Is it wrong to run a FMIC, CP, and DP on stock tune?

gbux · 07-30-2018, 09:59 PM

So like the title says. How bad is it to run a FMIC CP and DP all on the stock tune? Im trying to space out the costs a little bit. Will I throw CEL, perhaps drivetrain malfunction or will things be hunky doory until i throw a boot mod3 on there?

edit: i have a dinan sport tuner on it too running +3 psi for what its worth (ill take it off before the tune)

the dope steez · 07-30-2018, 10:02 PM

Quote:

Originally Posted by gbux

So like the title says. Im trying to space out the costs a little bit. How bad is it to run a FMIC CP and DP all on the stock tune? Will I throw CEL, perhaps drivetrain malfunction or will things be hunky doory until i throw a boot mod3 on there?

You'll get a bit of added power and throttle response for sure. Normally you'd be better off getting the tune and then the bolt-ons, but it's not going to hurt any going this route. You'll get a CEL from your downpipe for sure, if you're not too concerned about that then all good.

sspade · 07-30-2018, 10:44 PM

Im in a similar situation... no tune and running:

FMIC
CP/TP
DV+

Soon to be adding a DP. Having second thoughts about catless because I don't want to deal with the CEL. But then again, apparently even a HFC DP is prone to a CEL.

Have heard of a trick with a spark plug fouler to space out the o2 sensor but not sure if that is a realistic solution long term.

jv004 · 07-31-2018, 12:11 AM

Won't hurt as it's just letting the car breath better. Currently have FBO and running stock atm. Will be adding a tune soon once I have a couple things settle down but haven't had issues running stock with the upgrades.

dr.roro · 07-31-2018, 01:56 PM

Only "issue" is that you will undoubtedly have a CEL from the DP (unless you are getting a Fabspeed Sport Cat), but even that won't hurt the car. Don't expect any noticeable gains, however, until you flash a tune.

jgoens · 07-31-2018, 02:09 PM

Quote:

Originally Posted by dr.roro

Only "issue" is that you will undoubtedly have a CEL from the DP (unless you are getting a Fabspeed Sport Cat), but even that won't hurt the car. Don't expect any noticeable gains, however, until you flash a tune.

This. It's always good to replace the CP as they break stock. DP will give you a better sound ( in my opinion). But as said, these mods will not give you much in the performance end without a tune.

dr.roro · 07-31-2018, 05:40 PM

I think the better option to stage the upgrades would be to do the FMIC, CP, and Stage 1 tune first, and then later down the line, upgrade DP and flash Stage 2 map.

XxThe_RemedyXx · 08-01-2018, 03:28 PM

Quote:

Originally Posted by dr.roro

I think the better option to stage the upgrades would be to do the FMIC, CP, and Stage 1 tune first, and then later down the line, upgrade DP and flash Stage 2 map.

This is exactly what I did. Debating on DP, leaning towards VRSF as I've heard good things.

louielouie · 08-02-2018, 12:58 AM

Quote:

Originally Posted by dr.roro

I think the better option to stage the upgrades would be to do the FMIC, CP, and Stage 1 tune first, and then later down the line, upgrade DP and flash Stage 2 map.

One thing to consider with this option is he'd be out another $100 to flash both maps which hurts his position of spacing out costs.

That's pretty much what I did though because I'm indecisive hahaha.

Bmwman325 · 08-02-2018, 10:09 AM

I recently installed FMIC, Charge pipe, Fabspeed catted downpipe, going to tune soon, I can certainly feel a performance increase once the downpipe was installed, definitely more low end torque, and the sound is awesome.

XutvJet · 08-02-2018, 10:20 AM

A catted DP without a tune is good for around 15whp and 20-30wtq across the powerband plus better throttle and turbo response.

mike@x-ph.com · 08-02-2018, 06:45 PM

Quote:

Originally Posted by XutvJet

A catted DP without a tune is good for around 15whp and 20-30wtq across the powerband plus better throttle and turbo response.

+1

gbux · 08-03-2018, 03:03 PM

So I did the FMIC, DP, and CP all in one go and then bumped my dinan sport tuner from sport+ to race, i believe in race its doing +4psi, certainly feels a bit ballsy-er I really should have tried out the car with the dinan in sport+ first to see if i really felt a difference

Im still debating an OTS tune from BM3 or going a custom tune from DME tuners here in northern jersey. Its 600 one way or 1700 the other. gotta weigh it and see if custom is worth it. Idk if im car savy enough to dig into the settings of BM3 and make sense of anything going wrong, 1700 is a lot but that seems like pay the professionals and be done with it could be worth it.

heres their website: http://dmetuning.com/

Tpriest7893 · 08-04-2018, 03:18 PM

I'm running VRSF DP catless, and love it! Best bang for buck. Got mine here on forum mad cheap.

Also, with my car I plan on having it for years. I'm going the route of doing Bolt ons then tune. Personally because if you tune you'll need to change charge pipe and all that and intercooler is deff good to have for better temps. That's why I'm choosing to do the tune last. I did the down-pipe first just for a little sound and I got it for 125 on here. Couldn't beat that

Just my 2 cents!

sspade · 08-04-2018, 03:22 PM

Quote:

Originally Posted by Tpriest7893

I'm running VRSF DP catless, and love it! Best bang for buck. Got mine here on forum mad cheap.

Also, with my car I plan on having it for years. I'm going the route of doing Bolt ons then tune. Personally because if you tune you'll need to change charge pipe and all that and intercooler is deff good to have for better temps. That's why I'm choosing to do the tune last. I did the down-pipe first just for a little sound and I got it for 125 on here. Couldn't beat that

Just my 2 cents!

