IRL single mid installed.

GenXG87 · 03-03-2024, 08:34 PM

Wow!
First the weight difference. Gotta be 20-25lbs.
Second sounds great.
Third I think this is what the car needed. I have a JB4 and this mid pipe really woke it up. Seat of the pants meter is like 30-40hp. Responsive and torquey too.

https://www.youtube.com/watch?v=HnArbN1Q4ag

Fitment was spot on. Pretty easy to install. Only gripe and it seems to be pretty common with some of the more cost effective solutions is no instructions, parts list or links to pdfs or videos.

I heard about cutting at the dimples. Well there is one spot with one dimple and one with two. Cut first at the one since it was less pipe removed. Then mocked it up and realized it needed to be cut at the two dimples, about 2 inches. That was perfect.

mike@x-ph.com · 03-04-2024, 02:42 PM

mtenhoven · 03-05-2024, 08:53 PM

Quote:

Originally Posted by GenXG87

Wow!
First the weight difference. Gotta be 20-25lbs.
Second sounds great.
Third I think this is what the car needed. I have a JB4 and this mid pipe really woke it up. Seat of the pants meter is like 30-40hp. Responsive and torquey too.

https://www.youtube.com/watch?v=HnArbN1Q4ag

Fitment was spot on. Pretty easy to install. Only gripe and it seems to be pretty common with some of the more cost effective solutions is no instructions, parts list or links to pdfs or videos.

I heard about cutting at the dimples. Well there is one spot with one dimple and one with two. Cut first at the one since it was less pipe removed. Then mocked it up and realized it needed to be cut at the two dimples, about 2 inches. That was perfect.

Looks like you went with the non-resonated version, correct?

GenXG87 · 03-05-2024, 09:34 PM

Quote:

Originally Posted by mtenhoven

Looks like you went with the non-resonated version, correct?

Correct. Still pretty quiet. Valves closed windows up it isn’t much difference. In the throttle you notice it.
Open valves a bit more noise at cruise. No drone. More burble on lift. WOT roars a bit now.

ZPD · 03-05-2024, 10:44 PM

Did you take this pic halfway through your Ohlins install?

GenXG87 · 03-06-2024, 06:37 AM

Quote:

Originally Posted by ZPD

Did you take this pic halfway through your Ohlins install?

lol. Good eye.

mtenhoven · 03-06-2024, 08:21 AM

Quote:

Originally Posted by GenXG87

Correct. Still pretty quiet. Valves closed windows up it isn’t much difference. In the throttle you notice it.
Open valves a bit more noise at cruise. No drone. More burble on lift. WOT roars a bit now.

Curious on what tool you chose to cut the OEM pipes, sawzall or chain type cutter. Did you end up dropping the entire exhaust?

EngineerTheVoid · 03-07-2024, 05:09 PM

Quote:

Originally Posted by mtenhoven

Curious on what tool you chose to cut the OEM pipes, sawzall or chain type cutter. Did you end up dropping the entire exhaust?

I installed one of these last week and used a sawzall. Cut the oem exhaust and dropped the middle section. Left the muffler box on the car.

GenXG87 · 03-07-2024, 07:36 PM

Quote:

Originally Posted by mtenhoven

Curious on what tool you chose to cut the OEM pipes, sawzall or chain type cutter. Did you end up dropping the entire exhaust?

I used a pneumatic cutoff tool with a metal cutting disc. Nothing fancy. Considered a sawzall but I felt like this was a cleaner cut.

You probably can't use a chain cutter with stainless pipe.

I dropped the whole exhaust. It takes like 10-15 min to drop. You need two people though cuz it's pretty heavy.

mtenhoven · 03-21-2024, 10:14 AM

Quote:

Originally Posted by EngineerTheVoid

I installed one of these last week and used a sawzall. Cut the oem exhaust and dropped the middle section. Left the muffler box on the car.

