Can someone enlighten me about exhausts systems?

Look if you are looking for performance on your truck than you are going to have to replace the headers all the way to the tips. just the muffler and and exhaust wont do enough. but just like what i did in my truck i got a cold air intake which boosted mpgs, horsepower, torque, and response. until you get that you are just blowing air. literally

 

Ahh, now I understand what you are talking about. Some high-performance cars use an exhaust system where above certain RPMs it opens a valve to another set of exhaust pipes, thereby increasing exhaust pipe size and increasing flow. Allows smaller "normal" pipes to help low-mid RPMs, and opens the valve to allow better high RPM breathing.

I don't know of any kit or aftermarket parts to enable this, but also haven't looked. I would suspect the gain would not be worth the cost to retrofit that on a Tacoma.

 

High quality advice!

 

just get whichever one you think sounds the best. Any performance difference will be absolutely miniscule. i went with the aero 2525 after spending a week listening to sound clips, and I am more than happy. Sounds beautiful. take power/mpg/butt dyno out of the equation. Do not listen to anyone telling you they gained *** horsepower without them posting dyno charts because they are pulling the number out of their ass.

this topic has been beaten to hell and back. search the forums and all your questions have been answered a million time. but to make your life easy ill answer it for you again, get the exhaust that you think sounds the best. and also, the dual exhaust out the back looks retarded.

 

Thanks, man! What about Banks exhaust? Whipper has those, and he does seem to know what he's doing when it comes to truck parts.

Every Dyno I've seen on headers (On Tacomas at least) has seemed to lost HP... And as far as the CAI, I'm pretty sure the stock intake is just as good, or that's what everyone else says.

And isn't that one a bit dangerous? Or are there no downsides? (I'm talking about trash getting in through the grill)

Ah, I see, thanks man! Finally someone gets what I was talking about. Lol

Yeah, sorry, I know as long as these forums have been here it's BOUND to have been answered, but I did search :/ maybe just not in the right place. And about dual rear exits... I hate those. Every pair I've seen just doesn't fit and seems to dangle there. Literally. I'd like Dual side exits though. Or is that what you meant looked retarded?

 

I can vouch for the MPG gain as well. I got the Aero Turbine AT2525 installed on mine too, shit is a nice muffler.

 

Really? Well what about what A7XTaco said, about losing power and MPG?

 

Input on exhausts will be the same as for air intakes. You'll get opinion on both sides. Only way to stay sane is to listen to the opinion, look for real data backing the results and consider the sources of the opinion. Do some general research on the hows and whys of intakes and exhausts and apply it to what you'd expect to happen. There's always some truth in everything you find. Good luck....

 

got data to prove this?

 

I was able to get 450 miles on a tank with an average of 24.7 mpg (look in my gallery and you'll see the pic of the scangauge reading. It underestimated fuel usage for the tank so it reads 24.5 though. I was never able to get this far before, but i was able to get to 400 when i tried.

I made 2 changes between making it to 400 to being able to make it to 450. I lifted from 1.75 in front and 1.5 in rear up to 2.75" front and 2.5" rear and i added the aero turbine run to duals.

I am going to be completely honest i personally don't think this is all because of the muffler. That significant change in fuel mileage being solely from a muffler change is absurd. I have been trying to figure out what else the change could have been, and another thing i have found to help with further testing is I believe i get better fuel mileage when i drive with all the windows down including the rear. But still there has to be something else that added too it that i have overlooked. But I can honestly say i do not think i lost anything as far as fuel mileage goes when i swithed to this from a dynomax super turbo.


I know you might not take me seriously because of my age but i did take automotive at a vocational high school and took bronze at a state level competition for vocational schools. I am by no means saying i know everything but I'm not just some dumb kid. ( I feel like that's how I'm treated on automotive matters )

I'm not going to argue the matter any further, I am not saying mine is the way to go or its the best. I am simply sharing my experience with the exhaust.

 

I dunno, It seems with the Aero Turbine I had gains in both fields. Who know's.

Do butt dynos count?

 

Hey I just wondering if you picked a exhaust system

 

How the hell are you getting 24MPG? I get 18... Do you drive on the highway or city? And what are the specs on your truck? If everyone's being honesty about their 22+ MPG around here I must have a stinkin' hole in my gas tank

Nah man I haven't even gotten to look much further... Everytime I look I find out new stuff that changes what I want. Plus I've been working a lot more lately.

2.5 eh? So does that mean if I get a dual exhaust I might as well kiss HP goodbye too? Or what if it's a dual 2.5 but it's only dual behind the muffler? Would that make it better? Aaah I'm so uneducated in this stuff

As for the TCAI... So do you think a URD would show any gains, or is it just better to keep stock?

Hmm... Thanks

 

Try not to use your brakes as much as possible, learn where you can let off the gas to coast to the next turn without braking. Braking turns your forward energy into heat, which is energy being lost from the system.

like when I'm driving home i know where to let off the gas so that i don't have to use my brakes to turn onto the side street i live on.

i get worse mpg's if i drive highway, unless i keep it around 60 mph (ill only do this if the highway isn't busy) the faster i go above that, the worse my fuel mileage.

I get the best mileage when i drive 45 on back roads that don't have many stop signs.

 

Yeah, that's what I do. I read all up on hypermiling before I started driving. But I drove a standard before my V6 and my question now is, if you throw an automatic in neutral while coasting (Like you do in a standard) does it save gas? Or is that ONLY with standards?

 

Alright, gotta call you out on this one. How would coasting in N, with the engine at idle settings, give better milage then coasting in gear with the injectors off?