Some exhaust manifold info. - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat

2000-2005 Discuss your 2000-2005 Bonneville SE, SLE, and SSEi Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Thread Tools Search this Thread
Old 06-23-2005, 02:01 PM   #1
Senior Member
Posts like a Turbo
Thread Starter
Join Date: May 2005
Location: Stockton, CA
Posts: 251
Thanks: 0
Thanked 0 Times in 0 Posts
hvactech is on a distinguished road
Default Some exhaust manifold info.

As most of you already know, the rear manifolds on a Bonneville are different then on Grand Prix etc. I knew that and made sure I got Bonneville manifolds. Well I picked up some ported manifolds off of a '99 Bonneville for my '03. Went to install them and went to bolt up the rear flange, turns out my rear flange and downpipe are larger then the '99'*. My guess is they changed the exhaust around when they chnaged the model in 2000. There'* no way to make it fit. I will use my stock rear manifold ( I'll polish it a little) and use the ported front one. It looks like it will fit ok. Just thought I would let you all know so you won't make the same mistake.
hvactech is offline   Reply With Quote
Old 06-23-2005, 09:24 PM   #2
Senior Member
Certified GM nut
Join Date: Jul 2003
Location: Chicagoland
Posts: 1,712
Thanks: 0
Thanked 0 Times in 0 Posts
TaylorD is on a distinguished road

I got Togs won't be an issue for me
TaylorD is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Critical L36 Upper Intake Manifold Info....for 2000+ owners willwren General GM Chat 37 04-16-2007 04:38 PM
93 exhaust manifold.... same for NA and SC? Jim 1992-1999 0 09-01-2003 03:01 PM
Can OEM exhaust manifold crack be repaired? billha 1992-1999 10 08-08-2003 10:47 PM
New exhaust from the manifold back merlin Performance, Brainstorming & Tuning 9 06-06-2003 06:21 PM
info on driver info center and compass wiring bonnieboy23 General GM Chat 3 02-28-2003 02:08 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -4. The time now is 04:03 PM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.