Header & Exhaust first? or Intake and Exhaust first?

chriscj99 · 10-30-2007, 11:12 PM

Ok,
So I have a 07 civic Si and I'm debating whether I should do a DC sport header and Greddy Evo2 catback first, or if I should do an Injen intake and Greddy Evo2 catback. What do you guys think??

Also, is there a SIGNIFICANT difference between the short ram intake and cold air intake? I'm sure the short ram can be done in about 5 minutes and the cold air takes a couple hours since you have to remove the front bumper. Just curious if it makes THAT much of a difference. Thanks!

**ErichPryde** · 10-30-2007, 11:59 PM

get a DC header and Evo2 first, read most of the threads on this site pertaining to the power gains from SRIs and CAIs, and then decide on what intake you want. while you're doing that you could spend 45 dollars on a K&N drop in filter if you wanted.
the injen CAI will make you run rich, the fujita SRI will make you run lean, and I don't know how the K&N SRI makes you run. there IS power to be gained from either intake.

**ErichPryde** · 10-31-2007, 12:01 AM

start here:
keeping track ... mods + dyno numbers

***xxbodkinxx*** · 10-31-2007, 12:18 AM

Intake+header 1st imo. Exhaust will net you the least gains out of all 3.

cation · 10-31-2007, 12:22 AM

Header then intake... reflash if you want to send your ECU off and dump $600... exhaust if you want to make noise when you drive.

ibanez37 · 10-31-2007, 10:31 AM

DCRH + X's intake. Best bang for the buck.

spocheld · 10-31-2007, 03:51 PM

I would go intake first, exhaust second, and header third, just my $0.02.

***Whocares05050*** · 10-31-2007, 03:56 PM

Quote:

Originally Posted by ErichPryde

get a DC header and Evo2 first, read most of the threads on this site pertaining to the power gains from SRIs and CAIs, and then decide on what intake you want. while you're doing that you could spend 45 dollars on a K&N drop in filter if you wanted.
the injen CAI will make you run rich, the fujita SRI will make you run lean, and I don't know how the K&N SRI makes you run. there IS power to be gained from either intake.

And the AEM SRI?

***Freq18hz*** · 10-31-2007, 05:25 PM

Quote:

Originally Posted by chriscj99

Ok,
So I have a 07 civic Si and I'm debating whether I should do a DC sport header and Greddy Evo2 catback first, or if I should do an Injen intake and Greddy Evo2 catback. What do you guys think??

Also, is there a SIGNIFICANT difference between the short ram intake and cold air intake? I'm sure the short ram can be done in about 5 minutes and the cold air takes a couple hours since you have to remove the front bumper. Just curious if it makes THAT much of a difference. Thanks!

Keep the stock exhaust, it is plenty high flow. Get the header, forget the intake.

-Freq

Jardiniboy · 10-31-2007, 05:50 PM

DCRH and exhaust. And the TB spacer+ gaskets.

seans-fbp-si · 10-31-2007, 05:55 PM

header and exhaust first. the oem intake is awesome

cation · 10-31-2007, 09:19 PM

Quote:

Originally Posted by ibanez37

DCRH + X's intake. Best bang for the buck.

QFT!!!!

chriscj99 · 11-24-2007, 01:16 PM

I actually ended up going with a Fujita SRI and the Greddy Evo2 exhaust....

chriscj99 · 11-24-2007, 01:17 PM

And they are BOTH up for sale now!!! haha. I think I may be getting rid of the car already. Any takers???

**ErichPryde** · 11-24-2007, 01:55 PM

Quote:

Originally Posted by Whocares05050

And the AEM SRI?

I don't know anything about the AEM SRI. there's an 8th member in my area with one on his car, and I was planning on doing some dynoing early next year. Maybe I can drag him along and see what it does.

I was planning on comparing a couple of different intake options...

***Whocares05050*** · 11-24-2007, 03:46 PM

Quote:

Originally Posted by chriscj99

And they are BOTH up for sale now!!! haha. I think I may be getting rid of the car already. Any takers???

Why?

***sh33t_0f_p4p3r*** · 11-24-2007, 03:51 PM

x intake from what i see, thats what im going to get when i got the mula

GlxyGry06Si · 11-24-2007, 03:54 PM

Quote:

Originally Posted by ibanez37

DCRH + X's intake. Best bang for the buck.

yes this is the best for performance.

Quote:

Originally Posted by spocheld

I would go intake first, exhaust second, and header third, just my $0.02.

^^y. that is the exact opposite if you want performance.

