Originally Posted by wparsons (Post 1846759)

That's just not true for all headers... where they make power depends on the design, just look at the nameless headers that make the bulk of their power increase in the midrange. Yes there are gains up top as well, but they're primarily designed for usable power in the midrange, not a couple extra hp at the very top of the RPM range.

Typically 4-1 headers shift power higher into the RPM range while 4-2-1 give a big bump in the middle, but that's not even always true until you compare if they're stepped or not, what diameter tubes and what length the tubes are.

Also, if you look at dynos pre/post manifold spacers, you'll see that you aren't really losing much power up top, it just seems that way because of the big bump they give around 6500 rpm. Forget about peak numbers, area under the curve is what makes the car faster.

Originally Posted by TjAlmeida (Post 1847213)

Ok your choice in headers for what you would like. ButI look at other people's dyno graphs with similar mods. Don't tell me I didn't lose that much power when there is close to a 20whp difference after 6500rpm. I know Canadian fuel is garbage but from what i have seen our fuel is not giving that same drop as other people around here with similar mods except the spacers. Guess the only way to know for sure will be a dyno graph after I remove them.

Originally Posted by newports (Post 1848303)

Man now I am really confused.

So I should get the spacers or no?

If I need to keep the cat, should I keep the stock front pipe or is it worth upgrading to aftermarket catted front pipe?

Why did someone tell me to tune the car before I install anything..?

Originally Posted by Luis_GT (Post 1848414)

Catted 3" FP, Catback and drop in filter netted me 12 WHP over stock

Originally Posted by newports (Post 1848446)

That's without a tune?

Originally Posted by wparsons (Post 1846989)

EcuTek is just the tuning software, they don't provide actual tunes. You need to work with a tuner to get an appropriate tune for your needs.

Originally Posted by newports (Post 1848303)

Man now I am really confused.

So I should get the spacers or no?

If I need to keep the cat, should I keep the stock front pipe or is it worth upgrading to aftermarket catted front pipe?

Why did someone tell me to tune the car before I install anything..?

Originally Posted by Dephective (Post 1853247)

Most tuners offer free updates for N/A as long as you stay N/A. You didn't say when you were planning on doing all of the stuff, so I assumed it wasnt going to be at the same time. You said you wanted reliability, so the first thing I personally would do is get the tune. Stock tune, meaning from the factory, is terrible, makes no power and knocks like crazy. If your tuner offers free updates, then just have it retuned after you get your header. Talk to @jamesm

Originally Posted by newports (Post 1844670)

Hey guys,

I've decided not to go FI and just end it with upgrading suspension,tires&wheels, axleback(sp elite), maybe header, front pipe, overpipe, mid pipe?

Would ending with just the header be ok?

As in extra money for down pipe, over pipe, and mid pipe not worth the gains?


I don't even want to tune it as of right now want it to be very reliable. Just worried about running E85

thanks

Originally Posted by newports (Post 1853558)

I'm gonna need ecutek for the tune right?

Is there a reason why toyota tuned it so crappy stock?