HEP 2.5 manifold review

[tay272]

So I finally got my new manifold bolted up yesterday, thanks to Pennsydubin and APtuning. I have to say that the piece itself is made extremely well and is a quality product. It took longer then I figured to install but thats the price you pay for getting a prototype haha. After it was all said and done, Im pretty happy with it. The car has lost some of its low end power a bit but it more then makes up for it in the mid range and top end. It also has a more linear pull of power throughout the entire power band. Theres no more surge of power after 3k rpms, its just a smooth transition and then pulls hard up top. Also, the sound that the engine now makes is unlike any other car I've heard. I thought the engine sounded bada$$ with just my testpipe and intake, but combined with this it had a higher, sportier tone but still has most of the growl from before. It sounds awesome when you really open it up, Im sure Ill be turning heads alot of places. I will have more info on the setup when I get some questions answered, but until then this is all I have to review on at the moment. More info will be coming within the week.

[HIBB 304]

Awesome thanks for the review.

[turtles]

sound clip please

[tay272]

Ill try to get a vid up or something but no promises.

[tay272]

Alright, got the questions answered I needed so I have some more info to share. The software that goes with the manifold didn't take when I was flashed with it so I cant exactly give a full review of everything yet. This saturday Ill be taking my car back to AP to get it retuned with a revised edition from Jeff so after that Im sure Ill really feel the power out of this thing and have a better review to give on everything. Ill keep everyone posted

[nothing-leaves-stock]

waiting for dyno charts.

[pennsydubbin]

[spartanrabbit09]

waiting for dyno charts.

+1

[thygreyt]

waiting for dyno charts.

^^^

[nothing-leaves-stock]

dyno before and after software PLEASE

[BluMagic]

can't wait to hear how the flash does... i've been tryin to set mine up for weeks!

[KulturKampf]

Without the flash would you just get a lean code like with a cold air intake...or do you need a flash?

Sent from my Droid Incredible

[vwluger22]

In for dyno results.

[BluMagic]

Without the flash would you just get a lean code like with a cold air intake...or do you need a flash?

Sent from my Droid Incredible

no flash required for compatability reasons ... everything after the maf is kosher.

Only to get max performance from it

[tay272]

I will post up my dynos before and after so everyone can see the difference in power. Jeff is gonna be at AP this weekend too and will be tweaking his Rabbit, should be a very interesting day. I really can't get over the sound the engine makes now though, I just wanna stomp on it everywhere I go lol. This weekend isnt gonna come soon enough

[vr6vdub97]

Subscribed

[bluegraph]

I'm making the drive to APTuning this weekend as well to get flashed by Jeff and possibly get his new intake manifold as well. I feel like a kid at Christmas again. I'm so excited to make some decent N/A power on this engine.

I'm glad to hear that the power surge is gone from the engine at 3k RPM. This is exactly what I've been waiting for!

Two huge thumbs up for Jeff and his development on this engine

[tay272]

Ill probably be seeing you there then haha. Trust me, this thing will not disappoint in any way.

[bluegraph]

sounds good. I'm really excited to see the manifold. It sounds like a completely amazing product.

[pickles and mayo]

Tagging thread. Sound clip/vid?

[Tom@APTuning]

Sorry for a rough picture but it's the end of day and best quality I'm getting right now lol

The wacky looking dyno is manifold with stock software

The better one obviously is manifold with United Motorsport specific software.

[tay272]

Man you guys are quick haha. I am so happy with the software for this manifold, the car is unbelievably more quikcer then it was. Thanks again everyone at AP for setting me up on the dyno and thank you Jeff for flashing my car with this awesome software! I've had a chance to drive my bros 06 Gti and I have to say it feels just as fast as that, but even faster up top. My car pulls like a maniac now. Im very pleased with the end results.

[Tom@APTuning]

No problem man I'm glad Your happy

Get the tire fixed and we mess around on the dyno some more lol

[JAK-RBT]

holy crap 44hp gain after tune

This is insane guys I have to get my hands on this setup! Jeff is a god

EDIT: btw, tay u need to get this thing to the track asap i wanna see that rabbit in the 14's

[4door1.8T]

sooo, how much for the manifold and software and how fast can i get it lol oh and do you have pics of this manifold?

[markfif]

what other mods do you have? 44hp from just an intake manifold seems a bit much honestly. Well at least for an n/a car. Maybe if this was a 2.5T i could see these results no problem. Sorry for the doubt but this just seems too good to be true, but hopefully it is

[~kInG~]

HEP intake manifold + UM software tuning

[markfif]

I know that he had software as well. I would expect gains of maybe 25-30hp from this mod.

But..... if all this is legit, lets see where we can buy this manifold and tune because I want to be in that line

[JAK-RBT]

I know that he had software as well. I would expect gains of maybe 25-30hp from this mod.

But..... if all this is legit, lets see where we can buy this manifold and tune because I want to be in that line

Stop doubting and start believing if u read the thread u will see that the first dyne was done with whatever mods he had previously plus the HEP intake mani with no software. The 2nd dyno that showed a gain of 44 hp was done with all previous mods plus HEP intake mani AND united motorsports intake mani software. Car is 100% NA

[markfif]

does he have any other type of work done to the car though? maybe some head porting or higher compression pistons? im very excited about these numbers though.

[JAK-RBT]

does he have any other type of work done to the car though? maybe some head porting or higher compression pistons? im very excited about these numbers though.

No. Read Tay's signature. Nothing more than exhaust and cold air intake. I don't think ur getting the point the only difference between the first dyno and the second was that second dyno had software on the car for the intake manifold which resulted in a gain of 44 hp. Nothing else contributed to that gain

[tay272]

Yep he said it right. The first run was with only the manifold, my intake, and my test pipe performance wise. 2nd dyno is with the software and trust me the car is much faster, I was racing a civic si on the way home today and he was having trouble keeping up haha. These numbers are legit and so is the manifold, this is top quality stuff guys. Glad to see I peaked more interest in the manifolds tho, anything to help make the 2.5 community alittle better.

[vr6vdub97]

No. Read Tay's signature. Nothing more than exhaust and cold air intake. I don't think ur getting the point the only difference between the first dyno and the second was that second dyno had software on the car for the intake manifold which resulted in a gain of 44 hp. Nothing else contributed to that gain

calm down he was just asking haha.

how much does the intake manifold and software run?

[tay272]

holy crap 44hp gain after tune

This is insane guys I have to get my hands on this setup! Jeff is a god

EDIT: btw, tay u need to get this thing to the track asap i wanna see that rabbit in the 14's

Im gonna try to get it there before the winter but I deffinately need some new tires haha, my fronts are as bald as an old man right now. Most likely tho Ill be waiting till spring time

[vwluger22]

Looks good I think I will need to start saving my change and hopefully they will continue to produce these for awhile.