I said I was going to put cats on the....

[whats77inaname]

Originally Posted by pbonsalb

MRF sure looks pretty much identical to AE, apart from the AE high flow cats in the primary cat position. While I agree 100 cell are the least restrictive cats available, I am still curious about the loss of power from 100 cell cats in the primary position versus no cats.

Straight from the proverbial horses mouth:

http://www.m3post.com/forums/showpos...5&postcount=61

Originally Posted by Malek@MRF

5) 100 Cell catalysts VS. Catless. Power wise, there is almost no difference at all, especially when high quality catalysts are used. If cheap units are used, they will eventually clog and restrict flow. In many cases, cheaper systems choke up the flow when excessively heated. This would not be the case with Akrapovic catalysts or HJS units. 100 CPI cats were tested during the prototyping phase of the MRF pipe and saw no difference in power and volume. The only aspect of the system that was affected was overall weight and it reduced a small amount of rasp, however overall volume was not changed. The MRF Velaforza mid-section was never produced with catalysts and never will be.

-Malek@MRF

I've talked to Malek quite a bit regarding how they set up in prototyping, and he said it was done with cats in the primary position.

Originally Posted by Malek

The only place you can install a cat is in the primary section of the exhaust system. Anywhere else the catalyst will not get hot enough to work properly.

[whats77inaname]

Update: the reducers I picked up were too small (the cats are 4.25" in diameter...my bad for not paying attention). The company from which I picked up the others don't sell a 4.25", so they recommended I pick up their 2" to 5" and machine off the end until I got the diameter I sought. Not a problem....until I looked @ the price: $391 each. Eff that. After about 3 days of searching, I found 2" x 6" SS reducers on eBay from a company in Australia. Cost? $288 shipped for everything. I ordered them last Friday, so they should be here some time in the next 2 weeks.

[lsmkr01]

I assume you picked up LongBoarders old X-pipe. I asked him about it right after he sold it. I'll be tuning in to see how this all turns out, glad your taking the time to do this a share the results

[whats77inaname]

Originally Posted by lsmkr01

I assume you picked up LongBoarders old X-pipe.

Afffirmative
http://www.m3post.com/forums/showthread.php?t=963366

Originally Posted by lsmkr01

I asked him about it right after he sold it. I'll be tuning in to see how this all turns out, glad your taking the time to do this a share the results

Not a problem. Figured I couldn't be the only person that wanted to know what a catted MRF will do.

[OM VT3]

i want this x-pipe but MRF don't email back

[Someone?]

Cool project, cant wait to see how it turns out, bad ass im sure.

[BMW Fanatik]

Originally Posted by leigh

i want this x-pipe but MRF don't email back

+1

From what I can gather they don't make it anymore. Either way, after how highly people talk about his shop I would expect him, or a receptionist, to at least respond to emails.

[whats77inaname]

Originally Posted by leigh

i want this x-pipe but MRF don't email back

Originally Posted by BMW Fanatik

+1

From what I can gather they don't make it anymore. Either way, after how highly people talk about his shop I would expect him, or a receptionist, to at least respond to emails.

They were supposed to start making them 3rd quarter last year.....then 1st quarter this year....got tired of waiting and picked up another x-pipe. Then when this used one came up for sale, I went ahead and picked it up and sold the other.

Try posting in the MRF x-pipe thread to get his attention. I've never had a problem contacting him either way (email/threads) which goes to say something as I've asked question, but haven't even purchased anything from MRF.

[dereksM3]

Originally Posted by whats77inaname

They were supposed to start making them 3rd quarter last year.....then 1st quarter this year....got tired of waiting and picked up another x-pipe. Then when this used one came up for sale, I went ahead and picked it up and sold the other.

Try posting in the MRF x-pipe thread to get his attention. I've never had a problem contacting him either way (email/threads) which goes to say something as I've asked question, but haven't even purchased anything from MRF.

Just curious as the AE Performance X pipe and MRF one look exactly the same. I would assume being that AE Performance is very close to MRF in California they manufactured them. Since AE has recently closed their doors that would lend me to believe these X pipes may not be made anymore? But...this is all speculation but seems to be the case.

