Need major help with glasspacks and resonators

insanerino · Post by **insanerino** » October 4th, 2005, 1:44 pm

Hey!
I need some major help with deciding on an exhaust setup. I know for sure I'm getting the headers from psituning.ca and I'm importing the muffler that PosterT makes for the MX-3. I do not want my exhaust to be ridiculously loud. And I don't want it to sound like a ricer car. I need to get something to help tone it down a little. By the way, the car is getting a KLZE swap, and I'm sticking with 2.5" piping all the way back. As far as catalytic converters and glass packs or resonators, what are your opinions? I just want a nice even low tone that's not really loud. I'm pretty positive that I'm getting a high flow Magnaflow cat, but was else do I need? Any opinions you guys have are wide open.

-Randy

bmwm3guy · Post by **bmwm3guy** » October 4th, 2005, 1:59 pm

I have a 28" glasspack and a DynoMax SuperTurbo and I must say I LOVE the sound... nice and quiet but deep in tone.

I also have a 2.5" catback with SSautochrome headers.

lakersfan1 · Post by **lakersfan1** » October 4th, 2005, 2:09 pm

A glasspack resonator will let the deep tones pass still. A 4" muffler style resonator will muffle all frequencies about uniformily.

nope-mx3 · Post by **nope-mx3** » October 4th, 2005, 2:10 pm

if you still use the K8 with the headers, was there a noticeable difference in sound?

nope-mx3

Ricksmx3 · Post by **Ricksmx3** » October 4th, 2005, 5:33 pm

Try this http://store.summitracing.com/default.a ... wordSearch i put one of these on mine and man did it help and make it sound sooooooo much better!

Teal_93 · Post by **Teal_93** » October 4th, 2005, 5:55 pm

if you still use the K8 with the headers, was there a noticeable difference in sound?

There is if you remove the cat. The cat is what quiets most of the exhaust down. I have Pacesetter headers on my K8.

Macen · Post by **Macen** » December 9th, 2005, 7:04 pm

Will a 28" glasspack silence the sound more than a 4" Magnaflow resonator?

jschrauwen · Post by **jschrauwen** » December 9th, 2005, 7:13 pm

Macen wrote:Will a 28" glasspack silence the sound more than a 4" Magnaflow resonator?

Not sure, question is how in the heck is it going to fit. Here's a pic with the 4" diameter X 14" long plus 2.5" runners on each end. You'll notice that there's very little space left before piping has to bend around. The recessed cavity for the resonator is only so big. A 28" unit will have to be hung lower and will decrease vehicle clearance.

Macen · Post by **Macen** » December 10th, 2005, 5:58 am

Yeah, that's what I also thought. I read that some use the 28" resonator, but I guess they don't use any catalytic converter then.

lakersfan1 · Post by **lakersfan1** » December 10th, 2005, 5:14 pm

jschrauwen wrote:
Macen wrote:Will a 28" glasspack silence the sound more than a 4" Magnaflow resonator?
Not sure, question is how in the heck is it going to fit. Here's a pic with the 4" diameter X 14" long plus 2.5" runners on each end. You'll notice that there's very little space left before piping has to bend around. The recessed cavity for the resonator is only so big. A 28" unit will have to be hung lower and will decrease vehicle clearance.

I don't know who the hell installed yours, but I'd kick em in the nads. The cat is supposed to be closer to the engine that that. The further away it is, the harder it is to heat up, and the harder it is to pass emissions. Not only that, but they used clamps instead of welding it. Very cheap work.

I fit a 35" glasspack before that bend WITH a Magnaflow cat. All the bends were put in the proper place and everything hangs on stock hangers.

fry_81 · Post by **fry_81** » December 10th, 2005, 6:17 pm

My setup looks alot like johns, my cat bolted directly to the headers however but other than that its the same. sounds awsome too.

jschrauwen · Post by **jschrauwen** » December 10th, 2005, 6:20 pm

I believe the cat almost where it should be. Can't really get it any closer because of the headers and collector/flex pipe. Clamps are temporary because the shop that installed the cat and resonator couldn't do the SS welding at the time. Resonator is still located in the oem designated location.
LF1, if your running headers, collector/flex pipe, is your cat closer to the engine. You should know by now that I don't cut corners. The hand made SS system wasn't 100% perfect but pretty close. I'll have to wait until I take the car out in the spring to get the clamps removed and SS welding done .... no biggy.

lakersfan1 · Post by **lakersfan1** » December 11th, 2005, 9:02 am

No. I'm not running headers. Headers are only supposed to move the flange down 2 inches or so, though. I still would have had room in my install to move things down 2" and still come out before the bend.