DC sports header installed.

[largeorangefont]

I picked up my car from AEM today with the DC sports header on it. It is ceramic coated, and finish and fit look great. I can't comment on the install because I didnt install it. It seems pretty straightforword to install.

The header is a 4-1 equal length design. The runners are probably 4 inches longer then stock or the Megan header. The collector is right at the flange to the midpipe, as opposed to the stock and megan headers that have the collector, and a couple inches of single pipe to the flange. The longer runners will give the car more torque in the low to mid range.

Currently all I have on the car is an NST pulley and the header. The car has more low and midrange power. You can definately feel the increased pickup. It seems to rev more freely and pulls a bit more on the top end. I assume I will see more of a top end gain when I replace the exhaust and intake. I am very impressed with the gains. I would say the gains are as much if not slightly more noticeable than the pulley. I was a bit worried that I would lose low end power from this but that was not the case at all. The car sounds completely the same. There is no difference in pitch or tone with the stock catback.

http://i15.photobucket.com/albums/a386/largeorangefont/IMG_0573.jpg
http://i15.photobucket.com/albums/a386/largeorangefont/IMG_0574.jpg
http://i15.photobucket.com/albums/a386/largeorangefont/IMG_0575.jpg


Ashley

[Motorhead6T5]

Sweet. How much$$$??

[cdmyaris]

pictures pictures dyno dyno chart chart info info!!!!!

[ChinoCharles]

Good stuff Ashley! I'm glad someone figured out how to cram some long runners in there. It will be good for the N/A crowd. :biggrin:

[cali yaris]

pictures pictures dyno dyno chart chart info info!!!!!


LOL

[cdmyaris]

yeah lol. But really, take your time. I will be good boy and patient for the picture and result :thumbup:

[reznunt]

price? parts/labor?

[largeorangefont]

They used my car for R&D so I got it for free. They have an axleback coming out too. I was supposed to get that as well, but unfortunately it didn't happen this time.

[nqd]

ya know...sometimes i wish i lived on the west coast

[ChinoCharles]

Free stuff FTW

[largeorangefont]

Free stuff FTW


No, Gentleman Jack @ Costco FTW!

[Astroman]

Wow, I've been waiting for the DC headers for about a year now when I first heard they were in development. Does this mean they will be available soon? :smile:

[ChinoCharles]

No, Gentleman Jack @ Costco FTW!

AH! Fine taste my friend, fine taste!

[ROCKLAND TOYOTA]

FREE IS FOR ME but the east coast gets no love.....

[Galavoxx]

I've been wanting a header since WeaponR teased us about a 4-2-1. Sounds like DC may have come out with a decent alternative. Can't wait to hear more.

[largeorangefont]

I've been wanting a header since WeaponR teased us about a 4-2-1. Sounds like DC may have come out with a decent alternative. Can't wait to hear more.

Honestly, I think the DC design is better than cramming 3 merge collectors to make a 4-2-1into that small of a space.

[cm07yaris]

will this be available only in ceramic or will they produce it in chrome/polished?

[blueskana]

ETA on this???

[Nabisco]

Quality stuff.

[tk-421]

This sounds very interesting indeed. Maybe a good alternative to the 4-2-1 header that I've been waiting for as well? I also really liked the fact that you actually felt some gains in the low-to-mid ranges, since IMO this is what this motor desperately needs more of.

Thanks for the info, and hope to see some pics soon!

[whooppee777]

pix damnit:needpics:

[blueskana]

largeorangefont; I know you said you just got thier prototype, so what do you think is up with this...

http://autosportstyle.com/shop/toyota-2007-yaris-sports-ceramic-header-thc4407-sports-ceramic-header-p-65558.html

.... pre-ordering maybe???

[Galavoxx]

The Jam!!!

:thumbup:

[WeSellCarParts]

I asked on Friday and the header and axle back (still waiting to see if lift back or sedan since they are releasing both) are available for purchase now. I will be adding the header later today and the axle back once I figure out which one has been released.

