THE RPI Axle Back Exhaust Install Thread-Pics and Video

jojogoya88 · 06-26-2009, 10:51 AM

Quote:

Originally Posted by askiles

Where did he say stage 3? He said section 3, which this is the 3rd section of the exhaust system as a whole.

Headers = 1
Midpipes = 2
Rear Section w/ Mufflers = 3

-Andy

No i was just referring to his Sig, it says he has Stage 3 RPI exhaust. Where does the stage 3 come from? Not tryin to be a smart ass here, well maybe just a little bit..

SoCalM3Mang · 06-26-2009, 10:55 AM

Quote:

Originally Posted by jojogoya88

No i was just referring to his Sig, it says he has Stage 3 RPI exhaust. Where does the stage 3 come from? Not tryin to be a smart ass here, well maybe just a little bit..

It was a mistake in my Sig File. Thanks for the catch. It should say:

"Section 3".

You are entitled to be a Smart Ass. It made me laugh.

jojogoya88 · 06-26-2009, 11:02 AM

Quote:

Originally Posted by SoCalM3Mang

It was a mistake in my Sig File. Thanks for the catch. It should say:

"Section 3".

You are entitled to be a Smart Ass. It made me laugh.

Haha, sorry about that! But exhaust sounds good by the way, like the murdered look a lot.

RPIpower · 06-26-2009, 12:48 PM

People are used to calling is sec 3 but we only sell the exhaust in 2 parts. Front pipes with x/h and the axle back. So, if we want to get technical, the mufflers are technically be called sec 4. lol

SCCAForums.com · 07-06-2009, 09:45 PM

Jay... with all this excitement... I was expecting to see some before & after dyno's...

Do you have any?

Thanks,
Dave

SoCalM3Mang · 07-07-2009, 01:18 PM

Quote:

Originally Posted by SCCAForums.com

Jay... with all this excitement... I was expecting to see some before & after dyno's...

Do you have any?

Thanks,
Dave

What's up bro? I don't have any Dyno's "yet". But plan on getting them from RPI when they have their next DYNO DAY.

It will be interesting for sure.

SCCAForums.com · 07-07-2009, 02:18 PM

Can't Wait! Looking good!

Dave

RPIpower · 07-07-2009, 04:08 PM

We did some DB tests last night. I have the test on video but it doesnt want to upload right now for some reason. The test was done at about 20" from the exhaust tip at a 45 degree angle. In nuetral, revved to 7500rpm, the db is 112. At 4900rpm its 97-98db. At 6000rpm its hovering at the 100db range.

MMMorish · 07-08-2009, 09:15 AM

Quote:

Originally Posted by RPIpower

We did some DB tests last night. I have the test on video but it doesnt want to upload right now for some reason. The test was done at about 20" from the exhaust tip at a 45 degree angle. In nuetral, revved to 7500rpm, the db is 112. At 4900rpm its 97-98db. At 6000rpm its hovering at the 100db range.

How does that compare to stock and even some of the other more popular exhaust systems out there?

RPIpower · 07-08-2009, 06:00 PM

Quote:

Originally Posted by MMMorish

How does that compare to stock and even some of the other more popular exhaust systems out there?

You know what? LMAO,.I posted on the wrong thread. The above post was supposed to go on zpost for our z4m exhaust.

As for the db on the M3, I have not tested it stock nor on other aftermarket systems.

MrHarris · 07-08-2009, 06:04 PM

Quote:

Originally Posted by RPIpower

You know what? LMAO,.I posted on the wrong thread. The above post was supposed to go on zpost for our z4m exhaust.

As for the db on the M3, I have not tested it stock nor on other aftermarket systems.

Good one Eloy

RPIpower · 07-08-2009, 06:58 PM

Quote:

Originally Posted by MrHarris

Good one Eloy

Hehe, sorry man. Too many forums...........my emails are all replies from forums and enquiries we get from our sites.

riyatch · 07-08-2009, 08:05 PM

any weight savings with this setup?

