M/T RZ34 Z with A/T Axleback Exhaust. Sound clip inside

[NocturnalEmber]

I think this would be a perfect 'in between' mod for me. My 24 Performance 6MT is, just like many here think, way too quiet. I'm trying to narrow down a full exhaust setup, but I want something easy to do in the meantime that gives me a moderate sound bump.

I think I'm going to either end up going with this if I can find one cheap enough or just buying a muffler delete.

 

[VR30Infection]

I am feeling the same way. I just don’t want any rasp.

 

[Mugzilla]

I just checked and believe our member thefunk has a AT muffler laying around. Reach out to him! Keep me posted if it works out !

@Thefunk do you have an AT muffler laying around? PM me, please

 

[thesilverbullet]

just installed my a/t axle back and fitment was perfect - lol. The tips are perfectly centered in the bumper cutouts.

the m/t axle back access is tight but i did the swap without lifting the car.

For the flange nuts, my breaker bar was too big (profile height wise) and no room for a my cordless impact wrench (pistol style). you need a low profile right angle impact wrench, ratchet or standard box wrench.

i used a box wrench and lightly tapped it with a mallet to break the flange nuts loose. They are not bad to remove. I did use PB blaster on the nuts.

Then I removed the hanger brackets (space is tight with the m/t muffler and i was not going to fight the hangers and the flange studs. Hanger brackets are super easy to remove and re-install.

Sliding the muffler toward the rear bumper to clear the mid pipe flange studs Is tight. Not much room to slide the muffler flange off the mid pipe studs before the muffler hits the rear bumper.

 

[Who.Am.Eye.2716]

Dang @thesilverbullet doing it without lifting the car ?

Life is easier on jack stands. My breaker bar and pistol impact gun made the swap out easy. I too ubolted the hanger brackets. Using Soapy Warter (Dawn and Warter) in a spray bottle to get the hanger bushings off. I used a plumbers wrench to get them off.

 

[thesilverbullet]

It worked out good without lifting. I thought about lifting as normal. since the flange connection was so close to the rear of the car, I decided to try without lifting and it worked out good. My chest was the right height to hold the muffler in position for removing and re-installing. lol.

I just got back from a test run. I am loving this setup - it’s perfect and worth every penny.

 

[Meg_Z]

It worked out good without lifting. I thought about lifting as normal. since the flange connection was so close to the rear of the car, I decided to try without lifting and it worked out good. My chest was the right height to hold the muffler in position for removing and re-installing. lol.

I just got back from a test run. I am loving this setup - it’s perfect and worth every penny.

I just completed the swap. I backed the car onto low angle ramps giving me more room to work. It took me about 40 minutes to do it that included using new gaskets that I ordered from dealer. It definitely sounds better, but not terribly louder or droning noise. I wish I would have also ordered new bolts, but will do that next.

 

[CPerdomo]

I was having trouble driving my m/t car when I first got it because I could not hear it. Now it's perfect.

Same thing happened to me. I just replaced the muffler with straight pipes. It sounds good. I did placed sound deadened material in the trunk. I also had the ASE turned off.

 

[hipertec]

I wonder if there is any HP gains going to the automatic muffler with the manual mid pipes. Almost a straight thru setup.
Anyone dynod one or can feel any difference?

 

[5thZ]

I wonder if there is any HP gains going to the automatic muffler with the manual mid pipes. Almost a straight thru setup.
Anyone dynod one or can feel any difference?

I'm not aware of anything, but considering straight catback exhausts that are larger in diameter such as AWE track exhaust only gain 6hp (more in torque) i would assume not much at all

 

[kevinbonds]

I wonder if there is any HP gains going to the automatic muffler with the manual mid pipes. Almost a straight thru setup.
Anyone dynod one or can feel any difference?

I don't think there is much horsepower to gain on an exhaust in general on a stock car, or at least enough to feel it.

 

[FSUZ33]

I don't think there is much horsepower to gain on an exhaust in general on a stock car, or at least enough to feel it.

Agreed. No way any manufacturer would leave enough on the table for a sports car that a muffler change or even a full catback change would be noticeable by anything other than a dyno.
Changes in weather can make a bigger difference in HP than a lot of upgrades, and you never feel that.
Some simple mods can make a human-noticable difference. Catbacks, intakes, etc., I consider "psychosomatic gains." When you THINK it's faster because the car makes more noise or the part was expensive.

 

[5thZ]

We gotta go into downpipe territory to see the gains

 

[dyc1077]

I have noticed more power and had higher 1/4 mile trap speeds on every car I have put an exhaust on. Usually more noticeable on turbo cars than na. If you are talking Toyota Camry, Nissan Altima, Mercedes e350 type cars, I would agree that exhaust might not do much. But it has been very noticeable on my z with the intake and exhaust mods. Tires break loose much more frequently.

The factory z exhaust is tiny. As if it were built that way to satisfy governmental requirements knowing that enthusiasts will almost surely swap it out anyways. In other words, dont spend money building a nicer oem exhaust and fine tune the sound bc it is likely to get changed out anyways by people who are looking for more power/specific exhaust note/etc.

 

[JakeF777]

Wanted to chime in and share my experience for anyone considering the Remark axleback setup or debating resonated vs. non-resonated.

I started last year by removing the muffler and installing the Remark axleback. It sounded great at first with an aggressive and deep tone, but the interior noise got old pretty quickly. Between the drone and certain frequencies rattling the cabin, it wasn’t enjoyable for daily driving or longer trips.

A few months later I added the resonated mid-pipe from Remark, and it made a huge difference. The tone mellowed just enough and most of the drone was gone. I finished the setup last week by adding the Remark Y-pipe, and I’m honestly thrilled with how it all came together. Outside the car it has a strong and clean sound. Inside, it’s smooth with no drone, no rattles, and no buzzing like I had when the manual exhaust was straight piped.

The quality of the system is excellent. I was really impressed with the fit and finish, and the exhaust tips sit perfectly against the bumper. It looks just as good as it sounds.

One thing I really like about the Remark system is that you can build it gradually. Since they sell each section separately, it’s easy to test out each part and upgrade at your own pace. Just wanted to drop my feedback in case anyone else starts with just the axle-back and ends up frustrated with cabin noise. The full system completely changes the driving experience.

Hey, sent you a PM in reference to your Remark exhaust.