Bought headers and cat, now to the muffler shop

Reply Subscribe

Thread Tools

Search this Thread

Nov 15, 2004 | 12:28 PM

fanatic

Thread Starter

Junior Member

Joined: Nov 2002

Posts: 121

Likes: 0

From: The Woodlands, TX, US

Bought headers and cat, now to the muffler shop

Ok, I just bought me a Comptech 4-2-1 header along with a carsound catalytic converter. Now, I plan on installing this myself (any tips would be appreciated), but I know I'll need some flanges to connect everything. What do I need to ask the muffler shop to make in order to connect everything together?

Nov 15, 2004 | 12:44 PM

sPaRk'iT

Member

Joined: Feb 2003

Posts: 2,446

Likes: 0

From: Bay Area/Fresno, Ca, USA

Re: Bought headers and cat, now to the muffler shop (fanatic)

You just answer your question, tell them to put flage on them.

Modified by sPaRk'iT at 10:01 PM 11/15/2004

Nov 15, 2004 | 12:51 PM

xprohx

I think too much

Joined: Sep 2003

Posts: 1,400

Likes: 0

From: NW

Re: Bought headers and cat, now to the muffler shop (sPaRk'iT)

I bought my carsound already with all the flanges. 2-bolt flange to connect to header, and 3-bolt flange to connect to b-pipe of exhaust.

Nov 15, 2004 | 01:23 PM

aeon

Honda-Tech Member

Joined: Dec 2003

Posts: 2,426

Likes: 1

From: ca

yeah all you need is the flanges welded on and then maybe some new donut gaskets.

Nov 15, 2004 | 03:32 PM

a1320addict

Honda-Tech Member

iTrader: (1)

Joined: Sep 2004

Posts: 9,639

Likes: 0

From: NJ

Re: (aeon)

i got them comptechs.....good choice on quality part.....it bolted up fine to my stock cat...which im going to replace soon....but i do know the copmtech header has a 2.5 inch collector

Nov 15, 2004 | 03:43 PM

Two_K Si

Joined: Dec 2001

Posts: 781

Likes: 1

From: Southern, California

Re: (yehiknowrite)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by yehiknowrite »</TD></TR><TR><TD CLASS="quote">i got them comptechs.....good choice on quality part.....it bolted up fine to my stock cat...which im going to replace soon....but i do know the copmtech header has a 2.5 inch collector</TD></TR></TABLE>

The comptech street header does not have a 2.5 inch collector.

Nov 15, 2004 | 03:49 PM

stumpyf4

Honda-Tech Member

Joined: Jul 2002

Posts: 1,445

Likes: 1

From: Mrs. Sauga, Ontario, Canada

Re: (Two_K Si)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Two_K Si »</TD></TR><TR><TD CLASS="quote">

The comptech street header does not have a 2.5 inch collector.</TD></TR></TABLE>

Correct... it's got a 2" collector. Seems to work fine on a stock motor.

Trending Topics

Nov 15, 2004 | 03:57 PM

dFreezy

Honda-Tech Member

Joined: Jul 2002

Posts: 7,985

Likes: 1

From: Boston, MA

Re: (yehiknowrite)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by yehiknowrite »</TD></TR><TR><TD CLASS="quote">but i do know the copmtech header has a 2.5 inch collector</TD></TR></TABLE>

Nov 15, 2004 | 08:57 PM

a1320addict

Honda-Tech Member

iTrader: (1)

Joined: Sep 2004

Posts: 9,639

Likes: 0

From: NJ

Re: (dFreezy)

weird....the collector fit perfectly with a 2.5 inch test pipe

Nov 17, 2004 | 04:03 PM

#10

stumpyf4

Honda-Tech Member

Joined: Jul 2002

Posts: 1,445

Likes: 1

From: Mrs. Sauga, Ontario, Canada

Re: (yehiknowrite)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by yehiknowrite »</TD></TR><TR><TD CLASS="quote">weird....the collector fit perfectly with a 2.5 inch test pipe</TD></TR></TABLE>

If you used a 2.5" donut gasket then it didn't fit perfectly, the stock 2" donut gasket fits perfectly. Remeasure your testpipe next time... you need to measure the inside diameter of the pipe not outside diameter.