[sspade]

Originally Posted by LordRuxpin

sspade You'd be running the stage 1 map until you put on your DP n FMIC

I already have FMIC installed... anyone ran map two with just an FMIC and no DP ?

[LordRuxpin]

Originally Posted by sspade

I already have FMIC installed... anyone ran map two with just an FMIC and no DP ?

I think you need the DP for the flow... I'll be running Stg 2 in about 2 weeks... DP n FMIC come in tomorrow and friday. Then getting the LPFP so I can run E30... however I'm curious to know if I need upgraded fuel lines too.. @BunkerJ what say you?

[allen841231]

I have the AA stage 2 tune with catless downpipe and full catback from AWE with quad tips, plus injen intake and this is what i make on my 320i

[rjd_F30]

Originally Posted by sspade

I already have FMIC installed... anyone ran map two with just an FMIC and no DP ?

You can't run Stage 2 without the DP. If you have the DP you can run it without the FMIC, but I recommend against it. The DP is required to decrease restrictiveness and allow a quicker, freer spool to keep up with the demands of the Stage 2 mapping. If you have a monetary reservation keeping you away from the DP, that's one thing, but I really don't think a catless DP is as big of a jump as a lot of people make it out to be. I already had the MPE installed, but the DP didn't make it that much louder. The only thing is it smells like a lawn mower from outside the car, no smell inside unless you're at a light with the windows down. And that can all be remedied by going high-flow catted.

[BunkerJ]

Originally Posted by LordRuxpin

I think you need the DP for the flow... I'll be running Stg 2 in about 2 weeks... DP n FMIC come in tomorrow and friday. Then getting the LPFP so I can run E30... however I'm curious to know if I need upgraded fuel lines too.. @BunkerJ what say you?

Nope. Just the LPFP. Bonus on the N26 for better fuel lines, too!

[sspade]

Originally Posted by allen841231

I have the AA stage 2 tune with catless downpipe and full catback from AWE with quad tips, plus injen intake and this is what i make on my 320i

AA Flash or Piggyback?

[brofessorpham]

Originally Posted by sspade

I already have FMIC installed... anyone ran map two with just an FMIC and no DP ?

You can run stage II with a DP, but no FMIC. I’m running stage 2 with catless but no FMIC. To say the least, I have been running it for almost a month with no problems to report in my data logs (fingers crossed). The FMIC serves the purpose of consistently giving you that added HP by keeping your IATs lower. So unless you plan on drag/track racing, it isn’t 100% necessary for a FMIC.

You can’t run stage II with FMIC, but no DP. Doing this will actually do more harm than good because you are adding significantly more back pressure into your engine with no free-flowing exhaust to compensate due to the increased boost levels.

[BunkerJ]

Originally Posted by brofessorpham

You can run stage II with a DP, but no FMIC. I’m running stage 2 with catless but no FMIC. To say the least, I have been running it for almost a month with no problems to report in my data logs (fingers crossed). The FMIC serves the purpose of consistently giving you that added HP by keeping your IATs lower. So unless you plan on drag/track racing, it isn’t 100% necessary for a FMIC.

You can’t run stage II with FMIC, but no DP. Doing this will actually do more harm than good because you are adding significantly more back pressure into your engine with no free-flowing exhaust to compensate due to the increased boost levels.

You're going to pull timing constantly without the FMIC and just hurt your performance.

[sspade]

Originally Posted by rjdnyy224

You can't run Stage 2 without the DP. If you have the DP you can run it without the FMIC, but I recommend against it. The DP is required to decrease restrictiveness and allow a quicker, freer spool to keep up with the demands of the Stage 2 mapping. If you have a monetary reservation keeping you away from the DP, that's one thing, but I really don't think a catless DP is as big of a jump as a lot of people make it out to be. I already had the MPE installed, but the DP didn't make it that much louder. The only thing is it smells like a lawn mower from outside the car, no smell inside unless you're at a light with the windows down. And that can all be remedied by going high-flow catted.

Understood... so let me ask you (and anyone else) this:

Is it bad to run a FMIC, DV+ and Catless DP with no tune at all?

[BunkerJ]

Originally Posted by sspade

Understood... so let me ask you (and anyone else) this:

Is it bad to run a FMIC, DV+ and Catless DP with no tune at all?

Aside from the CEL, no. FMIC only hurts the car (lag wise) if it's much bigger and the car doesn't compensate for it, inducing more turbo lag.

[sspade]

Originally Posted by BunkerJ

Aside from the CEL, no. FMIC only hurts the car (lag wise) if it's much bigger and the car doesn't compensate for it, inducing more turbo lag.

Got it. Waiting for the next eBay special to appear and definitely grabbing a catless DP. Not gunna lie, Im going to go ahead a take a chance on the Circuit Werks unit. Apparently there are members who have ran it for many many miles with no issues. I have a hard time justifying overspending for simple items like a hollow pipe just to have a better known brand name.

The pipe appears to be of solid build quality in photos. They've also been in business for 19 years which cant be a bad thing.

[LordRuxpin]

Originally Posted by sspade

Got it. Waiting for the next eBay special to appear and definitely grabbing a catless DP. Not gunna lie, Im going to go ahead a take a chance on the Circuit Werks unit. Apparently there are members who have ran it for many many miles with no issues. I have a hard time justifying overspending for simple items like a hollow pipe just to have a better known brand name.

The pipe appears to be of solid build quality in photos. They've also been in business for 19 years which cant be a bad thing.