Dc Header
X intake
p2r spacer and gaskets
then exhaust

k20beast · 11-24-2007, 05:37 PM

Quote:

Originally Posted by ibanez37

DCRH + X's intake. Best bang for the buck.

id do what he said for sure... best thing you can do. then i would go with reflash after that.

craiger · 04-13-2008, 08:34 PM

intake and header is what i would do, while the bolts are still fresh and not all rusted up depending on where you live.

10-30-2007, 11:12 PM	#1 (permalink)
chriscj99 Member Join Date: Oct 2007 Posts: 42 iTrader: 1 / 100%	Header & Exhaust first? or Intake and Exhaust first? Ok, So I have a 07 civic Si and I'm debating whether I should do a DC sport header and Greddy Evo2 catback first, or if I should do an Injen intake and Greddy Evo2 catback. What do you guys think?? Also, is there a SIGNIFICANT difference between the short ram intake and cold air intake? I'm sure the short ram can be done in about 5 minutes and the cold air takes a couple hours since you have to remove the front bumper. Just curious if it makes THAT much of a difference. Thanks!

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10-30-2007, 11:59 PM	#2 (permalink)
ErichPryde I am Ninja Bird Join Date: Jun 2007 Location: Wichita Age: 25 Posts: 5,147 Erik iTrader: 7 / 100%	get a DC header and Evo2 first, read most of the threads on this site pertaining to the power gains from SRIs and CAIs, and then decide on what intake you want. while you're doing that you could spend 45 dollars on a K&N drop in filter if you wanted. the injen CAI will make you run rich, the fujita SRI will make you run lean, and I don't know how the K&N SRI makes you run. there IS power to be gained from either intake.

10-31-2007, 12:01 AM	#3 (permalink)
ErichPryde I am Ninja Bird Join Date: Jun 2007 Location: Wichita Age: 25 Posts: 5,147 Erik iTrader: 7 / 100%	start here: keeping track ... mods + dyno numbers

10-31-2007, 12:18 AM	#4 (permalink)
*xxbodkinxx* VIP Member Join Date: Jun 2007 Posts: 979 iTrader: 0 / 0%	Intake+header 1st imo. Exhaust will net you the least gains out of all 3.

10-31-2007, 12:22 AM	#5 (permalink)
cation Senior Member Join Date: Jun 2007 Location: TN Posts: 1,778 iTrader: 8 / 100%	Header then intake... reflash if you want to send your ECU off and dump $600... exhaust if you want to make noise when you drive.

10-31-2007, 10:31 AM	#6 (permalink)
ibanez37 Senior Member Join Date: Jan 2007 Location: Chandler, AZ Age: 23 Posts: 1,999 Blake iTrader: 2 / 100%	DCRH + X's intake. Best bang for the buck.

10-31-2007, 03:51 PM	#7 (permalink)
spocheld Senior Member Join Date: Sep 2006 Location: Fresno, CA Age: 25 Posts: 1,338 Jeff iTrader: 2 / 100%	I would go intake first, exhaust second, and header third, just my $0.02.

10-31-2007, 05:50 PM	#10 (permalink)
Jardiniboy Senior Member Join Date: Jan 2007 Location: Waipahu, Hawaii Posts: 3,817 Jasten iTrader: 2 / 100%	DCRH and exhaust. And the TB spacer+ gaskets.

10-31-2007, 05:55 PM	#11 (permalink)
seans-fbp-si Senior Member Join Date: Apr 2007 Location: Raynham, MA Age: 23 Posts: 823 Sean iTrader: 0 / 0%	header and exhaust first. the oem intake is awesome

11-24-2007, 01:16 PM	#13 (permalink)
chriscj99 Member Join Date: Oct 2007 Posts: 42 iTrader: 1 / 100%	I actually ended up going with a Fujita SRI and the Greddy Evo2 exhaust....

11-24-2007, 01:17 PM	#14 (permalink)
chriscj99 Member Join Date: Oct 2007 Posts: 42 iTrader: 1 / 100%	And they are BOTH up for sale now!!! haha. I think I may be getting rid of the car already. Any takers???

11-24-2007, 03:51 PM	#17 (permalink)
*sh33t_0f_p4p3r* Ears bleed at 70mm Join Date: Jan 2007 Location: North Port, Florida Age: 22 Posts: 2,863 Tobie iTrader: 1 / 100%	x intake from what i see, thats what im going to get when i got the mula

04-13-2008, 08:34 PM	#20 (permalink)
craiger Junior Member Join Date: Jun 2007 Location: Saukville,Wisconsin Age: 25 Posts: 12 Craig iTrader: 0 / 0%	intake and header is what i would do, while the bolts are still fresh and not all rusted up depending on where you live.