[lsmkr01]

Originally Posted by dereksM3

Just curious as the AE Performance X pipe and MRF one look exactly the same. I would assume being that AE Performance is very close to MRF in California they manufactured them. Since AE has recently closed their doors that would lend me to believe these X pipes may not be made anymore? But...this is all speculation but seems to be the case.

///Matthew just told me Malek said the pipe he thought was AE was actually MRF so he already has a catted version. This thread will still be solid as it will provide real world unbiased numbers to all the speculation.

[Malek@MRF]

Originally Posted by dereksM3

Just curious as the AE Performance X pipe and MRF one look exactly the same. I would assume being that AE Performance is very close to MRF in California they manufactured them. Since AE has recently closed their doors that would lend me to believe these X pipes may not be made anymore? But...this is all speculation but seems to be the case.

It's a drawn out story, but AE temporarily got a hold of our mid-section system until we caught them. It ultimately wasn't AE's fault, since AE used our fabricator at that time and our builder thought MRF would never find out that he sold our our design to another company (breach of contract). All AE mid-section systems were physically built on the MRF fixture and tooling. Once AE was informed, they courteously complied.

[dfjaws]

I want this x pipe so bad. Please Malek, bring them back!

[whats77inaname]

Originally Posted by lsmkr01

///Matthew just told me Malek said the pipe he thought was AE was actually MRF so he already has a catted version. This thread will still be solid as it will provide real world unbiased numbers to all the speculation.

I'm going to have to say the numbers will be different than the AE, as I'm using 100 cell cats (which is what MRF used when they prototyped a catted version and realized no loss in power) vs 200 cell cats (which come with the AE).

[lsmkr01]

Originally Posted by whats77inaname

I'm going to have to say the numbers will be different than the AE, as I'm using 100 cell cats (which is what MRF used when they prototyped a catted version and realized no loss in power) vs 200 cell cats (which come with the AE).

The flow difference between 100 and 200 is minuscule if using quality HFC but makes no difference since independent numbers for either have never been posted. Keep us posted

[BMW Fanatik]

Originally Posted by whats77inaname

They were supposed to start making them 3rd quarter last year.....then 1st quarter this year....got tired of waiting and picked up another x-pipe. Then when this used one came up for sale, I went ahead and picked it up and sold the other.

Try posting in the MRF x-pipe thread to get his attention. I've never had a problem contacting him either way (email/threads) which goes to say something as I've asked question, but haven't even purchased anything from MRF.

I just saw your reply and I would have posted him directly. However, he has gone through this thread, even going as far as to reply to a comment. If he is still not interested in replying to me then so be it.

iPE F1 is what I will stick to!

[lsmkr01]

Originally Posted by whats77inaname

I'm going to have to say the numbers will be different than the AE, as I'm using 100 cell cats (which is what MRF used when they prototyped a catted version and realized no loss in power) vs 200 cell cats (which come with the AE).

Any updates??

[whats77inaname]

Originally Posted by lsmkr01

Any updates??

Yeppers, the reducers came in yesteday. Should be @ the machinist this weekend to have them cut down to the correct sizes

[lsmkr01]

Originally Posted by whats77inaname

Yeppers, the reducers came in yesteday. Should be @ the machinist this weekend to have them cut down to the correct sizes

Sounds good. Just got my MRF rear section put on and it sounds very aggressive with TP's. Now i'm itching to see what the whole system sounds like in person. It has no rasp with stock x-pipe w/ TPs so yours should have a similar affect with the HFC's. What rear are you running?

[whats77inaname]

Originally Posted by lsmkr01

Sounds good. Just got my MRF rear section put on and it sounds very aggressive with TP's. Now i'm itching to see what the whole system sounds like in person. It has no rasp with stock x-pipe w/ TPs so yours should have a similar affect with the HFC's. What rear are you running?

The no-drone rear, UUC Corsa.

[jagman]

That's funny. I asked Malek about this combo about 2 months ago. I have an Akra slip on and stock x-pipe and I told him I wanted the Velaforza but was considering adding hi flow cats and considering the switch to the UUC Corsa! He said he hadn't heard the Velaforza with the Corsa but that each part on their own sound dramatic and induce emotions! I'm very eager to read your impressions!

[jagman]

How is the project coming along?

[whats77inaname]

Originally Posted by jagman

How is the project coming along?

Nicely. Just waiting on my welder to get a little free time so he can finish up.