RPi Exhaust (F10 M5) Dyno results are in. OH YEA! - Page 2 - M5POST

sales@vivid · 01-04-2013, 08:06 PM

Quote:

Originally Posted by RPiM5

Also the titantium, while super strong and super light, is not the best metal for exhaust systems because it does not deal with heat well. Exhausts need to have flexibility of expanding and contracting in order to maximize air flow for heat disapation and power generation. That's why T-304 Stainless Steel is one of the best metals out there for exhausts and is RPi exclusively uses this type of metal. Just remember dudes, knowing is half the battle.

I'm not sure I get what you are saying there.
How does a Stainless exhaust expanding .5mm over its entire length help maximize airflow?
Also, heat dissipation from the exhaust (in general) would actually hinder performance. When exhaust gasses stay hot, it improves the scavenging effect, increasing power.

the infamous... · 01-07-2013, 04:20 PM

damn! impressive gains

boots · 01-09-2013, 05:37 PM

thank you sir.

nv6425 · 01-27-2013, 10:44 AM

Thanks for the ride on Friday, boots, it was great meeting you! The car definitely sounds awesome and pulls like crazy!! I could feel the power difference in the seat of my pants especially around 4000 rpms and that scream was fantastic! Looking forward to getting all of the Houston M5 guys together for an exhaust comparo!

mcvaughan · 01-28-2013, 09:24 AM

Quote:

Originally Posted by nv6425

Looking forward to getting all of the Houston M5 guys together for an exhaust comparo!

I'm in.

boots · 01-28-2013, 05:39 PM

It was great to meet you also and happy you liked the way the car drove. Hopefully we can get the houston group together. I should have my wheels returned to me by next week and they will go back on, but since I leave out again tomorrow I will have to see you guys in about 3 weeks. I still want to hear that akra exhaust McVaughan. I know its badazz.

Timberwolf · 01-29-2013, 10:48 PM

Boots,
Solid gains my friend! Do you experience any drone with the gts? I hear its the gt that is droney. Any feedback? Cruising to work with drone is like automotive water boarding lol

Thanks

G

boots · 01-29-2013, 11:31 PM

Thanks. There is Absolutely no drone. I made a video from the inside also if that will help you. I think I put it under rpi f10 exhaust on YouTube. ubtrippin is my screen name.

nv6425 · 01-30-2013, 06:48 AM

Quote:

Originally Posted by boots

Thanks. There is Absolutely no drone. I made a video from the inside also if that will help you. I think I put it under rpi f10 exhaust on YouTube. ubtrippin is my screen name.

Ditto, I was listening hard for any drone, and it was non-existent!

01-07-2013, 04:20 PM	#24
the infamous... Lieutenant General Drives: like I'M BOUT THAT LIFE Join Date: Jul 2008 Location: PARADISE aka DAWNTOWN Posts: 16,890 iTrader: (0)	damn! impressive gains __________________ "simple is clean" -The ///ModFather [ iND ] - [ eAs ] - [ ACM ] - [ LTMW ] - [ AA ]

01-09-2013, 05:37 PM	#25
boots First Lieutenant Drives: 2013 Bmw m5 Join Date: Nov 2012 Location: Houston Posts: 390 iTrader: (0)	thank you sir. __________________ 2013 Bmw M5-Alpine White/Black-Rotiform Sna 20x9 20x10.5-Expel clear bra-35% tint-Rpi Gts Exhaust 562Hp/524Tq

01-27-2013, 10:44 AM	#26
nv6425 Second Lieutenant Drives: 2013 F10 M5, 2012 740i M-Sport Join Date: Sep 2011 Location: Houston, TX Posts: 253 iTrader: (0)	Thanks for the ride on Friday, boots, it was great meeting you! The car definitely sounds awesome and pulls like crazy!! I could feel the power difference in the seat of my pants especially around 4000 rpms and that scream was fantastic! Looking forward to getting all of the Houston M5 guys together for an exhaust comparo! __________________ Present: 2013 Silverstone///M5/Executive Package/B&O/20" Wheels/DCT/Black Interior Past: 2013 Imperial Blue///M5/Executive Package/20" Wheels/DCT/Sakhir Orange 2012 Mineral White///M3 Coupe/Competition Package/DCT/Fox Red Interior

01-28-2013, 05:39 PM	#28
boots First Lieutenant Drives: 2013 Bmw m5 Join Date: Nov 2012 Location: Houston Posts: 390 iTrader: (0)	It was great to meet you also and happy you liked the way the car drove. Hopefully we can get the houston group together. I should have my wheels returned to me by next week and they will go back on, but since I leave out again tomorrow I will have to see you guys in about 3 weeks. I still want to hear that akra exhaust McVaughan. I know its badazz. __________________ 2013 Bmw M5-Alpine White/Black-Rotiform Sna 20x9 20x10.5-Expel clear bra-35% tint-Rpi Gts Exhaust 562Hp/524Tq

01-29-2013, 10:48 PM	#29
Timberwolf First Lieutenant Drives: People crazy Join Date: Mar 2008 Location: Location, Location Posts: 374 iTrader: (0)	Boots, Solid gains my friend! Do you experience any drone with the gts? I hear its the gt that is droney. Any feedback? Cruising to work with drone is like automotive water boarding lol Thanks G __________________ MCB 13 M5 07 997 TT - Gone 11 Corvette Z06 - Gone 07 Shelby GT500 - Gone 06 Z06 - Gone

01-29-2013, 11:31 PM	#30
boots First Lieutenant Drives: 2013 Bmw m5 Join Date: Nov 2012 Location: Houston Posts: 390 iTrader: (0)	Thanks. There is Absolutely no drone. I made a video from the inside also if that will help you. I think I put it under rpi f10 exhaust on YouTube. ubtrippin is my screen name. __________________ 2013 Bmw M5-Alpine White/Black-Rotiform Sna 20x9 20x10.5-Expel clear bra-35% tint-Rpi Gts Exhaust 562Hp/524Tq

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