153,500 miles '07 RX-8 18 inch wheels / 2006 Mazda6 calipers/rotors, 11.8" Front / 11" Rear 14.961@89.8mph CAI, MX3 flywheel, stock cat,Magnaflow muffler Last edited by ELPGT95 : June 2nd, 2008 at 02:47 PM. Reason: Automerged Doublepost |
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#5 |
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Senior Member
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headers will destroy the sound of your exhaust. if your looking for a smoother sound you will be taking a step in the wrong direction. rasp will be your new best friend. anyways, yes i would look into a magnaflow resonator, it should help.
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Beauty- 1997 PGT Daily Driven The Beast- sleeping in the junkyard... The New Beast- RWD PGTS under construction... |
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#6 |
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POC Mod
Join Date: Oct 2002
Location: Probably running around Deals Gap. Again...
Age: 25
Posts: 6,121
iTrader: (8)
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Im with him. /\ I had 2.5 inch piping with a testpipe, no resonators and stock logs and downpipe to a ebay OBX muffler. There was NO rasp and it sounded incredible. Then I put SSAutochome headers on and the sound went to hell. It rasped in all RPM ranges, even with different mufflers. I eventually installed a JeffJeske resonated testpipe and a 22 inch long glasspack to another OBX muffler to finally kill the rasp the headers created. It was a very deep tone though in the end but I don't think that is what you are looking for.
My friend has the same headers as me as well as the same size piping but his setup has a JeffJeske resonated testpipe to a Magnaflow inline muffler and when it gets to the axle, the piping is Y'd and another magnaflow straight through muffler on each side of the car for the dual exhaust. It has the high pitched sound with no rasp but it required 3 mufflers and a resonator.
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Jim K. :89 LX: Gone but not forgotten.:96 PGT: Its not purple dammit! Its BOYSENBERRY! 267k and still climbing. When I go for a drive, I leave life behind. Friends, work, everything. Its just me, the car, and a twisty road. The exhilaration of being on the edge of catastrophe is something that I will never be able to give up. |
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#7 |
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PT Know it All
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I'm with Jim on this one. The multiple muffler/resonator set-up sounds INCREDIBLE on Andy's car. Although I want to think that the ZE's extra compression has a little to do with it also.
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The Garage: 97 MX6 LS(sold), 89 PGT, 92 Talon TSi AWD, 93 Talon TSi AWD, 92 GSX. I break parts. "If everything seems under control, you're not going fast enough" - |
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#8 |
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Donating Member
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ZE's tend to sound a little smoother I think..
that magnaflow setup from ELPGT sounds great! It's the deep loud tone I like from Magnaflow, but with more of the smoothness from a borla. That's what I'm looking for! I will be putting headers on in the near future, because my stock setup is getting pretty rusted and beat. So a large, like 22 or 24" magnaflow resonator would smooth it out a lot, I take? oh, still running the stock 2.25 piping, to answer your question.
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Last edited by Dutchy : June 2nd, 2008 at 06:23 PM. |
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#10 |
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Jr. Member
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Well i have headers, a gutted cat and a borla 2.5 inch catback exhaust and it sounds similar to the red pgt on streetfire. Higher pitch with no rasp... But then again as stated earlier my Klze may have somthing to do with it...
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93 PGT KLZE |
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#11 |
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Donating Member
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borla is always a lot smoother too..
but holy crap, I didn't know stock piping was that small! I need to get me some 2.25 then! will that make a noticable difference in power?
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Last edited by Dutchy : June 2nd, 2008 at 07:41 PM. |
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#12 |
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PT Regular
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Dutchy: I think my resonator is like a 22" or a 24"....All I know is that its a little bit longer and wider than stock......LET'S KEEP IT CLEAN FOLKS
But yeah the resonator will help a lot....but the sound WILL totally change with headers. Either way you'll need a decent size resonator..or muffler...or two.
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'95 RoyalBlue PGT MTX 247k kilometres OR 153,500 miles '07 RX-8 18 inch wheels / 2006 Mazda6 calipers/rotors, 11.8" Front / 11" Rear 14.961@89.8mph CAI, MX3 flywheel, stock cat,Magnaflow muffler |
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#13 |
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Donating Member
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I have a Borla catback with 2.5 piping, which includes their resonator, and it sounded great. But I added a test pipe, I really noticed a higher timbre/pitch. It's completely smooth with no rasp.
If you're set on keeping the muffler you have, it sounds like everybody's suggesting a test pipe and/or resonator if you don't already have one.
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redeemed |
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#14 |
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Donating Member
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I'm set on keeping the muffler, i like the tone and I know what it's capable off..
So yeah, a resonator is in order.. along with some 2.25 piping |
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#15 |
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Donating Member
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if you could get a Jeff Jeske pipe, those things are amazing. it would be kinda expensive to ship it to EU, being its 80 dollars shipped in america
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-Roman 93 teal mist PGT.....RIP march 21, 2008 95 white PGT....race car/daily beater/snow drifter 02 yamaha R6....new toy |
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#16 |
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Donating Member
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already got a resonated JJ TP under there mate
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#18 |
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Donating Member
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2.25" piping and a resonator?
I found a 22" long 4" wide magnaflow muffler on the site that I got my muffler from, I think this is what they mean by a resonator? It's just called a muffler though.. lookes like some kind of shiny glasspack |
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#19 | |
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PT Regular
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Quote:
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93 Probe GT - HS Intake, JJ Tp, 2.25" Mandrel Bent Magnaflow Exhaust, Eibach and Blues, Southbend Rally Series Clutch, MX3 FW, RR Poly Inserts, Hella H4 Lights, Corksport RSTB, Pilot 1055's. |
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#21 |
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Donating Member
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you'll just get noise, not a smooth KL sound
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#23 |
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Donating Member
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ZE IM going on this week!
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#24 |
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Senior Member
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To obtain a smooth non-raspy sound in a KL regardless of headers, car or the muffler in the back you should run a resonator/muffler of some type in the same location as the stock exhaust's resonator. Every system I've ever built or heard that didn't have on was raspy. The one I recommend is a Magnaflow unit, IIRC the one I have is 18x4" round body 22 or 24" overall length.
Adding headers will provide you a slightly higher pitched, more defined sound that you desire, as the stock logs seem to have a 'muddy' sound compared to headers. My setup is Ebay headers, stock cat or TP, aforementioned magnaflow muffler, side exit exhaust with 2.5" mandrel bends: http://i61.photobucket.com/albums/h6...t/DSC08123.jpg Outside vids: http://videos.streetfire.net/video/M...gas_156117.htm Inside: http://videos.streetfire.net/video/M...-on_156052.htm And some with a Test Pipe 0:58 to 1:47 http://videos.streetfire.net/video/9...ark_131507.htm Ryan
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Ryan '94 Mazda MX6 V-6 STX Prep: MFactory LSD [] TEIN [] Enkei 17x9 RPF1 [] Toyo R1R [] Hawk HP+ [] Schroth [] Corbeau [] AWR [] HotShot [] Headers [] Magnaflow [] Side Exit [] |
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#25 |
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Donating Member
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Thanks for the help Ryan, I know what I'll have to do now! Awesome sound with the tp haha
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