Those of you who have used aftermarket headers meant for WRX

ciper · Post by **ciper** » Thu Jul 10, 2003 1:07 am

Im interested in what headers have been installed and any issues that have been found. Most likely they will all fit but I wonder if any headers exist that may have trouble (interfearance) on the legacy turbo.

Impressions of the headers are welcome as well

ej22t · Post by **ej22t** » Thu Jul 10, 2003 3:12 am

For the header from US WRX are not work on our BC/BF turbo legacy, the bending had little off bit.
The only hearder you could use are come from GC WRX
Ben

ciper · Post by **ciper** » Thu Jul 10, 2003 3:54 am

I dont think you are correct, Ive read many times that everything works, except that your exhaust after the downpipe needs lengthened

viewtopic.php?t=1434

kelley · Post by **kelley** » Thu Jul 10, 2003 4:16 am

i have used hks headers (meant for a gd impreza wrx) for abour a year. they bolt right up. no differance. I like them alot. on my set up they gained over 500 rpm of useable topend. they sound great and oh there pertty.

magicmike · Post by **magicmike** » Thu Jul 10, 2003 12:17 pm

I have a set of gt spec headers I'm sure you've seen. I have them posted in a link in the photo forum under viewtopic.php?t=1423 I dont know what the gains are as of yet because the motor is still sitting in my basement

but they are for a '02 wrx and they bolt right up. The only problem I had was where the up-pipe attaches to the bracket at the turbo flange end. its about 4mm too short. This makes the turbo sit 4mm lower than normal but I havent seen a problem with this yet.

ej22t · Post by **ej22t** » Thu Jul 10, 2003 1:56 pm

Thanks for the correction!

Ben

ciper · Post by **ciper** » Thu Jul 10, 2003 7:15 pm

magicmike: 4mm is not very much, perhaps your specific header is actually an odd unit (where other gt spec units wouldnt lower it that much).

ej22t: No prob, now you can go get some headers for your car

magicmike · Post by **magicmike** » Sun Jul 13, 2003 4:45 pm

Upon closer examination its aproximately 1cm. The coolant line that runs down the side and below the turbo hits the block. I'm going to machine a spacer for it at work. As far as mine being a defect I'm not quite sure. I read on Subarureview.com that the up-pipe was a bit short but it was at a very fair price and the rest of the header is very very well manufactured.

Mike

FrmRgz2Rchz · Post by **FrmRgz2Rchz** » Sun Dec 07, 2003 8:47 pm

Will there be a difference if I use the stock uppipe instead of the GT-Spec uppipe?

FrmRgz2Rchz · Post by **FrmRgz2Rchz** » Mon Dec 15, 2003 7:54 am

GT-Spec Header

I'll answer my own question. Yes. There is a difference, using the stock uppipe will not leave a gap. I got the GT-Spec header on today and used the stock uppipe. Everything fit perfectly.

I have found that my bottom end suffers just a bit. It takes just a wink longer for the turbo to hit full boost, ~16psi, when I shift into 2nd. I also think the exhaust got deeper and quieter. I still have the stock downpipe, so I account the quietness to that. Overall, I am pleased with the result. I haven't pushed it hard on top yet because the roads aren't the greatest and winter tires like to get squirrley at higher speeds.

One more thing, #2 and #4 runners are a little closer to the bumper than the stock one. If you look under there, there is some wiring harness attached along the inner edge of the bumper. You might want to try and pull it farther away from the pipes with a zip tie or something.

ciper · Post by **ciper** » Tue Dec 16, 2003 8:22 pm

How about the interaction of the headers and the oil cooler/filter?

NICO · Post by **NICO** » Tue Feb 10, 2004 10:30 pm

ciper i just put my new headers on and they fit perfect no problemo hear. they are HKS headers and down pipe it all fits perfect, no problem getting the oil filter of. it will fit the legacys like they made it for our cars.

kelley · Post by **kelley** » Tue Feb 10, 2004 11:12 pm

hey nico. how's it goin. haven't heard from you in a while.
so you finally got those hks headers. I hope you like them.

FrmRgz2Rchz · Post by **FrmRgz2Rchz** » Wed Feb 11, 2004 4:12 am

I now think I should have doubled up the gasket from the header to the uppipe. I've got a little leak.

Kelly · Post by **Kelly** » Wed Feb 11, 2004 6:20 am

This bolted right into my Leg.
I dont know the difference between it and the factory, cause I did my downpipe and exhaust at the same time.

I will say a nice thing about it, is the slip joints will allow it to kinda "mold" into place.

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Those of you who have used aftermarket headers meant for WRX

Those of you who have used aftermarket headers meant for WRX