That's the one I ordered, supposedly they fixed the fitment issues they were having... so when it comes in today/tomorrow, i'll let you know of the quality. I'll also keep you posted on fit ment as well.

[rjd_F30]

Originally Posted by sspade

Understood... so let me ask you (and anyone else) this:

Is it bad to run a FMIC, DV+ and Catless DP with no tune at all?

As was said before, no, not bad for the car at all, you just won't be coming close to the car's potential with the mods you'll be running.

[rjd_F30]

Originally Posted by sspade

Got it. Waiting for the next eBay special to appear and definitely grabbing a catless DP. Not gunna lie, Im going to go ahead a take a chance on the Circuit Werks unit. Apparently there are members who have ran it for many many miles with no issues. I have a hard time justifying overspending for simple items like a hollow pipe just to have a better known brand name.

The pipe appears to be of solid build quality in photos. They've also been in business for 19 years which cant be a bad thing.

I totally agree. As long as it's well made and fits, no point in paying for a brand. However, I paid dearly for following this logic for my DP, to the tune of $560 in shop labor to get it to fit. Admittedly, I could've probably gotten a free return, but I just wanted to get the damn thing on. Live and learn.

[Steakpizza]

Quick update guys. Emailed BM3 and they responded that for the n20 you would get 50-70hp and similar torque gains. Closer to 50hp stock. No dyno or anything.

I'm confused because I see that Jb4 Stage 2 is around 260hp, but then I hear stock Map 5 Jb4 also around that? I would believe stock Jb4 map would be a bit lower, maybe 220 or so.

With BM3 they claim at least 50hp, so that would immediately put you at 230.

Can anyone clarify this?

[LordRuxpin]

Originally Posted by sspade

Got it. Waiting for the next eBay special to appear and definitely grabbing a catless DP. Not gunna lie, Im going to go ahead a take a chance on the Circuit Werks unit. Apparently there are members who have ran it for many many miles with no issues. I have a hard time justifying overspending for simple items like a hollow pipe just to have a better known brand name.

The pipe appears to be of solid build quality in photos. They've also been in business for 19 years which cant be a bad thing.

Welp, it came in... only issue I see is the lip on the exit side is slightly damaged, however that'll be fixed with some heat and pliers... the welds and everything else looks good, we'll see about this fitment asap... Untitled by Knucklez Bimmer, on Flickr

[rjd_F30]

Originally Posted by LordRuxpin

Welp, it came in... only issue I see is the lip on the exit side is slightly damaged, however that'll be fixed with some heat and pliers... the welds and everything else looks good, we'll see about this fitment asap... Untitled by Knucklez Bimmer, on Flickr

Never, ever take pliers to anything round. Ever. I learned this in the hardest of ways. By prying out the part that is kinked in, you can push in the part of the pipe the outside of the pliers is using as leverage, and you won't even know you're doing it, trust me. The slightest misalignment can cause a leak or just for the pipe not to fit. It can really screw up fitment. I have an N20 so my mid pipe connection is different, but I heard the mid pipe connection on the N26 can be finicky and that dent isn't gonna help your case.

[sspade]

Originally Posted by LordRuxpin

Welp, it came in... only issue I see is the lip on the exit side is slightly damaged, however that'll be fixed with some heat and pliers... the welds and everything else looks good, we'll see about this fitment asap... Untitled by Knucklez Bimmer, on Flickr

Did you purchase through eBay?

Was the seller "improvemotorsports" ?

I have confirmed that is the eBay store name for Circuit Werks.

Can you show us a close up pic of the issue?

[LordRuxpin]

Originally Posted by rjdnyy224

Never, ever take pliers to anything round. Ever. I learned this in the hardest of ways. By prying out the part that is kinked in, you can push in the part of the pipe the outside of the pliers is using as leverage, and you won't even know you're doing it, trust me. The slightest misalignment can cause a leak or just for the pipe not to fit. It can really screw up fitment. I have an N20 so my mid pipe connection is different, but I heard the mid pipe connection on the N26 can be finicky and that dent isn't gonna help your case.

Duly noted, we shall see what happens..

[LordRuxpin]

Originally Posted by sspade

Did you purchase through eBay?

Was the seller "improvemotorsports" ?

I have confirmed that is the eBay store name for Circuit Werks.

Can you show us a close up pic of the issue?

Yes I did get it from ebay... and I will tomorrow... I would have to go out to the car and take it out of the packaging and take a picture... I'm just lazy right now lol. But tomorrow... Np sir

[LordRuxpin]

Originally Posted by Steakpizza

Quick update guys. Emailed BM3 and they responded that for the n20 you would get 50-70hp and similar torque gains. Closer to 50hp stock. No dyno or anything.

I'm confused because I see that Jb4 Stage 2 is around 260hp, but then I hear stock Map 5 Jb4 also around that? I would believe stock Jb4 map would be a bit lower, maybe 220 or so.

With BM3 they claim at least 50hp, so that would immediately put you at 230.

Can anyone clarify this?

For what map are you talking about? Stg 1 or Stg 2?

[Steakpizza]

Originally Posted by LordRuxpin

For what map are you talking about? Stg 1 or Stg 2?

Stage 1 BM3 is what I was told.

Then I see a lot of stuff around where people claim that they get 250hp stock with Jb4 Map 5. Then I see dynos showing Stage 2 Map 5 Jb4 at around 260.