Custom magnaflow axleback done!

[austin713]

So I had been debating for a while whether or not to fork over the $700 Stillen wanted for their axle back. After doing some digging it looks like they are just rebranded magnaflow mufflers anyways so I ended up ordering a pair of the magnaflow 14829 mufflers with tips. Set me back about $130 a piece then paid an exhaust shop to weld it up in place of the stock axleback. I had them fab in flanges to mate to the stock exhaust in case I ever wanted to remove.

Sound is a bit louder and deeper than stock but the mufflers are still breaking in so I expect it still to wake up a bit. Sound clip to come in a few weeks when it's nice and broken in. For now picture below. I think it keeps the class of the m without making it too race car.

[DoN_BLaZe34]

Nice, where did you get the mufflers? That's a great price

[Ilya]

I agree the axleback isn't worth the money, but IMO the catback is...sucks it's a grand.

[beachbum718]

Found my stillen catback in the forsale section on here for 400 picked up.it was 2 months old.no rust.like new condition.i drove 3 hours to get it in Delaware... Otherwise i was going to do the same thing with magnaflow or borla.nice work

[austin713]

Nice, where did you get the mufflers? That's a great price

performancepeddlerwholesale.com I used promo code bestoffer4 and it dropped the price down to that free shipping.

[CRV_33]

Awesome job on pulling the trigger on a custom axelback. I am trying to figure out what muffler design i should go with, tempted to go with the same setup as yours because it looks clean!

[Debonair]

I had them fab in flanges to mate to the stock exhaust in case I ever wanted to remove.

This is the proper way to do this in my opinion. It came out looking great!

[IEMaestro]

Hey Austin, is there any way to take some pics of the flanges, I am looking to do the same to my M. Thanks!

[austin713]

Hey Austin, is there any way to take some pics of the flanges, I am looking to do the same to my M. Thanks!

If you look under the car, there are 2 bolts on each muffler holding it onto the exhaust. i simply had the shop weld up a flange that mated to the stock one.

[DoN_BLaZe34]

Did you ever make a sound clip of the Magnaflows?

[austin713]

Did you ever make a sound clip of the Magnaflows?

Have not. Been Busy with the Holidays. ill try and do one this week.

[Debonair]

Are you still happy with it? Wish it was louder? Quieter?

[austin713]

Are you still happy with it? Wish it was louder? Quieter?

I wish it was a touch louder. I might just be used to how my G sounded though with a full exhaust. It certainly fits the Character of the car though.

[DoN_BLaZe34]

You only did the axle backs right? Nothing with the piping?

[seldomseen]

The setup looks clean!

[austin713]

You only did the axle backs right? Nothing with the piping?

new piping from the Flange at the axle to the muffler.

[tmf2004]

any sound clips? looks very clean... link to tips?

[austin713]

any sound clips? looks very clean... link to tips?

have not had a chance to do a sound clip. I can really only tell a difference when i get on it or at idle from the outside of the car. Link to tips is further up. its actually one single unit from Magnaflow. the tips come on the mufflers.

[austin713]

I just placed an order for some 18" vibrant resonators on amazon to replace the stock ones. will do a before and after once i get them welded in!

[M37xnut]

I just installed the infiniti sport mufflers. They look great.

I wasn't looking for increased performance I just wanted a little more exhaust note. I wish they were just a tad louder but I'm happy.

[PostalsQ]

No mention anywhere of diameter size. You go with 2.5 inch? Cause I believe stock pipes are 2 inch???

[DFW2011M56S]

No mention anywhere of diameter size. You go with 2.5 inch? Cause I believe stock pipes are 2 inch???

If you remove the non monitored secondary cats the pipe is 2.5" at their inlets. I went 2.5" from there back in my car.

[ssmrico]

looking good

[austin713]

No mention anywhere of diameter size. You go with 2.5 inch? Cause I believe stock pipes are 2 inch???

Magnaflow 14829 is 2.25" inlet.

[austin713]

Update: resonators came in. Here's the difference held up against the stock one. These should make quite a difference in sound

[austin713]

Just got them installed. First impressions is its perfect for this car. Might be too quiet for a g37. Zero drone and with the windows down it sings above 4k. Video to follow

[dmclone]

Something looks wrong under there

[austin713]

Something looks wrong under there

yea i noticed that too. not sure how much a new cover costs.

[ssmrico]

so u didn't replace no piping? just mufflers and resonators?

[austin713]

so u didn't replace no piping? just mufflers and resonators?

correct. theres about 4" added because the new resonators are shorter. thats it though.

when i started this whole thing the topspeed exhaust didnt exist yet. at this price point (about $550 all in with labor and everything) i could have probably just bought that and been done with it.