fabspeed cat x pipe res. The best ?

[mvagusta]

I've read all post's on cat with x pipe and res. I've noticed that this is the only one that throws no cels and with the stock muffler has no drone. Also perfect fitment. Riss had problems and AA with cels and Ie with fitment and rpi to loud..We should have a vote or discussion on this. The reason is I bet a lot of people do not want a tune and a lot don't want to change the nice exhaust sound from stock. Also fabspeed with cat and res no tune is pushing 25hp which is better then the rest. Correct me if I'm wrong. Any elaboration would be suffice.

[M3ltdown]

From my research... Fabspeed does have the best HFCs and xpipe. I'm just waiting on more funds to buy one.

[powertrip]

Originally Posted by darwin316

From my research... Fabspeed does have the best HFCs and xpipe. I'm just waiting on more funds to buy one.

Fabspeed certainly doesn't have the best "X" design; I'd give that award to Gintani or Riss which put there X's as far forward as possible.

[J08M3]

Originally Posted by powertrip

Fabspeed certainly doesn't have the best "X" design; I'd give that award to Gintani or Riss which put there X's as far forward as possible.

Except on one's shown any proof of this, and unless the same car is run with all setups on the same dyno showing a couple HP difference between them is meaningless.

[mvagusta]

riss has a problem with fitment and vendors are thinking of removing from shelves because of fitment and less hp then fabspeed so how does riss have a better X pipe and gintani has no reputation compared to fabspeed. Also I never heard of anyone gettin a gintani with the cat and res. Also are thay giving cels codes and ses? Just playing devils advocate. More stats needed to verify gintani and reviews. AA was a smash when thay came out. But thay cel all the time and the price was unbelievable. Anyone else?

[powertrip]

Originally Posted by J08M3

Except on one's shown any proof of this, and unless the same car is run with all setups on the same dyno showing a couple HP difference between them is meaningless.

Gintani is the only x-pipe that I've seen that puts down 30hp+ w/o a tune. I witnessed the dyno runs myself, so I'm pretty comfortable in saying that they have the best designed x-pipe. Also, one of the tuners over at Powerchip (Jeremy) told me that out of all the M3's that he has tuned that Gintani equipped cars make more power. I don't run their x-pipe, so I couldn't care less, but IMO they are on top in the power game. Only problem with their design is the CEL/SES light, but I hear that Alex is working on a solution.

[mvagusta]

That is it cels/ses. The power gains means nothing if the car needs to be serviced to remove codes. For 5 hp more it is not worth it. Fabspeed by a nose... I don't own any of products.

[J08M3]

Originally Posted by powertrip

Gintani is the only x-pipe that I've seen that puts down 30hp+ w/o a tune. I witnessed the dyno runs myself, so I'm pretty comfortable in saying that they have the best designed x-pipe. Also, one of the tuners over at Powerchip (Jeremy) told me that out of all the M3's that he has tuned that Gintani equipped cars make more power. I don't run their x-pipe, so I couldn't care less, but IMO they are on top in the power game. Only problem with their design is the CEL/SES light, but I hear that Alex is working on a solution.

There's no way moving the x a little more forward is giving your 10 - 15 HP more than the competitors. Did the car they tested have rear section also?

[powertrip]

Attached are some pictures that give you an idea of where the x-section is actually located. Note how the Riss is pushed forward? It also has very shallow angles going into the X which aides flow and increases exhaust gas velocity.

[powertrip]

Originally Posted by J08M3

There's no way moving the x a little more forward is giving your 10 - 15 HP more than the competitors. Did the car they tested have rear section also?

Yes, it was running the Gintani rear section. I personally wouldn't have believed the numbers had I not been there .

[mvagusta]

Are the cats the same as fabspeed? Why are thay throwing cel/ses code's then? Is it because of the x pipe being further down?

[Lemans_Blue_M]

Originally Posted by powertrip

Attached are some pictures that give you an idea of where the x-section is actually located. Note how the Riss is pushed forward? It also has very shallow angles going into the X which aides flow and increases exhaust gas velocity.

Excellent point.

[J08M3]

Originally Posted by powertrip

Yes, it was running the Gintani rear section. I personally wouldn't have believed the numbers had I not been there .

Then you can't really compare x-pipe sections if you're changing rear sections at the same time.

[powertrip]

Originally Posted by J08M3

Then you can't really compare x-pipe sections if you're changing rear sections at the same time.

