Straight pipe

vanilla.j_ · 08-14-2018, 06:49 AM

I have an aftermarket exhaust on my F10 but it's not loud enough. I'm thinking of going straight pipe but don't know if I really need to straight pipe the whole thing or just from the mufflers. Anybody have either setup and can talk about how the drone is? Also any codes that came up? Thank you

boots · 08-14-2018, 12:08 PM

adding down pipes will surely help you first. straight pipes 2nd

RPiM5 · 08-14-2018, 03:36 PM

Listen to Boots, he's a cool dude.

vanilla.j_ · 08-14-2018, 06:50 PM

Quote:

Originally Posted by boots

adding down pipes will surely help you first. straight pipes 2nd

If going downpipes with cats, would it still be loud or should I consider going catless?

vanilla.j_ · 08-14-2018, 06:56 PM

Quote:

Originally Posted by RPiM5

Listen to Boots, he's a cool dude.

I'll do it! Coming from you man should be sound advice haha. Also your M5 is what made me want an F10 man. Seen an exhaust of your car and YouTube and it was beautiful!

RPiM5 · 08-15-2018, 02:17 PM

Quote:

Originally Posted by vanilla.j_

Quote:

Originally Posted by RPiM5

Listen to Boots, he's a cool dude.

I'll do it! Coming from you man should be sound advice haha. Also your M5 is what made me want an F10 man. Seen an exhaust of your car and YouTube and it was beautiful!

Yes sir, coming from an E60 M5 with RPi Catless Headers and RPi GT Exhaust, I had to find a way to make the F10 sound just as good as the E60's V10, in order for me to keep the car. If it weren't for the F10 RPi GTM Exhaust I would've gotten rid of the F10 M5 a long long time ago.

boots · 08-15-2018, 08:47 PM

and your car is still running strong d.

Pikey Motorsports · 08-20-2018, 05:07 PM

I’ve ran straight pipes with cats and straight pipes with catless downpipes

With downpipes it’s crazy loud ideally to loud but I like it.. but couldn’t bare with the cold starts so turned that off

Most will probably prefer the sound levels with cats

Craze · 08-20-2018, 06:39 PM

I have catless but find its not loud enough

Is the rpi gtm setup drone free and still get cracks during gearchange??

straightpipeguru · 08-21-2018, 01:52 PM

A catless DP with the RPI GTM would take it to the insane level. some drone at around 1800 rpm but no one really drives at that rpm. cracks and pows during gear change for sure

Quote:

Originally Posted by Craze

I have catless but find its not loud enough

Is the rpi gtm setup drone free and still get cracks during gearchange??

boots · 08-22-2018, 05:47 PM

it's not that bad w that set up. I love mine and zero complaints from my wife

straightpipeguru · 09-25-2018, 12:46 PM

zero complain from the wife is awesome !!!!

Quote:

Originally Posted by boots

it's not that bad w that set up. I love mine and zero complaints from my wife

theinfamousdrew · 09-30-2018, 05:19 AM

Curious to know what exhaust you already have on it? I have the Turner straight pipes which is just a muffler replacement. I love the sound and not a lot of drone.

boots · 10-05-2018, 06:32 AM

I'm using rpi dp and straight pipes.

Craze · 10-05-2018, 07:03 AM

Ive got catless downpipes and stock exhaust

I put comp mufflers one rear and it didn't change much

Is removing resonators going to make it much louder?

TheHouseWon · 10-06-2018, 08:59 AM

Quote:

Originally Posted by Craze

Ive got catless downpipes and stock exhaust

I put comp mufflers one rear and it didn't change much

Is removing resonators going to make it much louder?

Louder but more drone.

