Borla Exhaust

Amir87 · 11-19-2007, 10:07 PM

I have searched and heard the clips of the borla on youtube.

I want to hear feedback from Borla owners about the sound and compare the soud to other exhuast systems for the 335i. I understand that the borla is on the quite side but how quite is it?

If I take off the cats and replace it for a straight pipe, will it be any louder?

Thanks

-Amir

Amir87 · 11-20-2007, 12:32 PM

No one?

I know atleast a few members here who have the borla on thier 335.

Amir87 · 11-24-2007, 02:21 AM

j28s · 11-26-2007, 04:03 PM

I had the Borla installed on my car last week. I wanted something close to stock sound..not loud. Here's the results (this is from my point of view INSIDE the car).
At idle it slightly louder but not much at all (deeper tone).
The 2k to 2.5K range it is loud in and out of the car under any throttle position. Once it gets over 3k range it sounds slightly louder than stock. I would say the exhaust as a whole isn't louder...maybe a few db's. More than anything the tone is deeper than loud. You do hear some vacuum effects since (the oem exhaust has a vacuum unit on the driver's side rear which opens and closes on throttle position). By this I mean, the exhaust shutters a bit when you rev it a little and at lower RPMs.

I'll be dyno'ing the car again within the next two weeks to see what type of gains I achieved. My buttseat dyno can't tell a difference with the Borla on vs. oem, but we'll soon find out...

Amir87 · 11-27-2007, 02:44 PM

Keep us updated!

HP Autosport · 12-10-2007, 07:04 PM

Quote:

Originally Posted by j28s

I had the Borla installed on my car last week. I wanted something close to stock sound..not loud. Here's the results (this is from my point of view INSIDE the car).
At idle it slightly louder but not much at all (deeper tone).
The 2k to 2.5K range it is loud in and out of the car under any throttle position. Once it gets over 3k range it sounds slightly louder than stock. I would say the exhaust as a whole isn't louder...maybe a few db's. More than anything the tone is deeper than loud. You do hear some vacuum effects since (the oem exhaust has a vacuum unit on the driver's side rear which opens and closes on throttle position). By this I mean, the exhaust shutters a bit when you rev it a little and at lower RPMs.

I'll be dyno'ing the car again within the next two weeks to see what type of gains I achieved. My buttseat dyno can't tell a difference with the Borla on vs. oem, but we'll soon find out...

It would be great to see another independent test/dyno of the Borla system!

SE3P_to_E90 · 12-13-2007, 07:41 AM

i had a borla catback system on my rx8... favorite mod by all means.
it was noticeably louder, but subtle at the same time (if that makes any sense). it truely brought out the low rumble from the engine, and sounded fantastic. If i hadn't got my eisenmann, i would've looked a lot more into the borla exhaust system for my e90.

Chio · 12-13-2007, 04:38 PM

worth the $

moparfan74 · 12-20-2007, 01:34 PM

I love my borla system, I got mine from goborla.com http://www.goborla.com/product.php?productid=336763?twg

wj4 · 12-20-2007, 01:39 PM

I believe member AK tek 818 removed the 2ndary cats when he installed his Borla catback exhaust and he loves it!

Don Nguyen · 12-21-2007, 12:18 AM

Def worth the money.

-Don

dr.roro · 01-06-2008, 12:53 PM

Quote:

Originally Posted by j28s

The 2k to 2.5K range it is loud in and out of the car under any throttle position.

How loud? Is it a noticeable drone during cruising speeds?