Also, the strut bars (Front and Rear) will be ready in about 4-6 weeks.

Thanks

Dan

[largeorangefont]

largeorangefont; I know you said you just got thier prototype, so what do you think is up with this...

http://autosportstyle.com/shop/toyota-2007-yaris-sports-ceramic-header-thc4407-sports-ceramic-header-p-65558.html

.... pre-ordering maybe???

I got a production piece. Apparentaly they are available now.

I know the axleback is for the liftback, because I saw it on my car a few months ago. Not sure if they are making an axleback for the sedan or not.

[cleong]

Curious if there are any pictures?

[yarisdarkness]

+1

come on yen!! you've seen the actual product and installed so why are you asking for picts yen hahaha it was done at your house for a fellow memeber. I might sell my gf dc headers any intrested been on the car for a 2 -3 weeks

[YarisTom73]

ya know...sometimes i wish i lived on the west coast

I feel your pain, man...

[Joker]

Generally 4 into 1 headers are designed for gains in the higher rpm range (5000+) which also generally means you lose your bottom end. As most people on this board know that normally aspirated cars will benefit from intake/exhaust/header mods but carefully choosing these parts is the key. I also know that only about 2-3 people on the board actually put their car on a dyno. I would be curious what gains if any this header provides under 5000 rpm vs. the stocker. Not everyone tools around at 5 grand plus all the time. Just my 2 cents....

[YarisTom73]

Generally 4 into 1 headers are designed for gains in the higher rpm range (5000+) which also generally means you lose your bottom end. As most people on this board know that normally aspirated cars will benefit from intake/exhaust/header mods but carefully choosing these parts is the key. I also know that only about 2-3 people on the board actually put their car on a dyno. I would be curious what gains if any this header provides under 5000 rpm vs. the stocker. Not everyone tools around at 5 grand plus all the time. Just my 2 cents....
I think you make a good point, particularly considering the VVTi takes over at higher RPM and thus the bottom end is already the weaker end of the spectrum when it comes to our Yaris' powerband. So, if there is even the most remote chance that this or any header could reduce bottom end power, count me out :thumbdown:. There's two more cents :laugh:

[largeorangefont]

Generally 4 into 1 headers are designed for gains in the higher rpm range (5000+) which also generally means you lose your bottom end. As most people on this board know that normally aspirated cars will benefit from intake/exhaust/header mods but carefully choosing these parts is the key. I also know that only about 2-3 people on the board actually put their car on a dyno. I would be curious what gains if any this header provides under 5000 rpm vs. the stocker. Not everyone tools around at 5 grand plus all the time. Just my 2 cents....

I'm not going to waste the money to dyno the car, but there is a noticable power increase BELOW 5000 RPM. The car even takes off from a stoplight easier. The bottom to mid range gain was more dramatic than the top end gain.

Keep in mind, all I have done to the car is the header and a light crank pulley.

****PICS ADDED TO ORIGINAL POST****

[Joker]

I'm not going to waste the money to dyno the car, but there is a noticable power increase BELOW 5000 RPM. The car even takes off from a stoplight easier. The bottom to mid range gain was more dramatic than the top end gain.

Keep in mind, all I have done to the car is the header and a light crank pulley.

Not to really get into this but how do you know there is a "noticable" power increase below 5000? Louder doesnt equal more power. Smoother doesnt equal more power. As far as the car taking off from a stoplight easier, again this doesnt indicate you GAINED anything. As far as the pulley goes, it does nothing in terms of performance other than lightening up your car by a whopping 3 lbs.

The standard rule of thumb, at least in drag racing is for every 100 lbs of weight loss you gain 1 tenth of a second in your eta. Thats 1/10, not 1 second.

If spending 50-75 to dyno a car is a waste of $ to you then great, you should have more of a concern spending 250+ to gain nothing.

