Questions.

[Lognutz808]

I know these are dumb questions but 1. Does the air intake and exhaust system increase MPG? or does it decrease it? 2. What is the best white bright halogen light? Sorry for the noob questions lol. have a good day.

[littleboi64]

increases. but will decrease because you have more fun driving. no such thing as best white bright halogen light. well define that. you looking for output or whiteness?

[LeanBurn]

Power and fuel economy aren't the same. In reality no after-market intake or exhaust system can increase fuel economy because optimum fuel economy is achieved by opening the throttle plate as small as possible...which is controlled by your right foot. Since even the stock system will flow more than a partially closed throttle plate...the throttle plate is the determining factor for when considering fuel/air part of the picture. Aerodynamics is the next biggest factor as wind resistance is the next nemesis.

Now a modified from stock intake can increase power which is felt when the throttle plate is fully open...at that point the plate is flowing as much as it can and whatever piping in/out of the engine is the possible sources of restriction. At this point fuel economy is not a variable and therefore not optimized, but the smile and fun factor is..


littleboi64 is correct, white doesn't mean bright. When dealing with light, bulbs with clear glass (no tint) will always offer the brightest output over an equivalent tinted glass bulb.

[toyotas4all]

I have experienced a slight increase with my mpg since upgrading to a takeda SRI, with everything else stock, even my steel rims.

I used to average around 26-28, now I can actually hit 30.
On long drives, 150 mile+, I used to average around 37 mpg, now I hit 38-40.

[LeanBurn]

You would have to document you before/after for a prolonged period of time to substantiate the increase. So many things affect fuel economy it is difficult to pinpoint. I have had fluctuations like you are mentioning while driving the same exact road over a period of a month, changing zero variables other than environmental.

From all the fuel economy forums I belong to/have visited (some of which do some pretty crazy detailed testing), my previous statement has been the consensus.

[Lognutz808]

Ok so for the intake and exhaust, it doesnt really change the mpg then because it still depends on how you drive rather than the parts installed. right?

The halogen lights, Ok yea i realized the output is gonna be the same so what I meant whitest light.

sorry guys for the slightly stoopid questions lol

[Rojas0608]

A lot of users that didn't get HID's went with

Phillips 9012 Low Beam Bulb

Phillips 9012 Low Beam Bulb

, myself included.

I noticed it illuminates better than stock, not sure it's much "whiter" when looking at it directly.

[LeanBurn]

Right.

Actually output isn't going to be the same. The whiter you go with halogen, the dimmer it will be over stock. So if you just want 'whiter' light....do a search there are a few on here that installed that cosmetic bulb type.

[Zembonez]

The only thing most intakes and cat back exhausts do is make more noise. Many people equate this noise to more power... but it's really not the case.

There are still people who swear they get better mileage and more power out of them.

[DoctorX]

my .02 cents worth... my mileage went both worse and better. City driving in the toilet, but highway with cruze, i get abou 38-40 at about 77MPH.

As for performance, i beg to differ... My car woke way up after putting the intake and borla on. I have to be careful going into 2nd or the tires break loose. But i also noticed i have to run higher octane. Not sure why that is the case. 91 octane is just barely enough. when i put 93 in, hold on to something.

[toyotas4all]

I didn't feel any difference in power with my intake. I rationalized it as, "To really harvest its full potential I need to get an exhaust as well".

MPG wise I'm pretty sure increased.

[Lognutz808]

hmm I still am on the fence on getting projector head lights from spyder

http://www.carid.com/2010-toyota-cor...ts-318155.html

its either that or i am just gonna stay stock what's your guys opinions?

[SuperchargedMR2]

Originally Posted by Rojas0608

A lot of users that didn't get HID's went with Phillips 9012 Low Beam Bulb, myself included.

I noticed it illuminates better than stock, not sure it's much "whiter" when looking at it directly.

I love the HIR bulbs. The point of the bulb is too allow you to see better & the HIR bulb does that much better than any other bulb in the stock housing.

Originally Posted by DoctorX

my .02 cents worth... my mileage went both worse and better. City driving in the toilet, but highway with cruze, i get abou 38-40 at about 77MPH.

As for performance, i beg to differ... My car woke way up after putting the intake and borla on. I have to be careful going into 2nd or the tires break loose. But i also noticed i have to run higher octane. Not sure why that is the case. 91 octane is just barely enough. when i put 93 in, hold on to something.

I don't know how you get 38-40 mpg at 77 mph. Just the wind resistance at that speed doesn't make that realistic over a tank of gas unless you have a great tail wind or are going downhill. And sense you live in Iowa where there are no mountains........

When I installed my Borla & Takeda the car felt more responsive & it felt like there was a liitle more power as in 5-7 hp. Not a huge amount but it was a move on the right direction. My MPG have remained the same when I drive the same, when I want to drive & have more fun than my MPG is lower than normal.

You shouldn't need premium fuel. Adding the intake & exhaust doesn't change the engines octane needs. I still run reguler grade. Premium fuel actually has less energy in it & is used for performance engines to control detonation from occurring too early. After I turbo my S than I will need to possibly use premium depending on the tune & boost levels.