VETTEPRO · 10-20-2018, 10:51 AM

I have CP exhaust. I cut out the top rear section of the muffler and pulled out all the packing. Then I made a sheet metal plate and formed it around the section of pipe that has all the holes in it. I welded that in place and then welded the top section of the muffler back on. Just the top half has the holes covered. I can't get to the bottom of the pipe without cutting out the bottom of the muffler.
It sounds great with no drone. Definitely louder and more "crackly" than stock.
I also cut out a resonator and found absolutely nothing inside. It's just a straight through pipe with no holes or anything, so I just welded it back in. I don't see how a straight pipe would change anything.
Maybe the standard exhaust has vent holes inside the resonators but the CP resonators definitely do not.

jpchavarriaga · 10-20-2018, 03:50 PM

whatever you do avoid deleting mufflers, the drone between 1500-2000rpm is terrible!

boots · 10-20-2018, 06:41 PM

perhaps on your car but not mine.

straightpipeguru · 10-24-2018, 07:28 AM

yup! drone is all relative anyway...
RPi catless DP and GTM FTW!!!

Quote:

Originally Posted by boots

perhaps on your car but not mine.

08-14-2018, 06:49 AM	#1
vanilla.j_ Enlisted Member 12 Rep 40 Posts Drives: Singapore Gray/Venetia Beige Join Date: Jul 2018 Location: Bay Area , CA iTrader: (0)	Straight pipe I have an aftermarket exhaust on my F10 but it's not loud enough. I'm thinking of going straight pipe but don't know if I really need to straight pipe the whole thing or just from the mufflers. Anybody have either setup and can talk about how the drone is? Also any codes that came up? Thank you
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08-14-2018, 12:08 PM	#2
boots Curve Thrasher 623 Rep 3,773 Posts Drives: 2013 Bmw m5..White/Blk. Join Date: Nov 2012 Location: Cypress Tx iTrader: (0)	adding down pipes will surely help you first. straight pipes 2nd __________________ 2013 Bmw M5-Alpine White/Black-Oem gloss blk powder coated wheels-Expel clear bra-35% tint-Rpi Gtm Exhaust-Rpi Downpipes-Rpi Scoops-Halim Cazimi Performance Tune-KwV3 coilovers Country run
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08-14-2018, 03:36 PM	#3
RPiM5 Major General 2870 Rep 7,885 Posts Drives: Black M5 Join Date: Apr 2012 Location: Earth 616 iTrader: (0)	Listen to Boots, he's a cool dude. __________________
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08-15-2018, 08:47 PM	#7
boots Curve Thrasher 623 Rep 3,773 Posts Drives: 2013 Bmw m5..White/Blk. Join Date: Nov 2012 Location: Cypress Tx iTrader: (0)	and your car is still running strong d. __________________ 2013 Bmw M5-Alpine White/Black-Oem gloss blk powder coated wheels-Expel clear bra-35% tint-Rpi Gtm Exhaust-Rpi Downpipes-Rpi Scoops-Halim Cazimi Performance Tune-KwV3 coilovers Country run
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08-20-2018, 05:07 PM	#8
Pikey Motorsports Lieutenant 139 Rep 420 Posts Drives: M5 Join Date: Apr 2018 Location: Bristol iTrader: (0)	I’ve ran straight pipes with cats and straight pipes with catless downpipes With downpipes it’s crazy loud ideally to loud but I like it.. but couldn’t bare with the cold starts so turned that off Most will probably prefer the sound levels with cats
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08-20-2018, 06:39 PM	#9
Craze Captain 161 Rep 687 Posts Drives: M5 E60, M5 F10, X5 50i Join Date: Oct 2017 Location: Australia iTrader: (0)	I have catless but find its not loud enough Is the rpi gtm setup drone free and still get cracks during gearchange??
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08-22-2018, 05:47 PM	#11
boots Curve Thrasher 623 Rep 3,773 Posts Drives: 2013 Bmw m5..White/Blk. Join Date: Nov 2012 Location: Cypress Tx iTrader: (0)	it's not that bad w that set up. I love mine and zero complaints from my wife __________________ 2013 Bmw M5-Alpine White/Black-Oem gloss blk powder coated wheels-Expel clear bra-35% tint-Rpi Gtm Exhaust-Rpi Downpipes-Rpi Scoops-Halim Cazimi Performance Tune-KwV3 coilovers Country run