As far as the header design goes, check DC's own site....4 into 1's are high rpm applications (5000-8000 rpm)....Not my words but DC's.....

Peace

[bladesmith6]

Alright, everyone put their balls away... If the car feels faster, unless you are racing at the track, isn't that all that really matters??? If it accelerates more smoothly(and this car could really use it, damn drive by wire!!!) for most of us who cares how many tenths you gain. Most people enjoy the car on a daily basis EXACTLY BY THE WAY IT FEELS when you drive it, not by what some meter tells you. If you want the tenths and to dyno it, feel free, but for the rest of us, the butt dyno is more than enough. And by the way the DC sports header is supposed to have a longer tube design that compensates for the lower rpm problem, sounds valid to me.

[largeorangefont]

Not to really get into this but how do you know there is a "noticable" power increase below 5000? Louder doesnt equal more power. Smoother doesnt equal more power. As far as the car taking off from a stoplight easier, again this doesnt indicate you GAINED anything. As far as the pulley goes, it does nothing in terms of performance other than lightening up your car by a whopping 3 lbs.

The standard rule of thumb, at least in drag racing is for every 100 lbs of weight loss you gain 1 tenth of a second in your eta. Thats 1/10, not 1 second.

If spending 50-75 to dyno a car is a waste of $ to you then great, you should have more of a concern spending 250+ to gain nothing.

As far as the header design goes, check DC's own site....4 into 1's are high rpm applications (5000-8000 rpm)....Not my words but DC's.....

Peace

Im not going to argue with you, but suffice it to say I know what I'm talking about and I've been tuning cars for about 5 years. My other car is a 550 HP Cobra, and I would rather waste money on it than the Yaris. I got the header free BTW.

The header did not make the car louder at all. The header did not make it any smoother. It has a bit more power, that is it.

True, a 4-1 is a design geared towards topend, but longer primaries give more bottom end. As I explained in the original post, this header has longer primaries, and that is where the increased low end has come from.

Ashley

[Joker]

Alright, everyone put their balls away... If the car feels faster, unless you are racing at the track, isn't that all that really matters??? If it accelerates more smoothly(and this car could really use it, damn drive by wire!!!) for most of us who cares how many tenths you gain. Most people enjoy the car on a daily basis EXACTLY BY THE WAY IT FEELS when you drive it, not by what some meter tells you. If you want the tenths and to dyno it, feel free, but for the rest of us, the butt dyno is more than enough. And by the way the DC sports header is supposed to have a longer tube design that compensates for the lower rpm problem, sounds valid to me.


I can appreciate your opinion, some people simply want to THINK they are gaining something by spending $ on this mod and that. I posted for some of the less experienced people on this board. I personally dont see the point of spending $ on a claimed "performance" mod and gain nothing. Why buy a preformance part in the first place?

As far as the longer tube design, etc. of the DC Header....all you need to do is stroll over to DC's website like I said, its all spelled out in black and white. 4 into 1's are designed for high applications (5000-8000 rpm). Note they specfically make headers designed for Low-Mid rpm range, their 4 into 2 into 1. Why would a manufacturer make different header designs? Headers are application specific thats why.

Ashley--I'm glad you received the part for free, others on this board will not. I dont need to boast about how long I've been tuning and modifying cars but I will tell you its alot longer than 5 years. I have been semi-pro drag racing for more years than you have been tuning cars. I have a Cartech twin turbo charged mustang that in its current state of tune lays down in excess of 900+ hp to the wheels with over 1000 ft lbs of torque and runs mid to low 9's in the quarter mile AND those claims can be backed up w/dyno's and timeslips.

As far as your claimed 550 hp Cobra, unless you have had it on a dyno then its paper horsepower. Because a manufacturer claims you will gain XXX amount of horsepower doesnt mean you will. I have heard it all before, how someones car runs 10's, 11's doesnt really matter yet the car has never been down the quarter mile track before.