Periokid · 07-08-2009, 09:07 PM

Quote:

Originally Posted by SoCalM3Mang

There is a slight drone in the "Drone Range" of V-8's (1800-2500 RPM).

I was so excited until I read this part.

NFDoms2k1 · 07-08-2009, 11:06 PM

Quote:

Originally Posted by riyatch

any weight savings with this setup?

Yeah, I am sure Eloy can post the numbers but it is SIGNIFICANTLY lighter. The stock muffler is ridiculously heavy. Even more impressive are the front and midpipes - the four cats and two resonators are much heavier than you would think, so RPis straight pipes weight a fraction of stock.

SoCalM3Mang · 07-09-2009, 12:33 AM

Quote:

Originally Posted by Periokid

I was so excited until I read this part.

Umm...why would you be less excited?

There is no V-8 exhaust that doesn't have a slight drone in the "Drone Range". Even the M3 stock exhaust drones there.

The car is insane fellas. I get stopped a couple of times a day by people commenting on how amazing it sounds.

Just the other day at the Car Wash on Colorado Blvd in Pasadena(intersection of Sierra Madre)the owner walked up to me and said this:

Quote:

I get a lot of exotic cars that come thru here but I haven't heard a single one that sounds as good as your BMW--What the hell have you done to that motor to make it sound like that"?

albert1028 · 07-09-2009, 01:04 AM

Man, you got me excited on this upgrade. I just moved from Pasadena to Alhambra and hope to hear your exhaust sometime.

Also, since it's just muffler, these have no issues with smog checks right?

Thanks.

Quote:

Originally Posted by SoCalM3Mang

Umm...why would you be less excited?

There is no V-8 exhaust that doesn't have a slight drone in the "Drone Range". Even the M3 stock exhaust drones there.

The car is insane fellas. I get stopped a couple of times a day by people commenting on how amazing it sounds.

Just the other day at the Car Wash on Colorado Blvd in Pasadena(intersection of Sierra Madre)the owner walked up to me and said this:

powertrip · 07-09-2009, 01:07 AM

You are 100% correct, Jay. All exhausts drone on these cars; even my AA with noise cancelling chambers drones under light acceleration between 1700-2300 rpms. I'm intrigued to see how my car will sound once the Gintani is installed on Saturday

.

Quote:

Originally Posted by SoCalM3Mang

Umm...why would you be less excited?

There is no V-8 exhaust that doesn't have a slight drone in the "Drone Range". Even the M3 stock exhaust drones there.

The car is insane fellas. I get stopped a couple of times a day by people commenting on how amazing it sounds.

Just the other day at the Car Wash on Colorado Blvd in Pasadena(intersection of Sierra Madre)the owner walked up to me and said this:

SoCalM3Mang · 07-09-2009, 12:32 PM

Quote:

Originally Posted by albert1028

Man, you got me excited on this upgrade. I just moved from Pasadena to Alhambra and hope to hear your exhaust sometime.

Also, since it's just muffler, these have no issues with smog checks right?

Thanks.

Hey Bro. Hit me up at musclecouple@gmail.com if you want to hear it.
I'm in the SGV most of the day for the next week.

Quote:

Originally Posted by powertrip

You are 100% correct, Jay. All exhausts drone on these cars; even my AA with noise cancelling chambers drones under light acceleration between 1700-2300 rpms. I'm intrigued to see how my car will sound once the Gintani is installed on Saturday

.

Hey Elden! Sounds awesome man! I'm excited for you!

Let's meet up Saturday? Might even come out there to check it out?

RPIpower · 07-09-2009, 12:49 PM

Hey guys, I know some of you guys ordered this week. Im trying to crank these out as fast as I can since we are sold out. Ill be shipping a couple this week. Guys who ordered yesterday or today should have it shipped out from here in about 4-5 days.

powertrip · 07-09-2009, 12:55 PM

Hey Jay, sounds great. I'll shoot you a text on Saturday when I'm headed up to Gintani

.