I had the Fabspeed on my car at the time with the Gintani axle-back...so yeah .

[Lemans_Blue_M]

Originally Posted by mvagusta

Are the cats the same as fabspeed? Why are thay throwing cel/ses code's then? Is it because of the x pipe being further down?

That depends, it could be something simple like an exhaust gas leak at one or both connecting flanges on the mid pipe.

Engine codes are thrown for a variety of reasons, and the catalytic converters are not the only thing that can trigger a fault...

Nearly 100% of the time, I hear someone mention a SES/CEL code being thrown....but they never go on to explain which fault code the ECU is identifying. There are hundreds of engine fault codes in the BMW master code books.

It would really help, if the guys who see these codes would publish exactly which ones are being thrown each time. That would really help out the rest of us who are considering this upgrade.

Pipe diameter and the angle of the bends will have a huge impact on the shape of the powerband. This is rarely discussed on these boards. All the 'X' pipes are using a slightly different methodology. (type of cats, resonators, piping O.D., wall thickness, bend radius, and shape of the X crossover section)

All of these little differences add up. It's all about finding that perfect balance between velocity (flow), and back pressure. Too much of one without the other...and you're power output is going to suffer.

[Noodlefoxes]

Originally Posted by Lemans_Blue_M

That depends, it could be something simple like an exhaust gas leak at one or both connecting flanges on the mid pipe.

Engine codes are thrown for a variety of reasons, and the catalytic converters are not the only thing that can trigger a fault...

Nearly 100% of the time, I hear someone mention a SES/CEL code being thrown....but they never go on to explain which fault code the ECU is identifying. There are hundreds of engine fault codes in the BMW master code books.

It would really help, if the guys who see these codes would publish exactly which ones are being thrown each time. That would really help out the rest of us who are considering this upgrade.

Pipe diameter and the angle of the bends will have a huge impact on the shape of the powerband. This is rarely discussed on these boards. All the 'X' pipes are using a slightly different methodology. (type of cats, resonators, piping O.D., wall thickness, bend radius, and shape of the X crossover section)

All of these little differences add up. It's all about finding that perfect balance between velocity (flow), and back pressure. Too much of one without the other...and you're power output is going to suffer.

Also an excellent point

[TOOMANYCARS]

I'd used Fabspeed's products on my Cayenne S back then, their fit and finish were top notch, and that's why I'm using their setup for my M3 again. Just waiting for the UPS guy to drop them off at my house.

[rod1]

I believe we should make a sticky thread which compares x-pipes like the exhaust comparo which was made earlier this week. We need pics, prices, warranties, and independent dyno's.

Anyone actually dyno'd their riss racing x-pipe yet? Their price seems to be the best by a long shot but some are complaining of drone because the lack of any resonators. Also there's the SES issue.


On a side note, no aftermarket X-pipe with HFC's for any car should cost $2500. That is just a rip off.

[mvagusta]

with all the cat and xpipe and res system the gintani is the best producing power. Why can't thay fix the codes? Dinan just came out with a 2900 system with tune and four resonators that is not loud and their numbers are i think 25hp. But I wonder if you look at there system and see if the power is throw the entire rpm band it would make it a better compared to the other's. So if we can get dyno's of all the others we can see if dinan makes 25 one place and the other ones make less it would be helpful i picking a system..

[BimmerRob08]

I'd like to know which is more prone to throug a CEL. Encore X-pipe or the Fabspeed? I'm looking at those two.

[stylinexpat]

Originally Posted by rod1

I believe we should make a sticky thread which compares x-pipes like the exhaust comparo which was made earlier this week. We need pics, prices, warranties, and independent dyno's.

Anyone actually dyno'd their riss racing x-pipe yet? Their price seems to be the best by a long shot but some are complaining of drone because the lack of any resonators. Also there's the SES issue.


On a side note, no aftermarket X-pipe with HFC's for any car should cost $2500. That is just a rip off.

I agree..

[stylinexpat]

Originally Posted by mvagusta

with all the cat and xpipe and res system the gintani is the best producing power. Why can't thay fix the codes? Dinan just came out with a 2900 system with tune and four resonators that is not loud and their numbers are i think 25hp. But I wonder if you look at there system and see if the power is throw the entire rpm band it would make it a better compared to the other's. So if we can get dyno's of all the others we can see if dinan makes 25 one place and the other ones make less it would be helpful i picking a system..

25 HP with an ECU tune for $2900+ is not good.