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09-30-2018, 05:19 AM	#13
theinfamousdrew I'm The Captain Now 501 Rep 1,809 Posts Drives: X5M/X7 Join Date: Sep 2010 Location: Charlotte iTrader: (12) Garage List 2021 BMW X7 MSport ... [0.00] 2018 Raptor [0.00] 2015 X5M (SOLD) [0.00] 2014 BMW M5 (SOLD) [10.00] 2014 BMW M5 Totaled [10.00] 2014 Jeep SRT (SOLD) [0.00] 2012 C63 AMG (SOLD) [0.00] 2015 BMW M4 (SOLD) [0.00] 2011 Porsche Cayenn ... [0.00] 2007 911 Turbo (997 ... [0.00] 2013 335i M Sport ( ... [0.00] 2002 Porsche 911 Tu ... [0.00] 2008 BMW 135i (SOLD) [6.00] 2002 BMW M3 SOLD [10.00]	Curious to know what exhaust you already have on it? I have the Turner straight pipes which is just a muffler replacement. I love the sound and not a lot of drone. __________________ Turn on. Tune in. Drop out. IG: @InfamousCarGuy
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10-05-2018, 06:32 AM	#14
boots Curve Thrasher 623 Rep 3,773 Posts Drives: 2013 Bmw m5..White/Blk. Join Date: Nov 2012 Location: Cypress Tx iTrader: (0)	I'm using rpi dp and straight pipes. __________________ 2013 Bmw M5-Alpine White/Black-Oem gloss blk powder coated wheels-Expel clear bra-35% tint-Rpi Gtm Exhaust-Rpi Downpipes-Rpi Scoops-Halim Cazimi Performance Tune-KwV3 coilovers Country run
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10-05-2018, 07:03 AM	#15
Craze Captain 161 Rep 687 Posts Drives: M5 E60, M5 F10, X5 50i Join Date: Oct 2017 Location: Australia iTrader: (0)	Ive got catless downpipes and stock exhaust I put comp mufflers one rear and it didn't change much Is removing resonators going to make it much louder?
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10-20-2018, 10:51 AM	#17
VETTEPRO First Lieutenant 248 Rep 326 Posts Drives: 2021 X5M Comp, Grigio Telesto Join Date: Sep 2018 Location: Ventura California iTrader: (2)	I have CP exhaust. I cut out the top rear section of the muffler and pulled out all the packing. Then I made a sheet metal plate and formed it around the section of pipe that has all the holes in it. I welded that in place and then welded the top section of the muffler back on. Just the top half has the holes covered. I can't get to the bottom of the pipe without cutting out the bottom of the muffler. It sounds great with no drone. Definitely louder and more "crackly" than stock. I also cut out a resonator and found absolutely nothing inside. It's just a straight through pipe with no holes or anything, so I just welded it back in. I don't see how a straight pipe would change anything. Maybe the standard exhaust has vent holes inside the resonators but the CP resonators definitely do not. __________________ 2021 Individual Grigio Telesto Gray Pearl Metallic X5M C, BC Forged, Dinan tuned, Dinan suspension, MAD Downpipes, Dinan Exhaust. More to come. Owner, Designer, Tuner- A&A Corvette Superchargers WWW.AACORVETTE.COM
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10-20-2018, 03:50 PM	#18
jpchavarriaga Registered 0 Rep 2 Posts Drives: white 2013 f10 m5 Join Date: Oct 2018 Location: north carolina usa iTrader: (0)	keep mufflers on whatever you do avoid deleting mufflers, the drone between 1500-2000rpm is terrible!
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10-20-2018, 06:41 PM	#19
boots Curve Thrasher 623 Rep 3,773 Posts Drives: 2013 Bmw m5..White/Blk. Join Date: Nov 2012 Location: Cypress Tx iTrader: (0)	perhaps on your car but not mine. __________________ 2013 Bmw M5-Alpine White/Black-Oem gloss blk powder coated wheels-Expel clear bra-35% tint-Rpi Gtm Exhaust-Rpi Downpipes-Rpi Scoops-Halim Cazimi Performance Tune-KwV3 coilovers Country run
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