Exhaust/Intake?

norcal · 05-16-2008, 11:23 AM

I have decided to not go with the Dinan upgrade after reading through the forum about how many people say that they only really feel the difference in the higher RPM's. Soooooo my question is should I install cold air intake prior to Borla exhaust? Does it really matter which one I decide to go with first? I can only afford 1 at a time right now. ANY INPUT???

07 335i Coupe

Driver72 · 05-16-2008, 11:36 AM

Intake is not necessary on stock tune.
Borla axleback will give you about 10 hp and a nice deeper sound.
Save the money on the intake unless you go with an aggressive tune.
Plus dealers won't care much about an axleback exhaust warranty wise but intakes are always a bit sketchy in that regard

Curt2000 · 05-16-2008, 12:01 PM

SSTT...then cold air intake, then exhaust

Driver72 · 05-16-2008, 03:33 PM

Again, CAI not really needed on basic tunes.
You'll only see minimum hp gains from them on tunes making less than 350 rwhp on dynojets.
A drop in filter alone seems to give 1-3 rwhp and would be a better choice unless you plan on going with a more aggressive tune than SSTT, JB2, etc.

Plus again, a CAI can, and will draw negative attention from some (though not most) dealer service people. And COULD be used as a warranty voiding component. Technically so could a drop in filter, but I don't know of a single dealer from ANY manufacturer who has voided a warranty for a drop in.
CAI just not worth the hassle/cost for a few ponies gain on a car without an aggressive tune.

06RedGoat · 05-16-2008, 04:13 PM

Quote:

Originally Posted by Driver72

Intake is not necessary on stock tune.
Borla axleback will give you about 10 hp and a nice deeper sound.
Save the money on the intake unless you go with an aggressive tune.
Plus dealers won't care much about an axleback exhaust warranty wise but intakes are always a bit sketchy in that regard

What about catback exhausts? I'd imagine it would be about the same.

cwn23 · 05-16-2008, 04:17 PM

I like UR CAI it looks pretty and functionable as well

e90AW335i · 05-16-2008, 08:31 PM

Quote:

Originally Posted by cwn23

I like UR CAI it looks pretty and functionable as well

Sounds like a guy I used to know....

cwn23 · 05-16-2008, 08:35 PM

Quote:

Originally Posted by e90AW335i

Sounds like a guy I used to know....

lol what u u mean!

e90AW335i · 05-16-2008, 08:38 PM

Quote:

Originally Posted by cwn23

lol what u u mean!

hun77777 · 05-16-2008, 08:41 PM

I'd like to know if exhaust could be a cause to void warranty as well. As I got rear ended and am looking to replace to aftermarket exhaust instead of oem replacement...

05-16-2008, 11:23 AM	#1
norcal Norcal3 0 Rep 4 Posts Drives: 07 BMW 335i coupe sport pk Join Date: May 2008 Location: Reno, NV iTrader: (0)	Exhaust/Intake? I have decided to not go with the Dinan upgrade after reading through the forum about how many people say that they only really feel the difference in the higher RPM's. Soooooo my question is should I install cold air intake prior to Borla exhaust? Does it really matter which one I decide to go with first? I can only afford 1 at a time right now. ANY INPUT??? 07 335i Coupe
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05-16-2008, 11:36 AM	#2
Driver72 Brigadier General 327 Rep 4,484 Posts Drives: 335i - to new owners now. Join Date: Dec 2006 Location: California iTrader: (0)	Intake is not necessary on stock tune. Borla axleback will give you about 10 hp and a nice deeper sound. Save the money on the intake unless you go with an aggressive tune. Plus dealers won't care much about an axleback exhaust warranty wise but intakes are always a bit sketchy in that regard
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05-16-2008, 12:01 PM	#3
Curt2000 Brigadier General 1013 Rep 3,157 Posts Drives: '93 Supra Turbo Join Date: Jun 2007 Location: Washington D.C. iTrader: (25)	SSTT...then cold air intake, then exhaust __________________ Former Car: '16 SUNBURST GOLD F80 ///M3--6MT/Carbon Cloth (ED Thread) Former Car:'13 SANTORINI BLUE E92///M3--6MT/Speed Cloth/ZCP(ED Thread) INSTAGRAM:@C2KMotorsports
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05-16-2008, 03:33 PM	#4
Driver72 Brigadier General 327 Rep 4,484 Posts Drives: 335i - to new owners now. Join Date: Dec 2006 Location: California iTrader: (0)	Again, CAI not really needed on basic tunes. You'll only see minimum hp gains from them on tunes making less than 350 rwhp on dynojets. A drop in filter alone seems to give 1-3 rwhp and would be a better choice unless you plan on going with a more aggressive tune than SSTT, JB2, etc. Plus again, a CAI can, and will draw negative attention from some (though not most) dealer service people. And COULD be used as a warranty voiding component. Technically so could a drop in filter, but I don't know of a single dealer from ANY manufacturer who has voided a warranty for a drop in. CAI just not worth the hassle/cost for a few ponies gain on a car without an aggressive tune.
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05-16-2008, 04:17 PM	#6
cwn23 Major 23 Rep 1,142 Posts Drives: E92 Join Date: May 2007 Location: USA iTrader: (0)	I like UR CAI it looks pretty and functionable as well
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05-16-2008, 08:41 PM	#10
hun77777 Brigadier General 198 Rep 4,647 Posts Drives: SG E92 Join Date: Nov 2007 Location: Seattle WA iTrader: (58)	I'd like to know if exhaust could be a cause to void warranty as well. As I got rear ended and am looking to replace to aftermarket exhaust instead of oem replacement...
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