Custom MagnaFlow advice..??

Im going to a custom muffler shop tomorrow morning. The manager said he is recommending a MagnaFlow muffler and custom install etc. He said it will be about $500.00. My goal is to get a little more throaty sound and gain some performance. Is this realistic with what he is suggesting. I really appreciate any advice. BTW, I had a Borla several years ago and it looked like good quality but it was a little to loud for my liking and I did not notice any performance gains or fuel economy increase. I did install a TRD drop in filter a few days ago for my 16 Tacoma. Again, any opinions or suggestions on what to ask or to do or not do would be appreciated. My "plan" was to do a side exit exhaust similar to the stock one. Thanks!

 

Yes, maybe I misunderstood? I know he said he would be increasing the tube size and bending everything to exact fit. Other then the price which I will clarify in the morning, can a MagnaFlow give a slight increase in throat sound and also "some" performance gains over stock or is it just pure sound these day and zero increase in performance. Thanks, I'm not a gear head and do not know the true answer...

 

You may get 1 horse power from a new exhaust system on this truck?

 

I don't think you'll gain much from just a muffler.. With a new pipe and a cold air intake you would need to do a tune to get real performance gains...

 

If I am not mistaken the couple of members that did exhaust mentioned a loss of mpg which make sense. Just as an fyi

 

Geez. I don't want that! Maybe I should wait until more research is done and more options are available. Thanks! Scott.

Wonder why loss in mpg? Atkinson cycle engine??

 

Thanks. That makes sense. I guess what I'm really wonder is "if" a dyno test would show gains? The TRD Website says that there drop in filter is dyno tested for HP and torque gains. Wonder if a cat-back system would also show gains? Or with the high tech engine, would there be losses or zero performance gains and just better sound?

 

they may get getting the low end torque they need with less fuel due to the back pressure

 

Lose of mpg is from lose of back pressure.

If your looking for sound only yea it will help. But it's still a v6 your not going to get the deal deep sound like an 8.

 

We already have a good exhaust, you'd be better off just swapping out the muffler itself. I doubt you'll
gain anything other than a different sound....but for most that's worth the change-out.

 

Loss of back pressure as GSXXR mentioned is the reason. I am going to bet that do a system it will need a tuner as well to keep things in check because of how specifically tuned these truck are now.

 

I'm pretty sure these engines are tuned back for longevity.

There's so much room in the engine compartment you could easily throw in a big supercharger or even twin turbos... Question is how durable are these engines.

 

Tuning doesn't mean putting in a forced induction system.

 

Thanks. I've decided to wait. Maybe it's too early. Would want to do it when specific data and dyno specs are released to improve HP etc. Maybr when TRD does one, I'll check into it...

 

Thanks. I've decided to wait. Maybe it's too early. Would want to do it when specific data and dyno specs are released to improve HP etc. Maybr when TRD does one, I'll check into it...

 

The difference when trd does something vs aftermarket is huge. The have access to all the compute data where other have to figure it out on they fly.

An air filter is different because the engine will only take oin as much as it can. Plus you have the maf sensor to monitor it and adjust the fuel. The exhaust on the other hand does not have a way to regulate back pressure. So you have to manually compensate for it.

Lots of high performance engines now have exhaust vales on them to adjust back pressure for different driving conditions. But that's only on bikes and high end cars as of now.

 

No its not!!! It for back pressure to make low range torque.

Where did you come up with that?

 

The term back pressure is being used in exhausted gas regulations. That will change air fuel ratio.

 

In the 90' they had no idea about volume vs volatilit. Everything was big and wide open intake ports exhausted port and exhaust. Now a days technology has made many advances. Bigger is not always better.

 

Lmmfao...never knew the valves in my vette mufflers reduced back pressure..things you "learn" on TW