Confirming that you too cut the OEM exhaust on the second dot, correct?

mtenhoven · 04-08-2024, 06:19 PM

EngineerTheVoid & GenXG87 - How low does the main pipe hang coming off the downpipes prior to the bracket on your install?

Seems lower than I expected on my install.

turnsignalslol · 04-09-2024, 05:49 AM

How's the JB4 been on the G87? What settings have you been running? Lowkey interested in getting one for my car sometime in the future

GenXG87 · 04-09-2024, 07:44 AM

Quote:

Originally Posted by turnsignalslol

How's the JB4 been on the G87? What settings have you been running? Lowkey interested in getting one for my car sometime in the future

IMO it depends on use case. Daily use on the street it's awesome. I don't drag race this car, but for that I imagine it is great too.

However, on a road course it's not ideal. The main issue is that it will kick-in at a certain throttle %. This can cause some issues since throttle modulation needs to be consistent. So I set it to map 0 (stock) on a road course.

On the street I run map 2 on 93 and the car is a blast.

mike@x-ph.com · 04-09-2024, 06:30 PM

Quote:

Originally Posted by turnsignalslol

How's the JB4 been on the G87? What settings have you been running? Lowkey interested in getting one for my car sometime in the future

It's a solid option for more power safely

mtenhoven · 04-10-2024, 10:40 PM

Quote:

Originally Posted by mtenhoven

EngineerTheVoid & GenXG87 - How low does the main pipe hang coming off the downpipes prior to the bracket on your install?

Seems lower than I expected on my install.

Worked with Magic from IRL today on this and things were sorted out. Top notch service!

xps · 05-08-2024, 03:16 PM

There are 3 dimples on the stock exhaust, which one do we cut at??

Chi58 · 05-09-2024, 02:00 AM

Quote:

Originally Posted by xps

There are 3 dimples on the stock exhaust, which one do we cut at??

Second

GenXG87 · 05-09-2024, 07:37 AM

Quote:

Originally Posted by xps

There are 3 dimples on the stock exhaust, which one do we cut at??

I believe 2nd. I cut at the front dimple first and I had to cut again.

xps · 05-09-2024, 08:54 AM

Does your muffler stick out further after the mid pipe install? Should I readjust? How?

GenXG87 · 05-09-2024, 09:08 AM

Is it all the way in the clamps? Does not stick out and my hangars are vertical.

May need to be cut more. Or another thing is the y could be upside. Not sure if that is possible but when I was assembling I did have to double check because it looked like it could.

NovaChris · 05-09-2024, 10:52 AM

Would this effect emissions at all? Non California state.

mike@x-ph.com · 05-09-2024, 12:53 PM

Quote:

Originally Posted by NovaChris

Would this effect emissions at all? Non California state.

Midpipes do not trigger the check engine light, so if your state only does an OBD check, it won't set any flags.

