The only one I know of is the PPE header. I personally haven't installed one, but I know someone that has it on a 1zz on a MR-s. It has made quite a difference over stock. Its not cheap either. Monkey wrench racing sells PPE. Check their site. I don't remember if PPE is the only one they sell.

 

there used to be more makers of headers for 1zz corollas, DC had one, and a company called JPPerformance (defunct I think). I have been using the JPperformance once for about 7 years now.
it is a direct fit, "short runner", equal length, ceramic coated stainless piece. I think the flanges on it are mild-steel though, as they are starting to show surface rust, but the runners are still clean. Ill get a picture when I get home.

 

My JP Performance Exhaust (out of business) home-made style header does not have equal length runners as does DC Sports and PPE.

http://www.dcsports.com/4-2-1header1/THC4405_Toyota.html

http://www.ppeengineering.com/products/toyota/corollamatrix/1zzfesxr.php

 

lol fine. "close to equal" length. as close as makes no difference.

 

Wow... I see why it's still in not so bad condition. :surprise:

 

I also once had a "ebay/china" header from a company called MIMO USA. it looked like a direct fit, but actually didn't quite mate to the outlet flange perfectly. I drove with it for about a week but was getting WAY to much exhaust fumes inside the cabin of the car to deem it acceptable. would have required some "custom" fabrication of the downpipe to make it work. I promptly tossed it in the scrap bin and put the stock one back on until I got the JPP one about a year later.

 

Anyways, back to OP's question...
PPE's is probably the best, long tube headers are always best in N/A and supercharged applications. but the DC style short-tube is a pretty good value. I'd contact DC and make sure they still stock them or if they can still make you one.
and as always, maximum gains from performance parts is only achieved with proper ECU tuning. but just bolting a header onto a factory tuned car will still net some gains

 

If I may ask some of you who are running headers, did you experience any statistically relevant gains in fuel economy or just power?


Sent from my iPhone using Tapatalk

 

I would say no, not gains anyway, more like decreases. but it's difficult to attribute that to the header on its own, and not the fault of the driver driving more aggressively because more noisy equals more fast. LOL
and that's true of any mod, really. Unless and engine is being tested in a controlled environment, any appreciable changes to performance or fuel economy can't be directly attributed to whatever modification was done. That's why engine and vehicle manufacturers test their products for literally years before they are released to the public, because science. for instance, prototype testing for whatever model-year 2020 (and probably beyond that) is already going on for any given OEM, I guarantee it.

 

for that goal, I'd start with getting lower rolling resistance tires, lighter wheels, making sure all suspension and steering components are up to snuff and all in alignment, and making the car as aerodynamic as possible. that sort of stuff will help fuel economy WAY more than changing the exhaust piping would. Oh, and also driving habits that match that goal, that is probably most important! lol

 

40 mpg is achieveable. I have been able to reach that on a 1zz for quite sometime. As TRD stated in his last post, low resistance tires and make sure tires are always properly inflated. Also, lighten the load on the interior. Meaning, don't have the passenger area and trunk area with weight. The EPA numbers are mostly based on the driver only and 93 octane I believe.