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      05-13-2020, 03:03 PM   #1
mediax
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Down Pipe Advice

Hi guys I have a 2015 M5 F10 LCI with competition package and Akropovic Exhaust System.

I recently did a stage 1 tune thru DME which I love... got more power and a sick crackle.

I'm looking to install catless downpipes .. any suggestions that will bolt on with no headaches of moving o2 sensors etc

I was recommended fabworx but can't get delivery to Australia.

Looking for more noise ... suggestions please
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      05-14-2020, 05:07 AM   #2
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i have AMS catless dp and its good
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      05-14-2020, 06:46 AM   #3
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Ess from southern bm
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      05-14-2020, 08:14 AM   #4
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The car already has downpipe just smash the cats out.
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      05-14-2020, 08:30 AM   #5
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Quote:
Originally Posted by Chaman View Post
The car already has downpipe just smash the cats out.
Can that be done? Like a muffler place would do that?
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      05-14-2020, 08:40 AM   #6
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Quote:
Originally Posted by Mr. M6 View Post
i have AMS catless dp and its good
I've researched and a lot recommended AMS but I was told you have to move the o2 sensor is that right?
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      05-14-2020, 08:40 AM   #7
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I wouldn't recommend de-catting your oem downpipes. Mainly because if you need to go back to stage 1/no tune, it's hard to get OEM downpipes. Keep them just the way they are.

I currently have Fabworx on my car. I also had AMS Catless downpipes as well. Maybe they'll ship to you?
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      05-14-2020, 09:00 AM   #8
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Quote:
Originally Posted by Ickdeep View Post
I wouldn't recommend de-catting your oem downpipes. Mainly because if you need to go back to stage 1/no tune, it's hard to get OEM downpipes. Keep them just the way they are.

I currently have Fabworx on my car. I also had AMS Catless downpipes as well. Maybe they'll ship to you?
Thanks for that makes sense .. gonna see if I can get fabworx it's ship .. are they straight forward to install?
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      05-14-2020, 10:19 AM   #9
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Quote:
Originally Posted by mediax View Post
Quote:
Originally Posted by Ickdeep View Post
I wouldn't recommend de-catting your oem downpipes. Mainly because if you need to go back to stage 1/no tune, it's hard to get OEM downpipes. Keep them just the way they are.

I currently have Fabworx on my car. I also had AMS Catless downpipes as well. Maybe they'll ship to you?
Thanks for that makes sense .. gonna see if I can get fabworx it's ship .. are they straight forward to install?
I believe so but I ended taking it to a local shop to get them installed. I think there is a few install guides on here as well.
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      05-15-2020, 11:12 AM   #10
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We deliver to Australia and offer different brands including AMS
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      05-16-2020, 03:45 PM   #11
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I have fabworx dps and it sounds nasty!
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      05-17-2020, 02:54 AM   #12
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Quote:
Originally Posted by mediax View Post
I've researched and a lot recommended AMS but I was told you have to move the o2 sensor is that right?
nop, perfect fitting, best quality DP with 3.5 inch inlet
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      05-17-2020, 09:19 AM   #13
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Quote:
Originally Posted by DouglasNgo View Post
I have fabworx dps and it sounds nasty!
Nice
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      05-24-2020, 04:24 PM   #14
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Fabworx DP sale $739.95 (Retail $995)

Anyone know if thereís been recent sale prices for Fabworx DPs below $739.95?

https://www.ebay.com/itm/FABWORX-CAT...-/123729755648

When I pull the trigger on DPs, I will likely go with 200 cell catted down so the smell inside and outside the vehicle is not too strong.
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Last edited by 1320racer; 06-23-2020 at 07:33 PM.. Reason: Added another DP source
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      05-25-2020, 07:43 AM   #15
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Quote:
Originally Posted by Ickdeep View Post
I wouldn't recommend de-catting your oem downpipes. Mainly because if you need to go back to stage 1/no tune, it's hard to get OEM downpipes. Keep them just the way they are.

I currently have Fabworx on my car. I also had AMS Catless downpipes as well. Maybe they'll ship to you?
You can still run a stock map or stage 1 map with no cats.

A guy would just need to have the cat not ready error coded out.

Thereís no Point in spending 750 dollars on some pipes the car already has, but thatís just my opinion
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      05-25-2020, 09:17 AM   #16
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Quote:
Originally Posted by Chaman View Post
Quote:
Originally Posted by Ickdeep View Post
I wouldn't recommend de-catting your oem downpipes. Mainly because if you need to go back to stage 1/no tune, it's hard to get OEM downpipes. Keep them just the way they are.

