Ace 4-2-1 Header

[strat61caster]

FWIW I am also considering this header and an OFT, as I want to build an STX car which necessitates a catless header and tune for competitiveness, which would not be emissions legal, these would be part-time modifications that I would not want to keep long term as I would plan to upgrade to a CARB legal FI kit after competing, I believe both pieces would be easy to sell afterwards keeping long term costs down while getting me most of the gains.

No denying CSG is right, you'll get more oomph out of ECUtek and quality intimate time with a reputable tuner, not to mention potentially a better guarantee of safety and possibly a limited warranty, and it wouldn't be too big a hassle to coordinate with a vendor to get the CARB legal FI tune onto my car with the ECUtek license I purchased prior.

I see this (OFT) as a viable simple alternative, especially for those without access to a reputable tuner and are looking at hundreds if not thousands of extra dollars to fly one to their location along with renting dyno facilities from someone who may be miffed that you don't trust them to tune your car.

Edit: I do have the unfair advantage of driving 30 minutes to Shiv's doorstep and pounding on it to get problems fixed. Custom tune is not off the table and I have no problem with those improvements going out for free, sharing is caring and 2-3 horsepower to the competition won't be the reason I loose.

[Fricke]

I am running the 4-2-1 A 350 on my time attack car, and I am on oem engine mounts, and no rubbing on the subframe, the only thing that I did is that I market out wher the header was rubbing the engine under tray, and laid it on a wooden piece and pounced out those areas, and that stopped the rubbing and vibrations

[NotSoJDM]

Originally Posted by ohmai18

Can the vibration from the Type A 350 be caused by installation? It needs to be spot on? Does Type B 350 suffer from the same issue?

There is no real margin of error installing this header, in my experience. They are a tight fit onto the exhaust studs in the head, and the overpipe joint has a unique flange shape that is mostly aligned by the 3 studs in the overpipe. Then you just align both flanges flush with each other and tighten the nuts. Pretty straight forward.

Type A and Type B both utilize the same 150/250/350 overpipes so it's not unique to one header type.


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[CSG David]

Originally Posted by Brzzee

So ok, I'm a slow guy with a Type A 350 coming early next year. Will the STI engine mounts combined with a Whiteline transmission insert prevent contact?

I'm considering Swains White Lightning exhaust coating which adds 0.015" a side or 0.030" total to the diameter of the collector. Damn that job with GE small engine business group back in the day with coatings on blades and combustor cans.

Can u speculate on the combination of the engine mounts and coating keeping parts out of contact? Daily driver with several go fast track days a year planned.



Thanks

You will be fine. Just some fun bit of observation on our part...We also found that the surface temperature of this header to be a little bit lower than the leading competitive headers in the market. We found this to be a bit interesting, but the discoloration is no where near other headers we've toyed with...and that's with proper tuning too!

[CSG David]

Originally Posted by NotSoJDM

Thanks for your feedback.

For what it's worth, I have a Type B/350 with 67k on my car, and it rubs as I've described above.

Another local has a Type A/350 with 24k on his car, and it rubs in a similar fashion to mine.

To provide feedback to those who are reading this thread, this has been my personal experience with them in daily driven cars, not those dedicated to track use.

I'm not refuting your findings, just adding to the sample size, and providing feedback for another sector of the market.


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Honest feedback is good and what we want from everyone (we encourage all of our clients to provide honest reviews). Every BRZ/FRS is slightly different so this is all good information to have!

[Shiv@Openflash]

Originally Posted by tracerit

Pardon me, but is this a serious response? If so this would be something I'd consider doing in a few months. I'm only questioning it because even though the OFT is open source, OFT would be charging someone for a custom e-tune and I'm not sure they'd be please with that person releasing it for everyone else. I guess only @Shiv@Openflash can answer that?

We have no problem with customers releasing their custom e-tunes to the public. Once you purchase the e-tuning service, everything you get from that point onwards is yours and you are free to do what you want with it

[CSG Mike]

Originally Posted by Shiv@Openflash

We have no problem with customers releasing their custom e-tunes to the public. Once you purchase the e-tuning service, everything you get from that point onwards is yours and you are free to do what you want with it

Of course not... it adds value to YOUR product.

[Tekno Virus]

Originally Posted by NotSoJDM

Thanks for your feedback.

For what it's worth, I have a Type B/350 with 67k on my car, and it rubs as I've described above.

Another local has a Type A/350 with 24k on his car, and it rubs in a similar fashion to mine.

To provide feedback to those who are reading this thread, this has been my personal experience with them in daily driven cars, not those dedicated to track use.

