ACE Header Independent Testing Results and Review - 199.6WHP on CA 91 Octane

[CSG Mike]

Originally Posted by DukemLuke

how does the clubsport 400 compare to the type A 350? your site claims it was designed for RHD but will fit LHD. is there any rubbing anywhere?

More torque, less power. Perfect for people that want all their power at low RPMs, and don't care to wring out the engine to redline.

[Bramick]

Originally Posted by CSG Mike

More torque, less power. Perfect for people that want all their power at low RPMs, and don't care to wring out the engine to redline.

Burnouts and donuts!

[Hawk77FT]

Ok, here are my impressions of the CS400


1. Installation: Very easy to install. Undo the engine mounts from the frame, lift the engine up about 1 inch, and slide that overpipe extension in with no problems. Let it hang in there and install the header, slide the overpipe in the 3 holes and put the bolts in. Make sure you don't tighten anything yet. Once header and overpipe are in position, start tightening the bolts. Done!


2. I am sure everyone wants to hear the driving impressions. Went for a long drive and my first five minutes were...I am not going to lie...smiliar to B250. Well, it behaved exactly like the B250 (and by that is not like B250 is bad in any way.) Did couple of half throttle, hard acceleration, etc...and after about 30km it started to feel different. Went for a drive next day and WOW what a massive difference. The low end torque has improved considerably and it just pulls like a bull. The more I drove it the better it got. I have an OFT tune for the B250 so I think it took a bit of time to learn the new set up!


After almost 500 km I can say that these are perfect for low end torque increase. So if you do a lot of hill climb, mountain run, or short tracks this is perfect. After 2500-3000rpm it just starts pulling up to 6000-6500...where it becomes kinda flat. The power delivery is different. On B250 it felt like a consistent and smooth increase across the rev range even at 7000 rpm...while the C400 feels like a very steep increase in torque and flat at about 6500.
I am planning to drop a 4.55 final drive in my car to get a bit more go...and I think coupled with this, I should have a nice grin on my ugly face for a long time!

[CSG David]

Originally Posted by Hawk77FT

Ok, here are my impressions of the CS400


1. Installation: Very easy to install. Undo the engine mounts from the frame, lift the engine up about 1 inch, and slide that overpipe extension in with no problems. Let it hang in there and install the header, slide the overpipe in the 3 holes and put the bolts in. Make sure you don't tighten anything yet. Once header and overpipe are in position, start tightening the bolts. Done!


2. I am sure everyone wants to hear the driving impressions. Went for a long drive and my first five minutes were...I am not going to lie...smiliar to B250. Well, it behaved exactly like the B250 (and by that is not like B250 is bad in any way.) Did couple of half throttle, hard acceleration, etc...and after about 30km it started to feel different. Went for a drive next day and WOW what a massive difference. The low end torque has improved considerably and it just pulls like a bull. The more I drove it the better it got. I have an OFT tune for the B250 so I think it took a bit of time to learn the new set up!


After almost 500 km I can say that these are perfect for low end torque increase. So if you do a lot of hill climb, mountain run, or short tracks this is perfect. After 2500-3000rpm it just starts pulling up to 6000-6500...where it becomes kinda flat. The power delivery is different. On B250 it felt like a consistent and smooth increase across the rev range even at 7000 rpm...while the C400 feels like a very steep increase in torque and flat at about 6500.
I am planning to drop a 4.55 final drive in my car to get a bit more go...and I think coupled with this, I should have a nice grin on my ugly face for a long time!

We were informed of this CS400 header being shipped out to you by ACE. Glad to see some reviews for this and a validation of how the powerband was.

We will be offering this option for guys looking to improve their low-midrange powerband.

[churchx]

Hawk77FT: was mentioned OFT tune retweaked for CS400 after switch from B250 or used as is?

[Reamer]

Originally Posted by churchx

Hawk77FT: was mentioned OFT tune retweaked for CS400 after switch from B250 or used as is?

Sounds like it was used as is and he waited for the AFR to adjust, but this is speculation and I don't know how tuning really works in detail as far as what the ECU still adjusts dynamically after OFT.

