MRF X-Pipe - 24 HP/18 TQ gains OVER the Akra Evo?!? Something's in the Kool-Aid

[AV9]

Ah the mythical unicorn seems to trounce the competition. Not a day goes by where I take my MRF Velaforza system for granted; so grateful to have such a powerful and clean sounding system.

Seeing all these numbers really makes consider boosting my car - given that I already have the key piece of this puzzle to maximize my gains. Great write up Sasan, thanks for sharing!

[esquire]

Originally Posted by Tim B.

The net result is that my car is now putting down 581 peak hp, on 91 octane.

Just wanted to share the update for those who were curious.

you are killing me with this! Wish I had the funds to spring for this now

my understanding is that malek is taking PARTIAL deposits now. I don't think you need to make a large financial commitment right now if you want to order one

[lsmkr01]

Originally Posted by Phanto///M

Cant wait to put this x-pipe on my car

Me either... Praying Malek finds it in his heart to start production soon.

[Phanto///M]

Originally Posted by esquire

my understanding is that malek is taking PARTIAL deposits now. I don't think you need to make a large financial commitment right now if you want to order one

That is correct. Hes taking a 500 deposit. Already placed mine. When the pre-order is filled is when they will go into production.

[Lucrecio84]

Why did they stop production on the MRF X-pipe if it put out such good numbers?

[BURAKUSTA]

Do you have any pictures of that x-pipe ?

[whats77inaname]

Originally Posted by BURAKUSTA

Do you have any pictures of that x-pipe ?

Search...in this very thread, no less....

http://www.m3post.com/forums/showpos...7&postcount=37

[esquire]

Originally Posted by Phanto///M

That is correct. Hes taking a 500 deposit. Already placed mine. When the pre-order is filled is when they will go into production.

So 500 deposit then? Good info. Thanks.

Originally Posted by Lucrecio84

Why did they stop production on the MRF X-pipe if it put out such good numbers?

There are a million reasons why it could have happened - supply chain problems, product didn't pick up enough traction in the marketplace, fabrication problems, etc etc. Lot of good products have had this issue - a great example is the challenge rear diffuser. Everyone loved it, and it was out of production for over a year. Anyway, this is all conjecture. Only Malek can really speak on this with any degree of accuracy.

Originally Posted by BURAKUSTA

Do you have any pictures of that x-pipe ?

I think there is a picture earlier in this thread.

[playground]

That is a very nice pipe... What is the price and do they fit an E90!

[Malek@MRF]

Originally Posted by AV9

Ah the mythical unicorn seems to trounce the competition. Not a day goes by where I take my MRF Velaforza system for granted; so grateful to have such a powerful and clean sounding system.

Seeing all these numbers really makes consider boosting my car - given that I already have the key piece of this puzzle to maximize my gains. Great write up Sasan, thanks for sharing!

Glad you continue to enjoy the Velaforza system on your car! Thank you for the kind words.

Originally Posted by lsmkr01

Me either... Praying Malek finds it in his heart to start production soon.

It's going to happen as orders and demand is increasing rapidly.

Originally Posted by playground

That is a very nice pipe... What is the price and do they fit an E90!

Please contact us directly for pricing as it is against forum rules for me to publicly post pricing in the non-vendor section of the forum.

It will fit ALL E9x M3 cars, so that would include the E90.

[Malek@MRF]

Originally Posted by esquire

Introduction:
Went back to EAS recently just to see if adaptations on my car resulted in any improvements (or worsening) of performance with the MRF midpipe on my car. I was expecting to see no gains, and maybe a little loss since ambient temperatures and humidity were higher than on my previous MRF midpipe run. That didn't happen - we saw measurable gains.

Summary: The MRF midpipe now measures, 24HP/18TQ PEAK gains over the AKRA, consistent 30HP/25TQ gains throughout the midrange, and Top End gains of 28HP/18 TQ over the akra. My car is now putting down 581 HP/377 TQ, on 91 octane.

Here is a quick synopsis (I'll update with something more replete when I'm not at work):



Conditions and Results:

I've laid the results out below in two separate STD graphs below. The green line is the best of my runs on the akra midipe; the red line is the best of my previous runs on the MRF midpipe run - in other words the green and red lines are the exact same dyno runs/graphs as in my initial post. The new blue line is the best of 3 runs done with the MRF midpipe just yesterday(July 18, 2013). Each of the three runs were within one or two horsepower of one another (so very consistent results), and were all higher than my runs from about a month ago where i initially measured the MRF mid pipe (by about 7-12hp) , despite temperatures and humidity also being measurably higher this time around.

As with before, I've included vertical lines at 6250 RPM to show midrange gains, and 8250 to show gains at traditional redline (again, this is relevant because my car's rev limiter is raised to 8600 RPM).

Comparing the MRF gains over the Akra, we will be comparing the Blue Line (newest MRF run), to the Green Line (original Akra Run). The Red Line (previous MRF run) is only there by way of reference for people who want to see exactly how the power bands lined up.


Again this is all on Shell 91 Octane. No other modifications have been made to my car since last time.

Vertical Line at 6250 RPM




Vertical Line at 8250 RPM

For whatever reason I couldn't get the conditions to show here on this graph (evidently I don't know how to use this software nearly as well as EAS haha), so here they are listed below.