11-19-2007, 10:07 PM	#1
Amir87 Gruppe Titan 279 Rep 2,839 Posts Drives: 08 E92 SG/Coral Join Date: Sep 2007 Location: NC iTrader: (37) Garage List 2008 E92 335i [10.00]	Borla Exhaust I have searched and heard the clips of the borla on youtube. I want to hear feedback from Borla owners about the sound and compare the soud to other exhuast systems for the 335i. I understand that the borla is on the quite side but how quite is it? If I take off the cats and replace it for a straight pipe, will it be any louder? Thanks -Amir
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11-20-2007, 12:32 PM	#2
Amir87 Gruppe Titan 279 Rep 2,839 Posts Drives: 08 E92 SG/Coral Join Date: Sep 2007 Location: NC iTrader: (37) Garage List 2008 E92 335i [10.00]	No one? I know atleast a few members here who have the borla on thier 335.
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11-24-2007, 02:21 AM	#3
Amir87 Gruppe Titan 279 Rep 2,839 Posts Drives: 08 E92 SG/Coral Join Date: Sep 2007 Location: NC iTrader: (37) Garage List 2008 E92 335i [10.00]
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11-26-2007, 04:03 PM	#4
j28s Private First Class 17 Rep 156 Posts Drives: 2008 335i - 6mt - Sedan Join Date: Oct 2005 Location: US iTrader: (0)	I had the Borla installed on my car last week. I wanted something close to stock sound..not loud. Here's the results (this is from my point of view INSIDE the car). At idle it slightly louder but not much at all (deeper tone). The 2k to 2.5K range it is loud in and out of the car under any throttle position. Once it gets over 3k range it sounds slightly louder than stock. I would say the exhaust as a whole isn't louder...maybe a few db's. More than anything the tone is deeper than loud. You do hear some vacuum effects since (the oem exhaust has a vacuum unit on the driver's side rear which opens and closes on throttle position). By this I mean, the exhaust shutters a bit when you rev it a little and at lower RPMs. I'll be dyno'ing the car again within the next two weeks to see what type of gains I achieved. My buttseat dyno can't tell a difference with the Borla on vs. oem, but we'll soon find out... __________________ e90 335i - PSS9, UUC Adj Swaybars, Borla Catback, Toyo RA1, blah blah blah blah... Racing is an addiction that can only be cured by poverty. Background: SCCA and NASA PRO Racing
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11-27-2007, 02:44 PM	#5
Amir87 Gruppe Titan 279 Rep 2,839 Posts Drives: 08 E92 SG/Coral Join Date: Sep 2007 Location: NC iTrader: (37) Garage List 2008 E92 335i [10.00]	Keep us updated!
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12-13-2007, 07:41 AM	#7
SE3P_to_E90 Banned 238 Rep 3,030 Posts Drives: E90 Msport + E83 Msport Join Date: Jun 2006 Location: MD iTrader: (29)	i had a borla catback system on my rx8... favorite mod by all means. it was noticeably louder, but subtle at the same time (if that makes any sense). it truely brought out the low rumble from the engine, and sounded fantastic. If i hadn't got my eisenmann, i would've looked a lot more into the borla exhaust system for my e90.
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12-13-2007, 04:38 PM	#8
Chio Captain 147 Rep 602 Posts Drives: G80 M3 Cp, x7 M60 Join Date: Oct 2006 Location: STL iTrader: (1)	worth the $
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12-20-2007, 01:34 PM	#9
moparfan74 Registered 0 Rep 2 Posts Drives: M5 Join Date: Dec 2007 Location: SEA, WASH iTrader: (0)	I love my borla system, I got mine from goborla.com http://www.goborla.com/product.php?productid=336763?twg
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12-20-2007, 01:39 PM	#10
wj4 Major General 358 Rep 7,719 Posts Drives: E90 manual 335i Join Date: Nov 2006 Location: Burbank, CA iTrader: (8)	I believe member AK tek 818 removed the 2ndary cats when he installed his Borla catback exhaust and he loves it!
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12-21-2007, 12:18 AM	#11
Don Nguyen Banned 72 Rep 1,334 Posts Drives: '99 M3 Vert, '95 M3 Coupe, 964 Join Date: Apr 2006 Location: Irvine, CA iTrader: (4)	Def worth the money. -Don
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