Exhaust questions.

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Jul 28, 2004 | 03:03 PM

John D.

Thread Starter

Burning Brakes

Joined: Jun 2002

Posts: 932

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From: Lyons IL

Exhaust questions.

Thinking of changing my stock exhaust on my 71 to Long tube headers with chambered exhaust. (Wife does not like side pipes). Header tubes come with both 2" and 2.5" adapters. I would like to go with the 2.5" system but does that mean I would have to replace my brand new chrome exhaust tips which are stock and 2"????????

Jul 28, 2004 | 03:15 PM

tom_red_76

Instructor

Joined: Mar 2003

Posts: 102

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From: Taft CA

Hello, i just did all that to my 71. i went with hooker supercomp with the midamerica 2.5" chamberd system for headers. that system will you your stock tips becouse it drops to 2" at the end for easy fit. If you go with this you will be super happy, i really love the sound of my car now it sounds like a vette should. it is kinda loud but i can have a conversation if i speak up alittle.

-Tom-

Jul 28, 2004 | 04:28 PM

John D.

Thread Starter

Burning Brakes

Joined: Jun 2002

Posts: 932

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From: Lyons IL

Thanks Tom, A

lso thanks for letting me know the sound is going to be nice.

Jul 28, 2004 | 04:38 PM

Corey_68

Team Owner

Joined: Feb 1999

Posts: 34,455

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From: Republic of Texas

If sound is what you're lacking you'll LOVE the chambered pipes.

Jul 28, 2004 | 05:29 PM

tom_red_76

Instructor

Joined: Mar 2003

Posts: 102

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From: Taft CA

Quote:

Originally Posted by Corey_68

If sound is what you're lacking you'll LOVE the chambered pipes.

Yep the sound is really good. i know im happy.

-Tom-

Jul 28, 2004 | 05:56 PM

Gordonm

Race Director

Joined: Dec 1999

Posts: 19,610

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From: Forked River NJ

I have a 2 1/2 system all the way back. I had them pull out the 2 inch pipe in the tips and weld in a 2 1/2 pipe. Looks stock but is 2 1/2 all the way through.

Jul 28, 2004 | 08:31 PM

John D.

Thread Starter

Burning Brakes

Joined: Jun 2002

Posts: 932

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From: Lyons IL

Thank you all for your input.

Jul 28, 2004 | 10:59 PM

flynhi

Le Mans Master

Joined: Aug 2000

Posts: 6,273

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From: Austin TX

Do your homework and match the primary size and tube length to the typical rpm range that you use.

I ran 2.5" mandrel bend pipes and opened up the chrome tips to accept the full diameter.

Be aware that chambered pipes reduce the effective diameter of the pipes thus increasing backpressure.