[Fabspeed Motorsport]

Originally Posted by BruceM

Was that start a cold start? This isn't bad at all, really. And it's practically mellow from the cockpit

That was a cold start in the beginning of the video. It does increase the snaps, crackles, and pops a little but not dramatically.

[Badge22]

Hi All,

Has anyone had any issues with passing inspection with muffler bypass? Both sound and emissions?

Best,

Rob

[Fabspeed Motorsport]

Originally Posted by Badge22

Hi All,

Has anyone had any issues with passing inspection with muffler bypass? Both sound and emissions?

Best,

Rob

Rob,

I haven't heard anyone having issues with inspection/emissions. I have an M235i myself with our Sport Cat Downpipe and Muffler Bypass and I didn't run into any issues as well.

[pmilani]

After installing the downpipe do you need a re-map?

[No Boost]

Originally Posted by pmilani

After installing the downpipe do you need a re-map?

No, install and drive

[Fabspeed Motorsport]

Originally Posted by pmilani

After installing the downpipe do you need a re-map?

Originally Posted by Stage IV

No, install and drive

Correct! You can simply install the downpipe and go have fun!

[Aloha Joe]

Regarding just installing of the sport cat downpipe, for those who have it installed. What have your BMW service department's said in regards to the 3 year service/warranty, when seeing it installed?

[BruceM]

Originally Posted by Aloha Joe

Regarding just installing of the sport cat downpipe, for those who have it installed. What have your BMW service department's said in regards to the 3 year service/warranty, when seeing it installed?

Not a thing. And they have definitely seen it.

[GMWNashville]

Anyone have this installed with a Dinan stage 4 kit?

[JimmyS]

Originally Posted by GMWNashville

Anyone have this installed with a Dinan stage 4 kit?

+1, would like to hear some feedback.

Looking to get the Dinan upgrades (stage 4, turbo, intercooler) and the Fabspeed downpipe done. Just need to find a good shop in Chicago to get it done.

[No Boost]

Originally Posted by GMWNashville

Anyone have this installed with a Dinan stage 4 kit?

Originally Posted by JimmyS

+1, would like to hear some feedback.

Looking to get the Dinan upgrades (stage 4, turbo, intercooler) and the Fabspeed downpipe done. Just need to find a good shop in Chicago to get it done.

Yeah, it's pretty bad ass

[BruceM]

Originally Posted by Stage IV

Yeah, it's pretty bad ass

Yes it is. Although I don't have the exhaust. Just the rest of the P2 package plus the DP....

[GMWNashville]

We are currently running into some high rpm misfires with a Dinan stage 4 and they are currently thinking it's downpipe related. I'll be swapping it out Monday and reporting back...but I'm doubting it's related.

[BruceM]

Originally Posted by GMWNashville

We are currently running into some high rpm misfires with a Dinan stage 4 and they are currently thinking it's downpipe related. I'll be swapping it out Monday and reporting back...but I'm doubting it's related.

That's funny. They knew I was running a downpipe at the time I got the Stage 4 P2 installed, and I got no such warning from them. Nor have I had any detectable misfires, ever.

[Fabspeed Motorsport]

Originally Posted by GMWNashville

Anyone have this installed with a Dinan stage 4 kit?

Originally Posted by JimmyS

+1, would like to hear some feedback.

Looking to get the Dinan upgrades (stage 4, turbo, intercooler) and the Fabspeed downpipe done. Just need to find a good shop in Chicago to get it done.

Here is a video of a customers M2 with the Dinan big turbo kit running along with our Sport Cat Downpipe as well! Killer combo!

[GMWNashville]

Originally Posted by BruceM

That's funny. They knew I was running a downpipe at the time I got the Stage 4 P2 installed, and I got no such warning from them. Nor have I had any detectable misfires, ever.

Do you spend a decent amount of time WOT over 6500 rpm? This one will do it fairly easily there.

[mrcheezle19]

[QUOTE=Fabspeed Motorsport;22206039]Here is a video of a customers M2 with the Dinan big turbo kit running along with our Sport Cat Downpipe as well! Killer combo!

What were the numbers???

[Fabspeed Motorsport]

[QUOTE=mrcheezle19;22206529]

Originally Posted by Fabspeed Motorsport

Here is a video of a customers M2 with the Dinan big turbo kit running along with our Sport Cat Downpipe as well! Killer combo!

What were the numbers???

Let me see if I can dig up his dyno sheets!

[Fabspeed Motorsport]

See below!

[IMG][/IMG]

[BruceM]

Originally Posted by GMWNashville

Do you spend a decent amount of time WOT over 6500 rpm? This one will do it fairly easily there.

On the track, yes. Otherwise, no--maybe a few times/week. At no time have I experienced misfires. And I'm actually interested to hear the theory or theories that would explain how a catted downpipe would cause misfires? Have you got good A/F numbers up and down the band? Is it running too rich up top with the catted DP?

[OSA_BMW]

Any reason not to install my Fabspeed Sport Cat immediately when I pick up my car?

Should I wait until after 1200 mile service? Besides not really being able to test the car before the service I can't think of any other reason.

[iQuiet]

Misfires are normally due to coil packs or spark plugs.. So that's probably the problem!