Muffler replacement with stock 4Runner 4.7 unit?

[kcobourn]

The OE muffler has a rattle & needs to be swapped out.

Is it possible to use a muffler from a 4.7L V8 equipped 4Runner?

 

[landylover21]

No, different inlets/outlets and size.

 

[DirtDawg]

Theoretically, you could. But why? I would just go with a common aftermarket bolt in replacement that has been covered on here or have a shop weld in an aftermarket unit. I chose the latter.

 

[kcobourn]

The 4Runner muffler is free & it would be cheaper than having to buy a new OEM unit. Personally would prefer stock vs. aftermarket sound on this truck.

It sounds like it's not feasible though so looks like I'll just swap with a new OEM unit.

 

[4Beast]

4Runners have that stupid resonator right before the tailpipe too, not sure if that would change something, but makes me think there are other differences that would make it a no-go.

 

[lhommec13]

4Runners have that stupid resonator right before the tailpipe too, not sure if that would change something, but makes me think there are other differences that would make it a no-go.

Although I removed mine, our 100's have a resonator before the tailpipe too.

 

[abuck99]

I like stock quiet too. Not much over $100 for a 24” stainless magnaflow. Install maybe $50 to have it welded in.

Darn near stock dB level, just a touch more noticeable on start up- but it is quiet under all operating conditions and more free flowing than stock so you’ll have a touch better low end throttle response.

 

[Spike555]

I like stock quiet too. Not much over $100 for a 24” stainless magnaflow. Install maybe $50 to have it welded in.

Darn near stock dB level, just a touch more noticeable on start up- but it is quiet under all operating conditions and more free flowing than stock so you’ll have a touch better low end throttle response.

You left the resonator on yes?

 

[kcobourn]

That’s good information!

This shop is telling me $175 to swap mufflers ... sounds like I’m being taken advantage of.

 

[Spike555]

Are you buying the muffler from the shop? If so that sounds reasonable to me.

 

[abuck99]

You left the resonator on yes?

Yeah resonator on. I originally removed it but went back and had it welded back on. Didnt care for the drone.

That’s good information!

This shop is telling me $175 to swap mufflers ... sounds like I’m being taken advantage of.

$175 otd installed is in the ball park. Its reasonable.

 

[Spike555]

Cool @abuck99, I do not need a muffler yet, but I do NOT want any drone, I don't want loud, nice and quiet with a little throat when I put my foot down.
So I'm keeping your set up in the back of my mind.

 

[kcobourn]

Great info ya’ll. Will check YouTube for some examples ... likely after confirming I’m going the magnaflow route given the cost variance.

 

[kcobourn]

MagnaFlow 12286 @abuck99 is that the part # you used? Apparently there's an even quieter version & this is an older # hence the question...

 

[abuck99]

MF 12286 is a unversal fit- 24" body 30"overall 2.5" in and out centered. That is what I have.

some good discussion here: Got Direct Fit Muffler Replacement Experience