Exhaust Post your questions and suggestions about stock or aftermarket exhaust setups. Third Gen exhaust sound files and videos!

4” Oval Boom Tubes

Thread Tools
 
Search this Thread
 
Old Oct 3, 2021 | 07:19 PM
  #1  
RoadRace's Avatar
Thread Starter
Junior Member
5 Year Member
Liked
Loved
 
Joined: May 2017
Posts: 63
Likes: 3
From: CANADA
Car: 85 IROC
Engine: 5.7
Transmission: T56
Axle/Gears: 4.11 torsen, 4th gen rear
4” Oval Boom Tubes

Hey. Just thought I’d post a few pics. I hacked together a dual side exit system for my car.
i got a “nascar style” boom tube system from a really cool dude in Sparta, TN - he shipped to me up here in Canada so he was great to deal with. It was 4”’oval and had an X pipe and he has more pipes as well.
hard part was fitting it to the EBay cheap-o headers. I put up a few notes about installing them in my car (with a T56) on the eBay headers post.

I cut the extension tubes that came with the headers then sectioned the oval pipes to mate in them, and welded together. The boom tube system came 9” too wide for the 3rd Gen collectors and I had to cut and section them to fit the width of the long tube headers.
i then took the boom tubes themselves and mitre cut them so they exited the way I wanted.

it was a bit of planning and then of course a lot of time on the cardboard lol!

and it sounds pretty darn good:
https://youtu.be/HUNZqYPWJ0I




Note where I cut the pipes and put in an angle to fit the collector width

I flattened the tube a bit so it fit in the oval bit

It ain’t going to be pretty. More work is required to get it proper

Made a transition on the oval pipe itself by cutting a wedge out of it

Stage 1, getting the X pipe to fit on the collectors.

Stage 2, fitting the boom tubes to the X pipe/collector assembly.

It’s finally in position! I’m ok with how it worked out. It’s not perfect but it will work as intended


Painted with high heat paint and ready for installation

Last edited by RoadRace; Oct 17, 2021 at 09:17 PM. Reason: Add content
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ronnieessary40
Exhaust
2
Mar 11, 2017 01:18 PM
fast377
LTX and LSX
7
Oct 11, 2010 07:58 AM
LilJayV10
Exhaust
28
Aug 23, 2008 09:24 PM
camaro590
Exhaust
20
Feb 26, 2008 07:06 PM
formulazz4ws6
Exhaust
1
Jan 29, 2007 10:51 AM




All times are GMT -5. The time now is 08:31 AM.