Sent from my ONE E1005 using Tapatalk

[Hawk77FT]

Originally Posted by churchx

Hawk77FT: was mentioned OFT tune retweaked for CS400 after switch from B250 or used as is?

it wasn't tweaked at all...it was basically used as is. I don't even want to think about what this header will be like with a proper dyno tune, E85 and final drive! Actually I do want to think about it!

[Reamer]

Originally Posted by Hawk77FT

it wasn't tweaked at all...it was basically used as is. I don't even want to think about what this header will be like with a proper dyno tune, E85 and final drive! Actually I do want to think about it!

Are you running an auto or manual gearbox? I'm impatiently waiting on my 350 to come in and hearing how the 250 and 400 perform I'm expecting a happy medium and it will be dyno tuned with my OFT. I am debating getting the FD done as well down the road, but we'll see.

Sent from my ONE E1005 using Tapatalk

[Hawk77FT]

Originally Posted by Reamer

Are you running an auto or manual gearbox? I'm impatiently waiting on my 350 to come in and hearing how the 250 and 400 perform I'm expecting a happy medium and it will be dyno tuned with my OFT. I am debating getting the FD done as well down the road, but we'll see.

Sent from my ONE E1005 using Tapatalk

Manual gearbox . I would have gone 350 if the overpipe would've fit on the RHD cars.
A dyno tune and a FD will make you very very happy driver! Low mid torque will be massively improved.

[tracerit]

@Hawk77FT

Does the CS400 sound similar to these videos from Ace? [ame="https://www.youtube.com/watch?v=2Iw02bH7lfk"]Ace Header ClubSport 400 In-car Test - YouTube[/ame]
[ame="https://www.youtube.com/watch?v=LGxhLPWOBhs"]ACE Header ClubSport 400 Drive-by 11's - YouTube[/ame]

That teeny RC car like sound is pretty awesome.

[Hawk77FT]

Originally Posted by tracerit

@Hawk77FT

Does the CS400 sound similar to these videos from Ace?

That teeny RC car like sound is pretty awesome.

I will do an in car video and drive by one too! I have 2.75 catted front pipe and Evo3 catback but with silencers in. It is pretty loud when accelerate but really nice sound. Nice rasp too.
To answer your question , yes..sounds similar.

So far so good! I am planning to ceramic coat them after I do a dyno and do the front pipe as well.

[Jmonty]

Waiting on my install and tune, updates to follow when complete

[Reamer]

Originally Posted by Hawk77FT

I will do an in car video and drive by one too! I have 2.75 catted front pipe and Evo3 catback but with silencers in. It is pretty loud when accelerate but really nice sound. Nice rasp too.
To answer your question , yes..sounds similar.

So far so good! I am planning to ceramic coat them after I do a dyno and do the front pipe as well.

Can anyone confirm that the 350 does not have a lot of rasp to it? I don't hear any in the videos in the OP.

[brzaapi]

Originally Posted by Reamer

Can anyone confirm that the 350 does not have a lot of rasp to it? I don't hear any in the videos in the OP.

I could be wrong in my thinking. But i believe most of your rasp and definitely the tinny sound, will come from having a catless front pipe. As long as you have a stock FP or high flow cat FP, I bet the sound will be less obnoxious. Then it would be a matter of picking a CBE to fit the sound profile you want.

However, this is my theory. But i am currently in the process of trying out a HFC FP to minimize the sound that i find annoying. I have had OFH, Tomei and ACE B350 headers on different BRZs. The header itself has never made the sound obnoxious. But the accumulative effect of catless header and catless FP is where you get more rasp, farty, tinny sounds. At least I hope thats true this time around.

In a few days will be sharing some audio files of the ACE B350 header w/ ACE catless FP. And then ACE Header w/ HFC invidia FP. Hopefully this will tame the sound (I'm pretty sure it will) and then i can still run STX if I so choose. Once I add the HFC FP, if the sound is not tinny obnoxious...I may even add a CBE myself. I like about 60% of the sound coming out of my car. I loathe the other 40%. I bet the catted FP will fix most of my sound issues. But the header performance can not be denied.

I will let you know soon.