I currently have Fabworx on my car. I also had AMS Catless downpipes as well. Maybe they'll ship to you?
You can still run a stock map or stage 1 map with no cats.

A guy would just need to have the cat not ready error coded out.

There’s no Point in spending 750 dollars on some pipes the car already has, but that’s just my opinion
Interesting.. that does make sense
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      05-25-2020, 10:23 AM   #17
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Quote:
Originally Posted by Chaman View Post
Quote:
Originally Posted by Ickdeep View Post
I wouldn't recommend de-catting your oem downpipes. Mainly because if you need to go back to stage 1/no tune, it's hard to get OEM downpipes. Keep them just the way they are.

I currently have Fabworx on my car. I also had AMS Catless downpipes as well. Maybe they'll ship to you?
You can still run a stock map or stage 1 map with no cats.

A guy would just need to have the cat not ready error coded out.

There’s no Point in spending 750 dollars on some pipes the car already has, but that’s just my opinion
Yeah but it's not recommended to run stock map or stage 1 with Catless downpipes. You're causing extra stress with the car's mods and tune not being in sync. Also it's way easier to get Catless downpipes than being OEM downpipes.

Ps check the user classified thread for Catless downpipes for sale.
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      05-26-2020, 12:27 AM   #18
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Quote:
Originally Posted by Ickdeep View Post
Quote:
Originally Posted by Chaman View Post
Quote:
Originally Posted by Ickdeep View Post
I wouldn't recommend de-catting your oem downpipes. Mainly because if you need to go back to stage 1/no tune, it's hard to get OEM downpipes. Keep them just the way they are.

I currently have Fabworx on my car. I also had AMS Catless downpipes as well. Maybe they'll ship to you?
You can still run a stock map or stage 1 map with no cats.

A guy would just need to have the cat not ready error coded out.

There's no Point in spending 750 dollars on some pipes the car already has, but that's just my opinion
Yeah but it's not recommended to run stock map or stage 1 with Catless downpipes. You're causing extra stress with the car's mods and tune not being in sync. Also it's way easier to get Catless downpipes than being OEM downpipes.

Ps check the user classified thread for Catless downpipes for sale.
Thank you going to go the fabworx and look at stage 2 tune
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      05-28-2020, 08:16 PM   #19
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Glad the OP found something that works for them
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      06-03-2020, 08:58 AM   #20
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[QUOTE=Ickdeep;26222083]Yeah but it's not recommended to run stock map or stage 1 with Catless downpipes. You're causing extra stress with the car's mods and tune not being in sync. Also it's way easier to get Catless downpipes than being OEM downpipes.

This is such an innaccurate statement... A car is less stressed with catless DPs and most tuners can map out the CEL too. Freeing up more HP with less strain on the engine and turbos as it can all breathe easier.
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      06-03-2020, 03:28 PM   #21
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[QUOTE=F10CPROG;26262060]
Quote:
Originally Posted by Ickdeep View Post
Yeah but it's not recommended to run stock map or stage 1 with Catless downpipes. You're causing extra stress with the car's mods and tune not being in sync. Also it's way easier to get Catless downpipes than being OEM downpipes.

This is such an innaccurate statement... A car is less stressed with catless DPs and most tuners can map out the CEL too. Freeing up more HP with less strain on the engine and turbos as it can all breathe easier.
If I can get rid of CEL with tune does that mean I can pass emission test with catless DP since it's all OBD testing now?
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      06-03-2020, 03:49 PM   #22
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[QUOTE=jacie6056;26263791]
Quote:
Originally Posted by F10CPROG View Post
Quote:
Originally Posted by Ickdeep View Post
Yeah but it's not recommended to run stock map or stage 1 with Catless downpipes. You're causing extra stress with the car's mods and tune not being in sync. Also it's way easier to get Catless downpipes than being OEM downpipes.

This is such an innaccurate statement... A car is less stressed with catless DPs and most tuners can map out the CEL too. Freeing up more HP with less strain on the engine and turbos as it can all breathe easier.
If I can get rid of CEL with tune does that mean I can pass emission test with catless DP since it's all OBD testing now?
No you can't pass emissions test because what tuners do is turn off the monitor that turns on your CEL. Emissions test look for monitors to report back
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