03-03-2024, 08:34 PM	#1
GenXG87 Private First Class 185 Rep 133 Posts Drives: 2023 M2 & 2018 M2 Join Date: Apr 2023 Location: Savannah, GA iTrader: (0) Garage List 2023 BMW M2 [8.80] 2018 BMW M2 [9.75]	Wow! First the weight difference. Gotta be 20-25lbs. Second sounds great. Third I think this is what the car needed. I have a JB4 and this mid pipe really woke it up. Seat of the pants meter is like 30-40hp. Responsive and torquey too. https://www.youtube.com/watch?v=HnArbN1Q4ag Fitment was spot on. Pretty easy to install. Only gripe and it seems to be pretty common with some of the more cost effective solutions is no instructions, parts list or links to pdfs or videos. I heard about cutting at the dimples. Well there is one spot with one dimple and one with two. Cut first at the one since it was less pipe removed. Then mocked it up and realized it needed to be cut at the two dimples, about 2 inches. That was perfect. Attached Images __________________ 2023 G87 ///M2 6MT - Ohlins R&T, Vorshlag Camber Plates, Fall-Line Rear Toe Arms, APEX VS-5RS, Conti Extreme Contact Force, Pagid RSL29, BM3 Stg1, IRL single mid-pipe 2018 F87 ///M2 DCT - MPE, BM3 stg1, MAD Intake, xHP stg2, M4GTS Diff/Steering, Euro MDM, Ferodo 3.12, APEX VS-5RS, Potenza RE-71RS, Cobra Nogaro next mods: Ohlins R&T, Vorshlag Camber Plates, SPL parts IG: Follow ME: genXg87 Last edited by GenXG87; 03-03-2024 at 08:48 PM..
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03-04-2024, 02:42 PM	#2
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03-05-2024, 10:44 PM	#5
ZPD Second Lieutenant 451 Rep 268 Posts Drives: 2022 M850i GC, 2023 G87 Join Date: Dec 2022 Location: Texas iTrader: (0)	Did you take this pic halfway through your Ohlins install? __________________ 2022 M850i 2023 M2; MCS 3-way coilover, Vorshlag Camber plates, 19" Apex VS-5RS, 305 Nankang CR-S, Adro wing, IRL exhaust, Racechip, Mishi Skidplate, KG Splitter; IG:g87_43
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04-08-2024, 06:19 PM	#11
mtenhoven Private First Class 124 Rep 170 Posts Drives: 2023 Z4 sDrive30i & 2024 M2 Join Date: Oct 2015 Location: Chicagoland iTrader: (0)	EngineerTheVoid & GenXG87 - How low does the main pipe hang coming off the downpipes prior to the bracket on your install? Seems lower than I expected on my install.
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04-09-2024, 05:49 AM	#12
turnsignalslol Captain 275 Rep 618 Posts Drives: '24 G87 M2 Join Date: Feb 2022 Location: SoCal iTrader: (0)	How's the JB4 been on the G87? What settings have you been running? Lowkey interested in getting one for my car sometime in the future __________________ Current: 2024 G87 M2 (ZF8) Past: 2022 330i RWD 2020 M2 Competition DCT
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05-08-2024, 03:16 PM	#16
xps Private First Class 303 Rep 143 Posts Drives: bmw M2 Join Date: Feb 2020 Location: michigan iTrader: (0)	There are 3 dimples on the stock exhaust, which one do we cut at??
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05-09-2024, 08:54 AM	#19
xps Private First Class 303 Rep 143 Posts Drives: bmw M2 Join Date: Feb 2020 Location: michigan iTrader: (0)	Does your muffler stick out further after the mid pipe install? Should I readjust? How? Attached Images
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05-09-2024, 09:08 AM	#20
GenXG87 Private First Class 185 Rep 133 Posts Drives: 2023 M2 & 2018 M2 Join Date: Apr 2023 Location: Savannah, GA iTrader: (0) Garage List 2023 BMW M2 [8.80] 2018 BMW M2 [9.75]	Is it all the way in the clamps? Does not stick out and my hangars are vertical. May need to be cut more. Or another thing is the y could be upside. Not sure if that is possible but when I was assembling I did have to double check because it looked like it could. __________________ 2023 G87 ///M2 6MT - Ohlins R&T, Vorshlag Camber Plates, Fall-Line Rear Toe Arms, APEX VS-5RS, Conti Extreme Contact Force, Pagid RSL29, BM3 Stg1, IRL single mid-pipe 2018 F87 ///M2 DCT - MPE, BM3 stg1, MAD Intake, xHP stg2, M4GTS Diff/Steering, Euro MDM, Ferodo 3.12, APEX VS-5RS, Potenza RE-71RS, Cobra Nogaro next mods: Ohlins R&T, Vorshlag Camber Plates, SPL parts IG: Follow ME: genXg87
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05-09-2024, 10:52 AM	#21
NovaChris Private First Class 242 Rep 192 Posts Drives: '23 M3 Join Date: Aug 2020 Location: Nova VA iTrader: (0) Garage List 2020 Ford Explorer [0.00]	Would this effect emissions at all? Non California state.
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