Quote:

Originally Posted by SoCalM3Mang

Hey Bro. Hit me up at musclecouple@gmail.com if you want to hear it.
I'm in the SGV most of the day for the next week.

Hey Elden! Sounds awesome man! I'm excited for you!

Let's meet up Saturday? Might even come out there to check it out?

McLuVan · 07-09-2009, 01:45 PM

my theory is that RPI put a mini turbo into the muffler

06-26-2009, 12:48 PM	#26
RPIpower Captain 49 Rep 857 Posts Drives: F97 X3M, G80 M3 Join Date: Aug 2007 Location: PA iTrader: (0)	People are used to calling is sec 3 but we only sell the exhaust in 2 parts. Front pipes with x/h and the axle back. So, if we want to get technical, the mufflers are technically be called sec 4. lol
	Appreciate 0 Quote

07-06-2009, 09:45 PM	#27
SCCAForums.com Captain 40 Rep 726 Posts Drives: Race Cars Join Date: Dec 2007 Location: Chandler, AZ iTrader: (2)	Jay... with all this excitement... I was expecting to see some before & after dyno's... Do you have any? Thanks, Dave __________________ 2010 ZR1 3ZR Wht/Blk 10.7 @ 132 2011 C63 AMG P31 Car Blk/Blk 11.8 @ 117 2010 Nissan GT-R 10.8 @ 129 (Sold) 2008 Lexus IS-F (Sold) 12.5 @ 113 / 2008 Shelby GT500 (Sold) 11.3 @ 126 2008 e90 M3 6MT 12.8 @ 111 (Sold) / 2006 e60 M5 12.4 @ 114 (Sold)
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07-07-2009, 02:18 PM	#29
SCCAForums.com Captain 40 Rep 726 Posts Drives: Race Cars Join Date: Dec 2007 Location: Chandler, AZ iTrader: (2)	Can't Wait! Looking good! Dave __________________ 2010 ZR1 3ZR Wht/Blk 10.7 @ 132 2011 C63 AMG P31 Car Blk/Blk 11.8 @ 117 2010 Nissan GT-R 10.8 @ 129 (Sold) 2008 Lexus IS-F (Sold) 12.5 @ 113 / 2008 Shelby GT500 (Sold) 11.3 @ 126 2008 e90 M3 6MT 12.8 @ 111 (Sold) / 2006 e60 M5 12.4 @ 114 (Sold)
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07-07-2009, 04:08 PM	#30
RPIpower Captain 49 Rep 857 Posts Drives: F97 X3M, G80 M3 Join Date: Aug 2007 Location: PA iTrader: (0)	We did some DB tests last night. I have the test on video but it doesnt want to upload right now for some reason. The test was done at about 20" from the exhaust tip at a 45 degree angle. In nuetral, revved to 7500rpm, the db is 112. At 4900rpm its 97-98db. At 6000rpm its hovering at the 100db range.
	Appreciate 0 Quote

07-08-2009, 08:05 PM	#35
riyatch Lieutenant 15 Rep 474 Posts Drives: e90 M3 Join Date: Jul 2007 Location: Vegas iTrader: (1)	any weight savings with this setup?
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07-09-2009, 12:49 PM	#42
RPIpower Captain 49 Rep 857 Posts Drives: F97 X3M, G80 M3 Join Date: Aug 2007 Location: PA iTrader: (0)	Hey guys, I know some of you guys ordered this week. Im trying to crank these out as fast as I can since we are sold out. Ill be shipping a couple this week. Guys who ordered yesterday or today should have it shipped out from here in about 4-5 days.
	Appreciate 0 Quote

07-09-2009, 01:45 PM	#44
McLuVan Lieutenant General 304 Rep 13,114 Posts Drives: ///M3 Join Date: Jan 2008 Location: Socal~818~ iTrader: (1)	my theory is that RPI put a mini turbo into the muffler __________________
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