A Brief History (2.5L + Performance + Dyno Charts + Build Thread)

[nothing-leaves-stock]

yes a sri will help a BIT....because higher rpm's.

[DerekH]

yes a sri will help a BIT....because higher rpm's.

Would you say that you are better off with the stock exhaust mani over a long tube header with an sri? Just curious, might sell my header and get an sri if that is the case. Don't really feel like taking it off though lol

[nothing-leaves-stock]

IMO. if you have to choose between a SRI/software and a header/test pipe?
go with the SRI/software.
then add header LATER...but i'd say a EVO header.
but i'd do a sri/software 1st, you'll see a better gains this way.

we did over 200whp with a sri, software, evo header, test pipe and 2.5'' exhaust.

[mk racer]

I have an 09 rabbit, and I have an sri, eurojet headers and full 2.5 exhaust and unitronic stage 2 flash, which mobile 1 did for me, and I've got an appointment with them for an exhaust leak repair, but I said to throw in a dyno run or two so I will be posting up a video and some numbers later tomorrow. Im debating whether or not to toss the headers and go back to the stock exhaust manifold, see which gives me a few extra horses

[spdfrek]

Damn everyone is getting dyno time at Mobile One. I really need to stop by the shop and hangout more like I used to.

[madbikes]

This is definitely a good read. I'd like to dyno mine some day.

[thygreyt]

do it!

then post them all

[TylerO28]

I have an OEM header for sale if anyone needs one! And the stock cat/down pipe! Could easily be modified should anyone decide they would like to keep some back pressure! Any takers? I'm seriously angry they are sitting in my garage!

Regardless, please post up comparisons for the n/a crowd! I'm really surprised by the OEM header! Its very strange looking, doesn't seem to have runners, almost instant 5 into 1 with a plenum in there

[thygreyt]

it does kind of have runners, they are hidden inside the shell

[nothing-leaves-stock]

have you cut oe open?
they don't have any runnings. just little sections...its wierd, but no runners

[thygreyt]

have you cut oe open?
they don't have any runnings. just little sections...its wierd, but no runners

I saw a pic from vw' s training pdf

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[pennsydubbin]

lol and then if anyone else wants stock headers I have 2

[nothing-leaves-stock]

we cut up a exhaust AND intake manifold...both interesting

[spdfrek]

And the stock cat/down pipe!

If you were closer I might be interested but with shipping it wouldn't be worth it.

[H3LVTCA]

Finally got around to editing a teaser video I shot with my new GoPro!

[Gans]

Great thread!!

[itskohler]

MOAR POWER!

Nice thread. Makes me wish I had started something like this. I would hold on the the headers and just add the SRI in there with a 2.5in exhaust like mk racer did.

[2.5low]

MK racer... what happened with the dyno? im in a pending with a eurojet header as we speak and would like to know what your outcome was.. considering i dont have sri, id like to know if anyone has this combo.

Intake+SRI+Eurojet headers+Exhaust(awe)+Tune=???

[Rabbidrabbitt]

Intake,Sri and sri tune you will be ecstatic. Worry about exhaust and headers later. Headers are a bit of a pain to install Sri overall easier install. When you add it up Headers anywhere from 250 to 1k ,16 lugs and bolts about 1 to 3 dollars a piece (you need longer lugs and have to take out old ones good luck) custom mid pipe 20 to 100 dollars, high flow cat or test pipe 100 to 300 dollars, exhaust 300 to 1000 dollars + labor and hardly any hp gains or 100 to 300 on intake and another 1300 on sri and tune and a hour install and you will have a N/A car that will give GTI's a run for their money. Save and do it the right way if you can get the eurojet headers at a good price get them but you will be disappointed with just headers. Trust some of us that have gone through the headaches that you wont have to endure

[2.5low]

well the install wouldnt be untill mid summer anyway.. EJ headers come with test pipe.. hoping to do the install altogether.. c2 sri so i dont have to get new plumbing.. not sure what software.. prob um.. due to less problems.. being most had to send back ecu or ran into probs with the tune unless they were at the shop from what ive read and gathered.. no exhaust yet so id have to wait regardless.. its really going to be a few months to get everything and the cash to do so..

hoping i was one of the mega winners...

[Rabbidrabbitt]

I have not had any problems with my C2 tune and SRI and I was one of the first Rabbits to have the C2 SRI and Tune. And You do not need exhaust to Run the short runner.

[thygreyt]

You sure can. But as it was said before: first go with a mani, then with the headers. Manis will yield more power.

And yes, um is a great one stop solution.

Sent from my HTC Sensation using Tapatalk

[H3LVTCA]

Added some BFI engine/transmission mounts last month - they're awesome!

I'm finally considering upgrading the intake and the intake manifold.
Who around here has experience with the Neuspeed P-Flo?
How many manifolds are on the market now?

[thygreyt]

Added some BFI engine/transmission mounts last month - they're awesome!

I'm finally considering upgrading the intake and the intake manifold.
Who around here has experience with the Neuspeed P-Flo?
How many manifolds are on the market now?

i had a neuspeed p-flow!

same 2: UM and C2

[H3LVTCA]

i had a neuspeed p-flow!

For intakes, is it still Evoms>Eurosport>Neuspeed>Carbonio?

[thygreyt]

idk.. they are all the same, sorta.

if you are going with an intake mani, then dont buy any intake at all!

[vwluger22]

There is also BSH cai intake but depending on which SRI you get a intake could be a waste of money.

[H3LVTCA]

I don't like the BSH intake. Personally it worries me when the instructions to install a product describe the first few steps as "uncoil and cut into the MAF wiring loom".

I'd like to have an intake manifold at some point.
Integrated Engineering seems to be working on a lot of great things for the 2.5L. Maybe I'll hold out until they drop their intake manifold. Seeing how the 1.8T manifolds turned out, I can only hope that the 2.5L ones they're developing are just as great.

[vwluger22]

I don't like the BSH intake. Personally it worries me when the instructions to install a product describe the first few steps as "uncoil and cut into the MAF wiring loom".

You aren't cutting any wires you are just removing a little bit of tape around them and then re wrapping them.

[H3LVTCA]

Finally got around to compiling footage and editing an Autocross run that I did back in June.
The angles are pretty terrible but the audio is what most folks are looking for.
This video was prior to me installing the Stage 2 BFI mounts.