What you would get first and why? Headers OR ECU???

 

ECU. Stealth mod. Stealership won't even know about it. And when I race other Maxima's (Pioneer and soreceur) they will be confused as to why I pull out ahead of them so strong.

Header = noise and problems with warranty repair.

 

it's not a header, it's a y-pipe, and he said it's not going to significantly increase the noise on a stock exhaust...
that said, I'm getting the ECU for the reasons Lumbee said, but the most important is "stealth" from the dealer and the wife

 

WAF (Wife Acceptance Factor) is definitely something else to consider.

Stillen headers are out for 2k2/2k3.

 

I'd say go for both.

 

crap... for some reason I thought he meant the Cattman y-pipe...my bad.

the reason i got an injen was so she wouldn't know I swapped the intake
she never revs high enough to make it make noise. She knows I did *something* but isn't asking, and I'm not telling

 

I say wait on both.
Lets see if the Cattman headers will fit the 3.5, even if they don't it shouldn't take to long for them to do a little tweaking and get it to work. Then we can look at real world results for both and make an informed decision.

With the ECU you would want the flash to be tuned to the mods you have so wouldn't you want the headers 1st.

That and I'm sure the WAF isn't a factor in the Greek mans house.

 

has anyone bought the ECU chip yet???
Is it worth 600 dolla's

 

$600? I thought $495.

http://www.technosquareinc.com/maxima.htm#pricing

 

I'm all over that ECU upgrade...

 

Don't count on it! Cattman JUST released the y-pipe, so it doesn't make business sense to release the headers UNTIL sales peter off.

Honestly, I'd go with the TS ECU($495) and the Cattman Y-pipe($325) AT THE SAME TIME for $820 vs. the Stillen headers which are going to be a B!TCH to install for $840. Also, the Cattman Ypipe is a piece of cake to remove for those who need to go in for warranty work. The headers are NOT going to be something you simply remove each time you need to go to the dealer.

$820 = TS ECU + Cattman Ypipe = 13whp + 8whp = 21+whp and extended redline to take advantage of power curve.
$840 = Stillen Headers = <20whp PLUS the HUGE cost or PITA for install.

Pretty simple decision to me.

 

The logical step would be to have the headers put on first, then ECU programmed to compensate. Remember, ECU should be one of the last mods on your car, if you want the most potential out of your set-up. Peace_

 

UNLESS you are going to drive to TS for custom tuning on your car, you'll see the same gains.

They set the A/F ratio to 12.5:1, which is still way rich for NA, so you'll only lean it out little by little with additional NA mods.

 

go with both

 

Exactly, for $6 bills +, I would hope they would do SOME tuning. Case specific of course......

 

**** i didn't know it was 495!!!
I think i am going ot buy that before the Y-Pipe
Can i buy that straight from that website you posted up 2k2wannabe??

 

It's <$5 bills for the standard NA ECU program.

Custom tuning will cost a bit more, I bet.

 

You have a 2K, correct?

This is ONLY for 2K2+.

Vote here if you're interested in having TS make an ECU for our cars:
http://forums.maxima.org/showthread.php?t=253161

 

**** my bad...sorry bro
I was all excited...

 

When Will had his headers installed last week I went to the shop he got it done at after work. He got to the shop at 2:30PM I got there around 6pm, his car was already off the rack and in back of the shop. His wallet was only lighter by $225.00. Oh and only 1 guy did the work, I was very impressed to say the least. Knowing how it was done but not being that skill I think I can do it myself in double that time.

Brian has already said he is interested in finding out how they will fit the 3.5 and I don't see any harm in waiting a little while for some people to dyno the $tillen set and seeing if Catt's set fits. No one has Catt's Y in their hands yet but it should be soon. I would like to know what I'm spending my money on and not go in blind and find out it's not what I expected. We'll have more info soon, instant gratification can lead to buyers remorse...

 

Oh and the price for the ECU update does not include any updates or tweaking. Having the setup you will have for a while will if nothing else save you the down time of sending the ecu out more than once.

 

Unless they incorproate their new y-pipe into their Header design. Then putting a set of headers out would HELP sales for their Y.

Something to consider about the ECU - you have to send it out to them and turn your Maxima into a vegitable while you wait for it to come back... with the headers you only have install-time to worry about.

But I agree - ECU + y-pipe sounds like the best bet...

 

I'm passin on the headers, my car is loud enough with the Greddy catback. I want the ECM upgrade bad, but I need to do a little more research before ordering. My credit card is beggin me to put $ 495 on it.

 

No offence to Brian or anyone else but I'll believe the gains on a Y for a 2k2+ when I see them from an independant source.

 

$820 = TS ECU + Cattman Ypipe = 13whp + 8whp = 21+whp and extended redline to take advantage of power curve.
$1065 = Stillen Headers + install(or PITA 8-10hrs install) = <20whp



AGAIN, are you planning on going in for warranty work? Removing the Y-pipe is a DIY piece of cake compared to spending 8-10hrs yourself and I wouldn't even consider paying someone to remove/install it everytime I go to the dealer.

Brian isn't dumb. He knows MOST people here aren't going to go through the trouble of buying his $7XX 3.0L headers and then modify them to fit a 2K2. I talk to him quite often and he's not considering it. Not to mention the flow difference of a 3.5L vs. 3.0L.

 

The standard NA ECU program will be within 1-2whp for ANY NA mods you throw at it.

No need to send it back in for NA mods. Only once you go FI.

 

Can't. Shorty headers would be required and they don't produce gains on our cars. Long tube headers is the only way to get gains.


Or you can buy a spare ECU. That's what I'm doing, but more for warranty concerns then 3-days of downtime.

 

Where you gettin the spare from, none of my local bone yards have them. What would be a reasonable price for used one. ?

Thanks

 

www.car-parts.com

I paid $150+$15shipping for my VQ30 ECU.

 

12345678910

 

Still on the new side here, what does that mean, seen it a couple of times.

Thanks.

 

Can't just post a smiley anymore..10 character min. to post

 

for those who say there is no gains with the 02-03 y pipe look at my trap speeds. Find me an 02-03 auto thats trapping 98.22 on 18" wheels, and 99.97 on smaller radius 15's without the y pipe. Everyone always looks at peak gains when something is dyno, but the important part is whats gained throughout the curve.

 

babyblue,

Have you dynoed? If so, can you send me the run files? Thanks.

 

I dont have it anywhere else. A friend scanned it and hosted it for me.


This was with wsp b and y pipes, udp, and pop charger.

 

Im dynoing this saturday with wsp y and b pipes, UDP, GAB, and HKS rear section. I will be sure to get the files on disk and send them to you.

The dyno above was done around 9k miles so the car has gotten a little quicker. Guess we will see and ignore the 1st run dunno what happened. It was also done on a mobile dyno and everyone were getting crap numbers. This one will be done on a buried dyno jet.

 

one more thing I will be doin since I get to drive my own car this time is unlock the tq convertor. It locks up causing a dip right before 4k rpms as you can see in the plot. If I flip the car in 4th(od) right when this happens it unlocks the tq convertor and surges like 300rpms. It will spike the dyno but Im just wanting to see if it helps out the peak numbers.

 

VERY very interesting!

And PLEEEEEEASE do NOT forget to get those files on disk for the new thread I'm putting together. Your car is a 1/4-mile BEAST and would be a nice addition.

 

no problem I will have them for you this weekend

 

Good info there.