Header Install

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Mar 6, 2012 | 09:06 PM

edusmc1

Thread Starter

Instructor

Joined: Apr 2009

Posts: 175

Likes: 12

From: Jacksonville NC

Header Install

Completed header install today and looks and sounds good, car runs and idles great. Noticed when driving and on take off pressing the gas slow and easy I hear sucking noise that seems louder than with the stock exhaust. Not sure if this is normal or not, I went back and checked to see if I left anything disconnectec but all looks good.

edusmc124
USMC 28 yrs Active

Mar 6, 2012 | 09:20 PM

04C5-in-MD

Cruising

Joined: Oct 2011

Posts: 14

Likes: 0

If you can hear anything over the exhaust boom you need a new exhaust. LOL.

Mar 6, 2012 | 09:39 PM

m6 c5

Melting Slicks

Joined: Jun 2010

Posts: 2,809

Likes: 3

From: Yorktown Virginia

I dont think you should hear a sucking noise, that would tend to be associated with a new intake.

Mar 7, 2012 | 06:30 AM

kmetros

Racer

Joined: Jul 2008

Posts: 293

Likes: 8

From: South Bend IN

Quote:

Originally Posted by m6 c5

I dont think you should hear a sucking noise, that would tend to be associated with a new intake.

Since you just removed a bunch of stuff it is possible that something was left disconnected. Did you remove the intake? Could be one of the vacuum lines on the back of the intake didn't get reconnected?

Also remember that the walls of the headers are much thinner than the cast exhaust manifolds that came off of there. Headers are known to be a bit 'noisier' than a stock exhaust system - meaning you will hear more noises than you did before, even when you change nothing else.....they are all sounds that were there, but were masked by the heavy manifolds.

Mar 7, 2012 | 09:31 AM

bumble-z

Le Mans Master

Joined: May 2007

Posts: 5,393

Likes: 17

From: Belleville Mich.

Which manufacture of header, used?
Which exhaust header gaskets were used?

Air pump disconnected or rebolted to headers? Possible air leak at the connections/gaskets?