Questions about Eisenmann Race(X pipe,connecting pipes)

[Zzhou]

So, Im thinking about to put on Eisenmann Race when I get my 2012 m3. I have some questions about it. I did lot just wanna be sure and clear about these questions. any input is helpful, and thank you~

#1 should I get it with Eisenmann Connecting Pipes or not?
----if with Connecting Pipes, will it fit if I add AA Signature X Pipe & Connecting Pipes Later?

#2 Is it ture that Eisenmann Race with X pipe(with or without cats) are too loud for drving around town?

#3 Both Eisenmann Race and Sport have the same performance gain right?

#4 what are the difference between with cats and without.

[markjord]

I only have the Race with the rest of the exhaust being standard. So in this case the answer to q1 is yes, you need the connecting pipes in order to avoid any cutting and to make it easy to put the oem back on when you sell. The Race sounds terrific. Oh and you won't notice any HP gain with an axle back. Can't comment on the rest.

[Zzhou]

Originally Posted by markjord

I only have the Race with the rest of the exhaust being standard. So in this case the answer to q1 is yes, you need the connecting pipes in order to avoid any cutting and to make it easy to put the oem back on when you sell. The Race sounds terrific. Oh and you won't notice any HP gain with an axle back. Can't comment on the rest.

Thanks, but I think they claim about 15hp gains? U just can't tell the difference?

[KennyPowers]

Axel backs produce basically zero power.

The power gains from exhaust systems are from removing the primary cats

[1sikbmr]

Originally Posted by zhouzitao

So, Im thinking about to put on Eisenmann Race when I get my 2012 m3. I have some questions about it. I did lot just wanna be sure and clear about these questions. any input is helpful, and thank you~

#1 should I get it with Eisenmann Connecting Pipes or not?
----if with Connecting Pipes, will it fit if I add AA Signature X Pipe & Connecting Pipes Later?

Without the connecting pipes you are left with cutting the ones off your factory exhaust. All connecting pipes were made to pair with OEM xpipe(akra aside) so yes it will fit with AA xpipe as they have stayed with the same fitment as oem.

#2 Is it ture that Eisenmann Race with X pipe(with or without cats) are too loud for drving around town?

Loudness is subjective. Some say the OEM exhaust mod is loud and others say the gintani race is quiet. I personally only heard the eisenmann race alone(not paired with anything) and think it sounds good but not loud.

#3 Both Eisenmann Race and Sport have the same performance gain right?

Should have the same performance gain(if any) just the difference in volume.

#4 what are the difference between with cats and without.

with cats no smell without cats(assuming your deleting the primaries) gains and smell.

answers in red

[THE TECH]

X-pipe is mandatory for gains in regards to the exhaust.

[Zzhou]

thanks guys. all great input, I will think about wt exhaust to put on now. if there is no hp gain from only the muffer. why they say it does. lol

[Zzhou]

Originally Posted by shift@red

Because people who arent into cars will read it and believe it.

If the race really drone crazy, im thinking just go with Ak slip-on first,and add the Ak x pipe when I want more HP.

[Bel-Tirid]

I have the same problem, i have the E race and now searching for the x pipe.

Do u have any video of E race with x pipe, damn i cant give 2k for something too loud.

Is it louder at high rpm, because that is ok, dont want to be louder at 2-3k

thx guys

[GTM_Challenge]

The best combination for sound and power for the Eisenmann seems to be the Eisenmann Sport, with Challenge Race x pipe. Makes good power, sounds good at WOT, and doesnt drone like the Race Eisenmann can sometimes.

Heard this all day yesterday at the track

[Zzhou]

Originally Posted by GTM_Challenge

The best combination for sound and power for the Eisenmann seems to be the Eisenmann Sport, with Challenge Race x pipe. Makes good power, sounds good at WOT, and doesnt drone like the Race Eisenmann can sometimes.

Heard this all day yesterday at the track

How is AA sound compare to eisenmann race?

[GTM_Challenge]

I havent heard the AA in person ever. I prefer the quality level on the Eisenmann over it though from seeing how they are made.