Im also tuning last. Last item I need is a catless downpipe. Strongly considering Circuit Werks.

07-30-2018, 09:59 PM	#1
gbux Private 21 Rep 71 Posts Drives: 2018 M3 competition Join Date: Oct 2017 Location: New York iTrader: (0)	Is it wrong to run a FMIC, CP, and DP on stock tune? So like the title says. How bad is it to run a FMIC CP and DP all on the stock tune? Im trying to space out the costs a little bit. Will I throw CEL, perhaps drivetrain malfunction or will things be hunky doory until i throw a boot mod3 on there? edit: i have a dinan sport tuner on it too running +3 psi for what its worth (ill take it off before the tune) Last edited by gbux; 07-30-2018 at 10:01 PM.. Reason: forgotted facts
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07-30-2018, 10:44 PM	#3
sspade Major General 2471 Rep 5,460 Posts Drives: F30 Join Date: Oct 2017 Location: Stevenson, WA iTrader: (3) Garage List 2016 BMW 320i [7.87] 2014 BMW 328i [6.83]	Im in a similar situation... no tune and running: FMIC CP/TP DV+ Soon to be adding a DP. Having second thoughts about catless because I don't want to deal with the CEL. But then again, apparently even a HFC DP is prone to a CEL. Have heard of a trick with a spark plug fouler to space out the o2 sensor but not sure if that is a realistic solution long term.
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07-31-2018, 12:11 AM	#4
jv004 Captain 402 Rep 606 Posts Drives: X3M Comp Join Date: Apr 2013 Location: Northern California iTrader: (0)	Won't hurt as it's just letting the car breath better. Currently have FBO and running stock atm. Will be adding a tune soon once I have a couple things settle down but haven't had issues running stock with the upgrades.
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07-31-2018, 01:56 PM	#5
dr.roro Captain 197 Rep 832 Posts Drives: 2019 G01 X3 Join Date: Oct 2007 Location: MD iTrader: (2) Garage List 2015 BMW 435i Coupe [0.00] 2019 BMW X3 xDrive30i [0.00]	Only "issue" is that you will undoubtedly have a CEL from the DP (unless you are getting a Fabspeed Sport Cat), but even that won't hurt the car. Don't expect any noticeable gains, however, until you flash a tune.
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07-31-2018, 05:40 PM	#7
dr.roro Captain 197 Rep 832 Posts Drives: 2019 G01 X3 Join Date: Oct 2007 Location: MD iTrader: (2) Garage List 2015 BMW 435i Coupe [0.00] 2019 BMW X3 xDrive30i [0.00]	I think the better option to stage the upgrades would be to do the FMIC, CP, and Stage 1 tune first, and then later down the line, upgrade DP and flash Stage 2 map.
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08-02-2018, 10:09 AM	#10
Bmwman325 Private First Class 38 Rep 172 Posts Drives: 2015 MG CR 335 XI 6SP Join Date: May 2014 Location: Missouri iTrader: (0)	I recently installed FMIC, Charge pipe, Fabspeed catted downpipe, going to tune soon, I can certainly feel a performance increase once the downpipe was installed, definitely more low end torque, and the sound is awesome. __________________ Wagner Competition Intercooler, ER Chargepipe, Fabspeed Catted Downpipe, Bootmod3 OTS Stage 2 93 oct
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08-02-2018, 10:20 AM	#11
XutvJet Major General 5593 Rep 5,389 Posts Drives: 2011 Cayman Base, 2016 M235 Join Date: Mar 2016 Location: Kansas City iTrader: (-1)	A catted DP without a tune is good for around 15whp and 20-30wtq across the powerband plus better throttle and turbo response. __________________ The forest was shrinking, but the Trees kept voting for the Axe, for the Axe was clever and convinced the Trees that because his handle was made of wood, he was one of them.
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08-03-2018, 03:03 PM	#13
gbux Private 21 Rep 71 Posts Drives: 2018 M3 competition Join Date: Oct 2017 Location: New York iTrader: (0)	So I did the FMIC, DP, and CP all in one go and then bumped my dinan sport tuner from sport+ to race, i believe in race its doing +4psi, certainly feels a bit ballsy-er I really should have tried out the car with the dinan in sport+ first to see if i really felt a difference Im still debating an OTS tune from BM3 or going a custom tune from DME tuners here in northern jersey. Its 600 one way or 1700 the other. gotta weigh it and see if custom is worth it. Idk if im car savy enough to dig into the settings of BM3 and make sense of anything going wrong, 1700 is a lot but that seems like pay the professionals and be done with it could be worth it. heres their website: http://dmetuning.com/ Last edited by gbux; 08-03-2018 at 03:09 PM.. Reason: i wanted to clarify my statement and then additional thoughts and a website too
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08-04-2018, 03:18 PM	#14
Tpriest7893 Captain 232 Rep 841 Posts Drives: Bmw 335i f30 N55 ( sold) Join Date: Nov 2017 Location: Venice Florida iTrader: (0) Garage List [0.00] 2012 bmw 335 [0.00] 02 2002 m3 Vert [0.00]	I'm running VRSF DP catless, and love it! Best bang for buck. Got mine here on forum mad cheap. Also, with my car I plan on having it for years. I'm going the route of doing Bolt ons then tune. Personally because if you tune you'll need to change charge pipe and all that and intercooler is deff good to have for better temps. That's why I'm choosing to do the tune last. I did the down-pipe first just for a little sound and I got it for 125 on here. Couldn't beat that Just my 2 cents! __________________ 2012 bmw 335i sedan VRSF catless DP VRSF 5? HD IC Stock intake(had open before and was sick of noise) BMS CP 550i 351m rims with 275/245 set up. No tune as of yet.
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