[ICantDrive4Sht]

Originally Posted by DieGrüneHölle

I'm guessing everything after the downpipes will be unique. Aftermarket exhausts will be months out. Akrapovic are usually one of the first to release a system.

Maybe because, atleast in M2, the M performance exhaust is made by akra

[MR.]

Originally Posted by 6erLover

Maybe because, at least in M2, the M performance exhaust is made by akra

It is not made by Akra! Akra does not make any OEM products. They only make products that have a Akrapovic logo on it and nothing else.

M2 M Performance exhaust was made by a UK company.

MR

[Bee Pee]

Originally Posted by MR.

It is not made by Akra! Akra does not make any OEM products. They only make products that have a Akrapovic logo on it and nothing else.

M2 M Performance exhaust was made by a UK company.

MR

MPE OE supplier to BMW - Red Arch Manufacturing Ltd based in Daventry in the Midlands, UK.

https://www.redarcheng.co.uk/news/bm...duction-ramps/

https://www.redarcheng.co.uk/news/ra...gp-safety-car/

[FSociety]

I highly doubt downpipes will be a restriction if its anything like the M3/M4.

[dmk08]

Originally Posted by hellrotm

I'm fond of the Active Autowerke downpipes. They have flex sections and are a reasonable price.

I had ER and then Eisenmann (with flex) on my F80. The ER fitment caused rattles. The Eisenmann fit better than the ER but they cost $1400? No rattles with these.

I had VRSF on my M4 and they fit as well or better than the Eisenmann. $450 no rattles. Best bang for the buck IMO.

Another thing to keep in mind is DP diameter. The sound from a full 3” vs a tapered DP will change. The non tapered will keep a deeper tone.

[FSU_Logan]

What's the typical response from a dealer if you bring the car in with catless DP's?

[bwhouse]

Originally Posted by FSU_Logan

What's the typical response from a dealer if you bring the car in with catless DP's?

My understanding is you need a tune to properly get rid of the CEL, so I would guess most dealers are not too friendly.

[FSU_Logan]

Originally Posted by bwhouse

My understanding is you need a tune to properly get rid of the CEL, so I would guess most dealers are not too friendly.

Well you could run a defouler but I meant how they would react to a tuned car. I know for most other cars dealers do not care unless it is blatantly obvious it caused the damage.

[Kuervers]

Originally Posted by bwhouse

My understanding is you need a tune to properly get rid of the CEL, so I would guess most dealers are not too friendly.

BMS can flap will get rid of cel and not void warranty. My m2c I'll be getting downpipes this winter for sure. Won't get big gains without a tune but warranty I'll still be intact

[bwhouse]

Originally Posted by Kuervers

BMS can flap will get rid of cel and not void warranty. My m2c I'll be getting downpipes this winter for sure. Won't get big gains without a tune but warranty I'll still be intact

My 2 cents, they can still void parts of your warranty if they want as you have modified the car. It is probably unlikely, but if a turbo blows and they want to be a pain and say it is linked to the downpipe they could.

They way I think about it is if you want to mod you need to be whiling to accept that you could loose warranty.

[Sebastian212az]

Originally Posted by bm3nyc

CTS Turbo Downpipes in all my customers cars!
We have 2 new locals with M2C orders and they already ordered CTS Turbo Charge-Pipe / Downpipes / Intakes and pending Mid-Pipe and their Bootmod3 License + BM3 Agent Bundle too

Do they use the same downpipes from m3/m4?

[Sebastian212az]

Originally Posted by bm3nyc

BMW Cost-Saver I'm sure they will and we learned this from M2/M235/335/435 as well.

Did they order the ones from the f8X?

[FSU_Logan]

Originally Posted by bm3nyc

BMW Cost-Saver I'm sure they will and we learned this from M2/M235/335/435 as well.

How does the S55 respond to new intakes?

I see a flash tune on E85 runs ~ 550whp, but is that FBO?

[FSU_Logan]

Originally Posted by bm3nyc

At this moment yes


S55 can hit 550whp on DP + Full E85 tune only, I've seen even 580-600whp on just Full E85 + DP.
Local member is hitting 620whp 650wtq on stock turbo/stock intake, CTS Turbo DP, Straightpipe Active or Einsenman full exhaust (have to double check), EOS Heatexchanger and Upgraded Top Mount Intercooler, E40 in tank and 100% Meth Injection.
Now for Upgraded Turbos most people seem to go DP/Midpipe (proper one to remove all restriction in primary/secondary).
Intake barely makes a difference IMO but a lot of customers go with it for looks and sound.


bms products do not clear CEL in the USA only outside and for that reason might as well go with the best tune in the market "Bootmod3" that comes with Free OEM Calibration Maps such as "CS, GTS, CSL" + your choice of OTS tune map.

There is E85 everywhere near me, tests typically 75-88% (I have a full racecar that only runs E85 so I test it regularly). I'm assuming they just tune for E70 and send it.

Only thing holding me back at all is the longevity of the engine. I may give myself a few thousand break-in miles to see how its holding up.

[FSU_Logan]

Originally Posted by bm3nyc

I would definitely give the engine proper break-in and after that a good 3-5k miles of variation and hard miles.

Absolutely brother, thanks.

[SEAT TIME RULES]

Originally Posted by FSU_Logan

There is E85 everywhere near me, tests typically 75-88% (I have a full racecar that only runs E85 so I test it regularly). I'm assuming they just tune for E70 and send it.

Only thing holding me back at all is the longevity of the engine. I may give myself a few thousand break-in miles to see how its holding up.

Have you tried running Ignite E85 Race Gas yet? Love it in my flex fuel tuned EVO running 33lbs of boost... Works out to $4-$4.50 per gallon if I remember the last barrel...

http://igniteracingfuel.com/E-85.html


Up here in New England pump E85 Avg's about E70....and we are very limited to where we can buy it as well. So I was getting 55 Gal Drums dropped ship to my friends garage.

[FSU_Logan]

Originally Posted by SEAT TIME RULES

Have you tried running Ignite E85 Race Gas yet? Love it in my flex fuel tuned EVO running 33lbs of boost... Works out to $4-$4.50 per gallon if I remember the last barrel...

http://igniteracingfuel.com/E-85.html


Up here in New England pump E85 Avg's about E70....and we are very limited to where we can buy it as well. So I was getting 55 Gal Drums dropped ship to my friends garage.

No, it's unnecessary for me as I have pump e85 all over the place. The difference from e70 to e85 is marginal.

[DieGrüneHölle]

Originally Posted by FSU_Logan

There is E85 everywhere near me, tests typically 75-88% (I have a full racecar that only runs E85 so I test it regularly). I'm assuming they just tune for E70 and send it.

Only thing holding me back at all is the longevity of the engine. I may give myself a few thousand break-in miles to see how its holding up.

Your tuner will tune for whatever blend you desire.

What is your other racecar running full E85?

[FSU_Logan]

Originally Posted by DieGrüneHölle

Your tuner will tune for whatever blend you desire.

What is your other racecar running full E85?

Turbo 5.0, ~ 1000whp. Just got my 15s mounted. I'd like to say it'll hit 8s now.

[FSociety]

Originally Posted by FSU_Logan

No, it's unnecessary for me as I have pump e85 all over the place. The difference from e70 to e85 is marginal.

Lucky! where in FL

[FSU_Logan]

Originally Posted by FSociety

Lucky! where in FL

Tampa. If I drive 5 minutes out of the way a Thorntons has 90%...always.

[mike@x-ph.com]

VRSF s55 Downpipes