I guess if you really suspect that AGP FMIC then get a Buschur 4.5" FMIC and sell that one after. It's a big USA core and will give you the best HP numbers.

 

This


with this


They pulled it right off of their demo car and slapped it onto my car without changing the MAPs and it gave me around 15whp more.

I used to be a single tip exhaust guy always thinking dual exhausts was for V or flat sytle engines but now I understand the reason for this dual. In order to keep the sound levels lower and keeping the best flow, they went with the dual. They said if they were to make the same amount of flow on a single tip, it would be too loud and it wouldn't pass inspection here.

 

Thks for the photos.
That is an exotic looking exhaust.
Based on what you posted, I'm gonna go for twins.

 

Is it just me, or does anyone see there something being wrong with needing 8 hours on the dyno. Hope you weren't charged by the hour.

Without formal AIT and pressure drop testing on the AGP vs. stock, I think the FMIC debate is a dead end.

 

The exhaust looks good, but is it press-bent at the turns?

 

I don't know how to look up really old posts.. but i am pretty sure AGP posted specs on their fmic. I can also tell you they are running thier car very hard with extremely impressive dyno sheet using their fmic... For specifics, can someone find the AGP posts from back in feb-march range? might have even been early april.

either that or maybe ben or someone else from agp will chime in.

I also don't want to go saying what i am remember from the specs on their fmic as i wouldn't want to mislead / give false info

 

I was charged a flat rate of $2000 USD for this tune which includes the dyno fee. It took so long because they were swapping parts and all the previous maps that they made didn't work well with my setup. They also do multiple dyno runs with each map or part to make sure they can get readings from cold and hot engine temps. Adjusting maps usually took about 10 min, then to load it on the car took about 15min.
At the end, it turned out that the car was making less power because of the high intake temps (after the intercooler) and a restrictive exhaust. Once we swapped out the exhaust the intake temp decreased a little (less exhaust pressure) but it was still much higher than other logs he had of similar setups and conditions.

Do you really think this intercooler company did some extensive testing with this product? If all of you noticed, this intercooler was available shortly after the release of the vehicle in the US. Do you think they tested it well? Was it tested in high ambient temps or only in winter temps when this thing was made? Do they have a climate controlled room where they can test it in various conditions? Although the JDM model was released months before the US model, this intercooler was available way before ARC or Blitz (which just came out) and HKS is still testing their's. To me, it seems like they just used a core that they used in the past with other cars and just made tanks that "fit" the EvoX and slapped it together.

It's a full titanium exhaust and I heard you really can't bend it so this is what they did:



You can view the shop's blog here.

 

SiC, I just checked all the FMIC on the market now .. except for AMS.. all of them look to have similar end tanks .. including ARC ..

Could it be something else? maybe core design?

I compared
ARC
AMS
ETS
AGP
BR

I do know the FMIC I have from ETS is like almost 100% heavier than ARC
And based on a previous test my friend had .. because it's lighter, it was unable to shed the heat after repeated runs ..

 

Yeah... any titanium piping for anything (intakes tubes, IC piping, and exhausts), the Japanese do it like that for some reason. Cut a bunch of tubing at angles and weld together. Labor intensive to say the least. Crazy *****.

FYI, that design is the same basic design as the GTR factory exhaust. If you want high flow and too keep it quiet at the same time, you need a dual muffler design and this is one way to do it.

 

FWIW, the vast majority of ICs have crappy end tank designs for getting even flow distribution inside the IC. I don't think ANYONE puts any real R&D into the flow through the internals of the IC based on endtank design. Often times though, endtanks are designed the way they are for packaging concerns.

 

check out perrins endtanks! they did some testing

 

To tell you the truth, I have no idea what is wrong with the design. But when the shop showed me the data logs of other cars running the same mods as mine on the same maps, ambient temp, & humidity. It made me believe this IC wasn't cooling as much as others. The shop pointed out to me that although the entire IC and pipes are pressurized at 24psi, air is more than likely only moving thru certain portions of the IC due to the tank design.

BTW, they had a prototype HKS IC on their demo car that hasn't been advertised yet.

 

Nice looking exhaust.

 

have you tried any thermal phenolic gasket between the intake mani to the head to see if the temp drop? also what are you running for your air intake; open cone, box? did you use any type of insulation to lower the temp that your intake is sucking in?