Headers?
 

Those of you with headers when emissions inspections come around what do you guys do? Bolt on the stock ones? Also is there a current header on a market that still gets power gains and is catted and won't cause a CEL? Doubt it but that's a question, also how would you run the headers so it would pass inspection if it didn't have cats would a tune cover all that up?:sigh:

HKS and FA20 club both have a EL header with catted option.

I think nameless will release a EL header with catted option soon.

P&L also has a catted EL option.

Any issues with emissions?

The UEL headers are pretty hard to spot unless you're looking. Just have to make sure there is no CEL.
I live in California and bought the car out of state. That means I have to smog it now, and every 2 years henceforth. The real question is whether or not the remaining CAT is sufficient to pass the sniffer.

HAHAHA

The key to passing emission testing in most states is to be CEL free. There are 4 ways to do this while running a header.

1: Catted header
2: Mini-cat or spacer on 2nd O2 sensor
3: Relocate 2nd O2 sensor behind 2nd cat
4: ECUtek or BRZedit tune to eliminate CEL

I'm not sure how strict PA is but here in MD I passed 3 times with a turbo and no cats using only a spacer on the 2nd O2 sensor.

Not sure why you're laughing.... The catted STX legal header should be for sale this month, the more agressive design will follow shortly

Have you had to test already? I'm curious about this since I might be moving to the bay area. I'd love to get headers but the whole emissions check is scaring me.

That's what I was thinking thank you very much for clearing that up, the thing is thats really one of the only ways to get 200 WHP NA so the FRS/BRZ can defend themselves

So in the end the key to 200 whp, is full header-back exhaust, headers, intake, tune

...and don't forget stickers.

LOTS of stickers

Sadly, that won't be enough to reach 200whp except maybe in ideal conditions on a very generous dyno. You'll also need to run E85 with a E85 tune which should get you the missing 15-20whp. I'm pretty sure that no one has reached 200whp without E85.

All things considered I decided to go with the Innovate SC and pass on the $100 per whp stuff. $3700 for 220whp/193wtq on 93 with stock intake and exhaust.

interesting:clap:

AFAIK, registering an out of state car in California requires a smog.
If mine doesn't pass, it's not that big of a deal to put the stock exhaust manifold on for the test.

For some reason I didn't get this notification.

None for me, but I also have a tune.

Doesn't California have a provision for cars that are newer than a certain threshold? Here in NY, you go for the state inspection every year, but the first two years do not involve an emissions test. Every year thereafter, it's an OBD2 test (basically plug in to the OBD2 make sure no CEL's or codes, sensors in ready state, good to go).

There's an entire thread devoted to those who have achieved 200whp without e85. Not only is it possible, but I think we will see it more often; those waiting for Nameless headers and such ought to be posting initial dynos by the end of the month if the release date of mid July is correct.

Yea I think WRXgoose was one of them he got 200.5 Wheel horsepower

I think in California with CARB an all its way stricter they might even do visual checks instead of OBD2 like in NY or here in PA

See this:

http://www.dmv.ca.gov/vr/smogfaq.htm

http://www.ft86club.com/forums/showthread.php?t=41352

pretty dang close to 200whp on 92 pump. performed by drift office too so it's not some over inflated, unknown 3rd party dyno

My point was more that not everyone with a header, intake, full exhaust and tune will automatically reach 200whp even though a few have.

Yea but you'll get damn well close to it for under $6000 (quite a bit of money), and I don't think one of those stage 2 tune from gt86speedfactory will do it, it would have to take maybe a day of dyno tuning (almost an hour away from me) with a qualified ecutek tuner.:iono: but its worth it to have the torque dip disappear and to may the car at least defensible to some of competition

the region you live in makes a difference on the power; elevation, temperature etc... plays a big part in what power everyone makes.

headers have been one of the best mods for power next to a tune.

What's the $6000 for? A 300whp turbo setup? ~200whp should only cost ~$3000 or ~$100 per whp. I know that stock whp figures vary from 140 to 170 but since all the ~200whp dyno sheets were on Dynojets, we should also use the Dynojet base of ~170whp. IIRC one of the 200whp Dynojet cars only made 173whp on a Mustang, which probably reads about 140whp stock. Good luck with your build. :)

Good point! Elevation and available fuel are huge!

A header is the best bang-buck mod, IMO. That's why I chose to replace my exhaust from front to rear.

[/QUOTE] A header is the best bang-buck mod, IMO. That's why I chose to replace my exhaust from front to rear.[/QUOTE]

Agreed. I'm just getting the headers. The downstream stuff presents diminishing returns based on the reading I've done here. Did the same on my old B16 and SR20DE cars.

Agreed. I'm just getting the headers. The downstream stuff presents diminishing returns based on the reading I've done here. Did the same on my old B16 and SR20DE cars.

I was thinking of also getting headers and a tune after talking to one of the guys from DA Motorsports yesterday at SPOCom. I'm just wondering how loud it'll be. I used to have a full exhaust setup on my old Tiburon and got pulled over a couple times before deciding not to deal with the trouble. Any one know if it's within legal sound limits?

That would be awesome if it does pass the sniffer.

Suspension setup as well and anything else drivetrain

Agreed. The further back in the system, the less benefit there is from increasing exhaust system capacity. The smaller oem pipe can actually help maintain gas velocity as EGT is reduced, especially after passing through the cats. This being what people really mean when they say incorrect stuff about needing "backpressure".

A header with stock exhaust on the 86 sounds great, IMO. Not too loud at all.

http://www.ft86club.com/forums/showthread.php?t=37081



I see. The only racing I plan on is some auto-x and 1/4 miles just for fun so I only want wheels, tires and more torque. :) Besides, I spent $6k on my last car and recovered maybe $1000 when I sold it. If I had been smarter I would have invested that $6k and had $10k instead.

Agreed, that does sound good. Not too loud either. Plus Jegs has em for $574 shipped... If i don't get off the computer soon I'm gonna spend $574.

As a NY resident, this is excellent news. Just ordered a RevWorks UEL (no cat on their product), and assumed I may have to reinstall stock pieces once a year.

...Sorry OP, I have nothing to contribute to your initial question :D