Welcome to the North American Subaru Impreza Owners Club Wednesday October 22, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Normally Aspirated Powertrain

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 09-21-2004, 12:00 AM   #1
cjfike
Scooby Newbie
 
Member#: 60116
Join Date: Apr 2004
Location: (ab)Normal IL
Vehicle:
1999 RS Coupe
Silver Thorn

Question 2.2 Borla Headers - Rattle LOUD = bad.

I bought these headers from a fellow enthusist here at this site.

Bolt up real neatly. New gaskets on flanges and after 'Y'.

I start the engine, and when it catches the headers >CLANK<. Then it just stops at around 600 RPM. Sure did wake me up though. I haven't heard a clank like that since the clutch fragmented in my '70 cuda.

There are several RPM ranges it just rattles. RATTLES. No leaks that I can find.

Are Borla Headers <= Goose Poop?

Anyone used Fiber gaskets with these? Anyone know where to get fiber gaskets to try?
* Registered users of the site do not see these ads.
cjfike is offline   Reply With Quote
Old 09-21-2004, 08:22 AM   #2
todnar
Scooby Newbie
 
Member#: 24915
Join Date: Sep 2002
Location: KC
Vehicle:
2000 L Wagon Aspen
93 L Wagon Aqua

Default

Don't know of the clank you speak of.I had them on my 2.2 and the headers made the cats rattle(metallic noise).Got much worse when I installed a Hi-Flow Cat.Ended up taking the headers off because it was so annoying.

-Tod
todnar is offline   Reply With Quote
Old 09-21-2004, 09:01 AM   #3
cjfike
Scooby Newbie
 
Member#: 60116
Join Date: Apr 2004
Location: (ab)Normal IL
Vehicle:
1999 RS Coupe
Silver Thorn

Default

I don't know if it is the flanges and the studs, or the movement of the engines on the initial moment it starts. But there is a clank when it starts.

Yes, these babies are headed for the for sale cheap aisle.
cjfike is offline   Reply With Quote
Old 09-21-2004, 10:15 AM   #4
Nicklbrso
Scooby Specialist
 
Member#: 44887
Join Date: Oct 2003
Chapter/Region: NESIC
Location: ME
Vehicle:
00 GC6
Silver

Default

I had the same thing happen on my old L with the Borlas that todnar is speaking of. At certain RPM's you would hear this metallic rattle noise. It must have been the cat.
Nicklbrso is offline   Reply With Quote
Old 09-21-2004, 11:03 AM   #5
todnar
Scooby Newbie
 
Member#: 24915
Join Date: Sep 2002
Location: KC
Vehicle:
2000 L Wagon Aspen
93 L Wagon Aqua

Default

When I put the stock manifold back on with the Hi-Flow Cat the metallic noise went away.
Right now I'm running stock manifold,Cobb's Hi-Flow cat and a Cobb cat-back.
Now the drone is annoying,which there wasn't one with the Borla and Cobb's stuff.
That metallic noise is just plain wrong but that's the way it is.
todnar is offline   Reply With Quote
Old 09-21-2004, 12:06 PM   #6
Slack
Scooby Specialist
 
Member#: 17548
Join Date: Apr 2002
Location: Atlanta, Ga
Default

I have the headers for my L and they make the rattling noise. The welds at the collector keep cracking and leaking. I am sick of my car sounding like crap and I'll be replacing them with some stock headers if I can find any.


Mick
Slack is offline   Reply With Quote
Old 09-21-2004, 12:37 PM   #7
Jejunum
Scooby Specialist
 
Member#: 15773
Join Date: Feb 2002
Chapter/Region: MWSOC
Location: Madison
Vehicle:
2011 Impreza WRX
Silver

Default

you think it could be a piece of the heat shield rattling. when i put my borlas on i bent the crap outta one of the heat shields on the cat (near the junction of the headers and cat) and it rattled until i bent it down.
Jejunum is offline   Reply With Quote
Old 09-21-2004, 01:21 PM   #8
cjfike
Scooby Newbie
 
Member#: 60116
Join Date: Apr 2004
Location: (ab)Normal IL
Vehicle:
1999 RS Coupe
Silver Thorn

Default

When the engine is idling, the front cat oscillates (up or down) about 1 ~ 3 cm.