Akra Run (green line) - Temp: 94.72F, Humidity:4%, STD: 1.01
Initial MRF Run (red line) - Temp: 84.35F, Humidity 24%, STD: 1.02
Most Recent MRF run (blue line) - Temp: 86.16 F, Humidity 26%, STD: 1.02



Discussion & Analysis

Whereas before PEAK gains over the Akra were 16.5 HP/ TQ, the NEW runs measured 24 HP/ and 18 TQ peak gains over the Akra Midpipe.

Again the most impressive part of the whole thing to me are the mid-range torque and HP gains created by the MRF midpipe. They are WAY higher than the Akra Mid. The MRF midpipe is now measuring a consistent midrange delta's of ~30HP/25TQ over the Akra. By way of reference, the graph with the 6250 RPM vertical line is actually measuring a 31 HP/26 TQ gain over the akra at that RPM point. This makes the car feel like a fucking rocket. Pardon my french.

The MRF midpipe also measured more top end gains than its already-impressive previously measured gains over the Akra. Whereas before, at 8250 RPMS, the MRF midpipe measured 22 HP/14TQ gains over the Akra (see dyno graph in my initial post) - the newest runs now measured 28HP gains/18 TQ gains over the Akra.

The net result is that my car is now putting down 581 peak hp, on 91 octane.

Just wanted to share the update for those who were curious.

Awesome numbers Sasan. With a mix of 91+100 octane fuel, I am anticipating your car will break the 600 RWHP mark on your base ESS 625 kit.

Unfortunately the dyno's cannot correct and compensate for the DME's mapping changes due to ambient conditions, it will only adjust and normalize the external conditions. In better weather, the car would be pulling less ignition timing and therefor yielding even better numbers.

It's awesome to look at the data and see that it still does so well even in worse conditions compared to the last dyno you had with your MRF mid-section.

OLD MRF Velaforza Mid-section conditions: 84.35 deg, 24% humidity
MAX RWHP 573.52, MAX RWTQ 375.89

NEW MRF Velaforza Mid-section conditions: 86.16 deg, 26% humidity
MAX RWHP 581.21, MAX RWTQ 377.58

RWHP Delta (Gain) 8.31, RWTQ Delta (Gain) 1.69

-Malek@MRF

(both runs STD correction factor of 1.02)

[duk]

this midpipe is a direct replacement for akra evo (mid section) exhaust?

like bolt off the akra mid section and bolt on the mrf?

if u are using ess akra tuning will it hurt the mrf perf?

[esquire]

Originally Posted by duk

this midpipe is a direct replacement for akra evo (mid section) exhaust?

like bolt off the akra mid section and bolt on the mrf?

if u are using ess akra tuning will it hurt the mrf perf?

this midpipe is a replacement for any midpipe, including the akra midpipe. it doesn't ONLY replace the akra midpipe.

[lsmkr01]

Originally Posted by esquire

this midpipe is a replacement for any midpipe, including the akra midpipe. it doesn't ONLY replace the akra midpipe.

Really wanting to hear your set up. A tiny bit worried about excessive rasp with no resonators.

[esquire]

if you were in California i'd invite you to come pay me a visit and check it out for yourself. mated with the akra rear - the exhaust noise is VERY liveable from the interior and sounds like an F1 car from the exterior

[lsmkr01]

Originally Posted by esquire

if you were in California is invite you to come pay me a visit and check out it our for yourself. mated with the akra rear - the exhaust noise is VERY liveable from the interior and sounds like an F1 car from the exterior

Geezz... I'm almost sold on that description alone. Malek seems to be a big fan of the akra + mrf combo but i was thinking ESS rear. Maybe a smarter more to just pay up front and do it right the first time.

[Someone?]

I wonder what kinda power increase there would be over the Akra on a NA car? Anyone have any idea?

[esquire]

Originally Posted by lsmkr01

Geezz... I'm almost sold on that description alone. Malek seems to be a big fan of the akra + mrf combo but i was thinking ESS rear. Maybe a smarter more to just pay up front and do it right the first time.

if you already have the ESS rear , mate the MRF mid to it first. if you think there's room for improvement then go to the akra rear - that's my suggestion

[esquire]

Originally Posted by ibmike

I wonder what kinda power increase there would be over the Aka on a NA car? Anyone have any idea?

maleks car is doing 400+ whp with just his exhaust and a tune - nothing else. so that should give you an idea.

remember the gains I'm discussing here are over AKRA. Akra by itself creates gains of about 25whp on an NA car. it's safe to say you'll be making more than that with the MRF midipipe which weighs almost exactly the same as the akra mid and is cheaper. another thing is the mrf will probably create a lot more midrange torque gains than the akra on an NA car - and that's where you want the gains the most

[onnex]

Man, I miss mine so much. Went to the akra after, and there's definitely a difference in power, and I miss that sweet sound when its WOT. Malek, much to your dismay, I may be after another unit if you ramp up production again Definitely keep me posted.

Memories...

[ZTFerrari]

PM me for pricing - I might want in on a preorder

[Ezio]

Originally Posted by onnex

Man, I miss mine so much. Went to the akra after, and there's definitely a difference in power, and I miss that sweet sound when its WOT. Malek, much to your dismay, I may be after another unit if you ramp up production again Definitely keep me posted.

Memories...

looks like a MAN`s exhuast