I'm not refuting your findings, just adding to the sample size, and providing feedback for another sector of the market.


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Have you spoken to anyone running the 250 and 250? Was their experience similar?
I'd rather not tinker with the motor mounts to be quite honest.

[NotSoJDM]

Originally Posted by Tekno Virus

Have you spoken to anyone running the 150 and 250? Was their experience similar?
I'd rather not tinker with the motor mounts to be quite honest.

I have not had any experience with the 150 or 250, so I can't really give you any feedback there.

I'm not saying you will 'definitely' rub with this header on, but just like ACE states when buying a 350 overpipe, mounts may be necessary. I have noticed that it rubs less on my car when it is cold out (30-40F), so I would imagine on a car with fewer miles, and cold climate, you wouldn't have any issues.

[07jazzrs5gt86]

So with type a +250 op will adding the straight FP create more drone?
I'm thinking which FP I should go with this setup and don't want much drone.
Will ace make a FP with cat or resonator?

[JimmyMac]

I think if you have the stock catback, then you won't have any drone. I've ran an EL header, with both a catted and uncatted FP and did not have any drone with the stock catback. Once I changed out the catback it was drone city. At least from my experience.

[AceHeader-MT]

Hi Everyone,

We'd like to help answer some of the comments as of late:

Q- Are AM motor mounts required?
A- No, but highly recommended for 250 or 350 OP's

Q- Does Ace make a catted system?
A- No. Our headers are run around the world and emmission standards are different everywhere. We don't want to get involved with this.

Q- Will Ace sponsor my car?
A- Sure. PM or email for this information. Depending on class, car build and experience different arrangements can always be reached. We've always been racers first!

Q- Will Ace continue to produce Type A's?
A- At this point no. Manufacture time is way too long with over 40+ hours of welding. CSG remains the only game in town for these


Upcoming:
1. We are in the process of releasing another OP design for RHD owners. We've been working hard to try and get similar torque curves to the 350. Expect this will be available in about 8 weeks.

2. A large supercharger company has recently agreed to do some testing and help Ace to come up with an optimal FI header design/complete system. This is about 6 months away.

3. CSG/Laguna Muffler is still in early Beta testing stages. Please contact CSG directly for more information.


Finally, we want to say a very big thank you for all the support the community has given us. The feedback has been invaluable and the fact the "new guys" in exhaust are getting this level of respect is a real honor for us and our small (now 6) person staff.

Thanks again to all those who came out to Sydney Motorsports Park for the WTAC event. Awesome race weekend and nice to see all the awesome rides of the NSW 86 club. Live the Dream!

Happy Driving,
Team Ace

[CSG Mike]

Originally Posted by JimmyMac

I think if you have the stock catback, then you won't have any drone. I've ran an EL header, with both a catted and uncatted FP and did not have any drone with the stock catback. Once I changed out the catback it was drone city. At least from my experience.

I can verify ZERO drone with an ace header + Ace fp, or a straight pipe, or an oem front pipe, or even a high flow cat front pipe.

Any drone created with an Ace header, is the result of your catback exhaust, not the header or front pipe.

[solidONE]

Originally Posted by AceHeader-MT

Hi Everyone,

We'd like to help answer some of the comments as of late:

Q- Are AM motor mounts required?
A- No, but highly recommended for 250 or 350 OP's

Q- Does Ace make a catted system?
A- No. Our headers are run around the world and emmission standards are different everywhere. We don't want to get involved with this.

Q- Will Ace sponsor my car?
A- Sure. PM or email for this information. Depending on class, car build and experience different arrangements can always be reached. We've always been racers first!

Q- Will Ace continue to produce Type A's?
A- At this point no. Manufacture time is way too long with over 40+ hours of welding. CSG remains the only game in town for these


Upcoming:
1. We are in the process of releasing another OP design for RHD owners. We've been working hard to try and get similar torque curves to the 350. Expect this will be available in about 8 weeks.

2. A large supercharger company has recently agreed to do some testing and help Ace to come up with an optimal FI header design/complete system. This is about 6 months away.

3. CSG/Laguna Muffler is still in early Beta testing stages. Please contact CSG directly for more information.


Finally, we want to say a very big thank you for all the support the community has given us. The feedback has been invaluable and the fact the "new guys" in exhaust are getting this level of respect is a real honor for us and our small (now 6) person staff.

Thanks again to all those who came out to Sydney Motorsports Park for the WTAC event. Awesome race weekend and nice to see all the awesome rides of the NSW 86 club. Live the Dream!

Happy Driving,
Team Ace

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