Like I said originally, my post was to geared toward the inexperienced people on the board and there seems to be plenty. I just dont want to see people wasting their money on items that provide little or no benefit to them.

Peace

Tony

[AlphaFox]

I dont need to boast about how long I've been tuning and modifying cars but...

BUT, you just did...

[Crandall]

I've been looking at performance parts for the Yaris for quite some time now and it looks like the quality of the header is good. I know a lot of people who have had good experience with DC on their Honda's.

If I pick one up it will be off to the dyno for me shortly after. If you do have a chance to dyno your car I'd love to know how much (or little) you get.

[nqd]

BUT, you just did...

your such a smart ass

[largeorangefont]

I can appreciate your opinion, some people simply want to THINK they are gaining something by spending $ on this mod and that. I posted for some of the less experienced people on this board. I personally dont see the point of spending $ on a claimed "performance" mod and gain nothing. Why buy a preformance part in the first place?

As far as the longer tube design, etc. of the DC Header....all you need to do is stroll over to DC's website like I said, its all spelled out in black and white. 4 into 1's are designed for high applications (5000-8000 rpm). Note they specfically make headers designed for Low-Mid rpm range, their 4 into 2 into 1. Why would a manufacturer make different header designs? Headers are application specific thats why.

Ashley--I'm glad you received the part for free, others on this board will not. I dont need to boast about how long I've been tuning and modifying cars but I will tell you its alot longer than 5 years. I have been semi-pro drag racing for more years than you have been tuning cars. I have a Cartech twin turbo charged mustang that in its current state of tune lays down in excess of 900+ hp to the wheels with over 1000 ft lbs of torque and runs mid to low 9's in the quarter mile AND those claims can be backed up w/dyno's and timeslips.

As far as your claimed 550 hp Cobra, unless you have had it on a dyno then its paper horsepower. Because a manufacturer claims you will gain XXX amount of horsepower doesnt mean you will. I have heard it all before, how someones car runs 10's, 11's doesnt really matter yet the car has never been down the quarter mile track before.

Like I said originally, my post was to geared toward the inexperienced people on the board and there seems to be plenty. I just dont want to see people wasting their money on items that provide little or no benefit to them.

Peace

Tony

Tony,

You are missing the point. This header is designed to make more low end than the FACTORY design. The OEM manifold is 4-1, with very short primaries. The DC is 4-1 with longer primaries. Saying that 4-1 is great for 5000 RPM+ and referencing DC's website is irrelevant to the conversation. If you are a semi pro drag racer you know that there is more to a header design than the merge collector. Without touching the midpipe cats (which is illegal for roadgoing cars) it would be VERY hard to make a 4-2-1 header that works well with the space the in the Yaris. If you did it would be close to double the cost.

A dyno print out IS paper horsepower, but I'm glad you have verified the power of your car with timeslips. Yes I have dynoed my Cobra, but I don't drag race it, it is set up for open track. My experience reference was trying to tell you that I know what I'm talking about when I stated there was a noticable improvement from adding this header. If you want to talk total experience, this is not the place to discuss our failed racing careers.

[largeorangefont]

I've been looking at performance parts for the Yaris for quite some time now and it looks like the quality of the header is good. I know a lot of people who have had good experience with DC on their Honda's.

If I pick one up it will be off to the dyno for me shortly after. If you do have a chance to dyno your car I'd love to know how much (or little) you get.

To be honest i'm just too lazy to put the stock manifold back on, dyno it, then reinstall the DC and dyno again.

[Crandall]

To be honest i'm just too lazy to put the stock manifold back on, dyno it, then reinstall the DC and dyno again.

I have a rough idea what it makes stock to the wheels, if you go by the general rule that there is roughly 12% loss of power through the transmission when trying to figure out WHP. I'd like to know what you make now with just the header.

But if you're not going to dyno the car there is no worries ;)

[cleong]

Thanks for that LOF, got a better idea now.