@1000 rpm the oscillation stops till about 1700 rpm and it comes back but not as dramatically.

Since the front CAT design takes the exhaust and redirects towards the rear of the car (basically a 90 degree turn), it must have something to do with the rigidity or lack of rigidity between the stock manifold pipe and the header.

I don't know. It is coming off as soon as it is cool to the touch.
cjfike is offline   Reply With Quote
Old 09-21-2004, 03:30 PM   #9
DreddRS25
Scooby Specialist
 
Member#: 51642
Join Date: Dec 2003
Chapter/Region: TXIC
Location: San Antonio, Texas
Vehicle:
2001 Impreza RS
BRP

Default

I bought some borlas back about 2-3months ago from a fellow Leg GT owner. The headers bolted right up and fit well. However when coasting or engine braking I hear a metal *tack* sound, not quite a clank but still a metal slapping sound. It also rattles something down there when I fire it up. I reached under there and held onto one of the heatshields and the rattle went away. Though the metal *tack* sound I believe is coming from the connection of the header/cat. It is pretty annoying, but I feel as though it should be easy to rid of rather than swapping out the headers.
DreddRS25 is offline   Reply With Quote
Old 09-21-2004, 10:42 PM   #10
cjfike
Scooby Newbie
 
Member#: 60116
Join Date: Apr 2004
Location: (ab)Normal IL
Vehicle:
1999 RS Coupe
Silver Thorn

Default

Maybe since they are a different design, and I think on yours more pipes are involved it just isn't as severe.

1 to 3 CM oscillation is going to cause future issues such as metal fatigue. If I welded a brace from the cross member to the cat and manufactured some kind spring suspension it may reduce the oscillation to an acceptable level.

However, when I called Borla they did not really have anything to say but these are meant for off road use. Unfortunately I did not (and do not) see that in their ads.

Thank you for your offering!
cjfike is offline   Reply With Quote
Old 09-22-2004, 01:40 AM   #11
rabbitnutz
Scooby Guru
 
Member#: 51940
Join Date: Jan 2004
Chapter/Region: NESIC
Location: boobs?
Default

SELL ME HEADERS.... i will trade you my stock manifolds if you no longer have them. i want headers. they are poopie, remember?

sell them to me......

precious, precious headers.....

my precious.
rabbitnutz is offline   Reply With Quote
Old 09-22-2004, 07:53 AM   #12
cjfike
Scooby Newbie
 
Member#: 60116
Join Date: Apr 2004
Location: (ab)Normal IL
Vehicle:
1999 RS Coupe
Silver Thorn

Default $225 including shipping, squeasul.

Quote:
Originally Posted by rabitnutz
SELL ME HEADERS.... i will trade you my stock manifolds if you no longer have them. i want headers. they are poopie, remember?

sell them to me......

precious, precious headers.....

my precious.
I have put the stock back on. But thanks for the very generous offer.

$225.00 includes shipping, any special services for the delivery will be at your expense. MO only.
cjfike is offline   Reply With Quote
Old 09-22-2004, 05:14 PM   #13
rabbitnutz
Scooby Guru
 
Member#: 51940
Join Date: Jan 2004
Chapter/Region: NESIC
Location: boobs?
Default

PM sent for the preciouses.
rabbitnutz is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
2.5i - Borla headers - 2.5rs Catpipe - Catless midpipe - stromung Axleback Un0RiGiNaL Engine/Power/Exhaust 14 01-27-2010 02:03 PM
SoCal: 2.5L Borla Headers and Custom 2.5 Hi-Flow Catalytic Converter Section 555subaru Engine/Power/Exhaust 1 05-31-2007 03:22 PM
So. CAL 2.5RS Borla Header and 2.5" magnaflow CAT section 555subaru SCIC Private Classifieds 4 05-04-2007 01:35 PM
will 2.5L borla headers fit a 2.0L/2.2L impreza?? AliBenn Subaru Conversions 6 03-21-2006 01:42 PM
2.2L borla headers are waiting to go on... MPREZYA Normally Aspirated Powertrain 2 03-09-2001 09:57 PM


All times are GMT -4. The time now is 09:56 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.