Results 1 to 16 of 16

yo....y pipe question

This is a discussion on yo....y pipe question within the External Engine forums, part of the LSx Technical Help Section category; I am installing headers this weekend and i plan on using a magnaflow merge and having the muffler shop make ...

  1. #1
    its short but its skinny. jiveass's Avatar
    Join Date
    Oct 2009
    Location
    The Woodlands/spring/houston
    Posts
    2,142

    pewter
    99 trans am

    yo....y pipe question

    I am installing headers this weekend and i plan on using a magnaflow merge and having the muffler shop make the rest instead of fooling with a full y pipe. they are ebay headers and the driver side header points toward the floor of the car, which is why i wanna have it custom made. the collectors are 3". I guess what i need to know is what size inlets/outlet i need to order.

  2. #2
    Moderator Firebirdjones's Avatar
    Join Date
    May 2006
    Location
    Arizona
    Posts
    12,552
    What do you mean what size inlet and outlet to order???

    If you are taking it to an exhaust shop to fab the Ypipe, they should have everything needed on hand.
    More than likely they use 3 inch pipe (I'd hope) and just swell it to slide over the collector (if that's the style you have).
    If it's flanged, they should have any style and size flange in stock to do the job.

  3. #3
    its short but its skinny. jiveass's Avatar
    Join Date
    Oct 2009
    Location
    The Woodlands/spring/houston
    Posts
    2,142

    pewter
    99 trans am

    Quote Originally Posted by Firebirdjones View Post
    What do you mean what size inlet and outlet to order???

    If you are taking it to an exhaust shop to fab the Ypipe, they should have everything needed on hand.
    More than likely they use 3 inch pipe (I'd hope) and just swell it to slide over the collector (if that's the style you have).
    If it's flanged, they should have any style and size flange in stock to do the job.
    i figure $27 for the merge pipe would be cheaper than them having to make one......i will just need them to make the pipe to go from the headers to the merge...heres a link to what im talkin about

    http://www.autoanything.com/exhausts...A2680A0A0.aspx

  4. #4
    Moderator Firebirdjones's Avatar
    Join Date
    May 2006
    Location
    Arizona
    Posts
    12,552
    Ah, my bad. I was thinking you already had the merge collector and you were asking about the header flanges.

    On the merge the inlets need to be 3 inch so the shop can simply run that size pipe from the collector to the merge. On the outlet it would depend on the current catback system you have.
    Some of them tend to neck down a bit right where the clamp goes on, but a 3 inch outlet can be made to work either way.

  5. #5
    its short but its skinny. jiveass's Avatar
    Join Date
    Oct 2009
    Location
    The Woodlands/spring/houston
    Posts
    2,142

    pewter
    99 trans am

    here are some pics of my current pipe that i will tie into...i dont think its factory because theres a cutout welded in there too .....excuse the bad angles






  6. #6
    Moderator Firebirdjones's Avatar
    Join Date
    May 2006
    Location
    Arizona
    Posts
    12,552
    Run a tape measure accross that and see what you have.

    That appears to be a factory style piece on the end where your band clamp goes just judging by the jagged slices in the pipe to allow the pipe to squeeze when the clamp is tightened. That's exactly how my factory catbacks are.

  7. #7
    Junior Member hippiespace's Avatar
    Join Date
    Apr 2008
    Location
    Ashburn Virginia
    Age
    37
    Posts
    65

    Navy Blue
    2013 ZL1

    Dude i Just put BBK LTs on my car last weekend. I took it to the shop and had them finish up the exhaust and put in a cut out. It was like $100 to finish it off. If your interested I have an extra 2 1/2" electric cut out I didn't us. I'm trying to sell it but with the new posting rules I can't post anything for sale yet on the site. The sound is awesome as raw as it gets. Or as quiet as stock at the flip of a switch.

  8. #8
    Senior Member Lunatikgixxer's Avatar
    Join Date
    Mar 2010
    Location
    St Pete, FL
    Posts
    1,429

    Bat mobile black
    2000 Trans am WS6 M6

    Your rear end is leaking lol

  9. #9
    its short but its skinny. jiveass's Avatar
    Join Date
    Oct 2009
    Location
    The Woodlands/spring/houston
    Posts
    2,142

    pewter
    99 trans am

    Quote Originally Posted by Lunatikgixxer View Post
    Your rear end is leaking lol
    surprising, isnt it? lol....yea the car has a few issues that need to be worked out....as they usually do..

  10. #10
    Senior Member Lunatikgixxer's Avatar
    Join Date
    Mar 2010
    Location
    St Pete, FL
    Posts
    1,429

    Bat mobile black
    2000 Trans am WS6 M6

    Quote Originally Posted by jiveass View Post
    surprising, isnt it? lol....yea the car has a few issues that need to be worked out....as they usually do..
    Its probably just the common leak and a new rear end cover would fix it.. Thats what fixed mine!

  11. #11
    megs 02sunsetorangeZ's Avatar
    Join Date
    Mar 2007
    Location
    Decatur Tx
    Posts
    1,167

    sunset orange
    2002 Camaro Z28

    looks to be a pinion seal maybe?

  12. #12
    Senior Member
    Join Date
    Jan 2010
    Location
    texas
    Posts
    1,621

    silver
    2000 formula

    is there a rear end that DOES not leak???

  13. #13

  14. #14
    Veteran Blackbird WS6's Avatar
    Join Date
    Jun 2008
    Location
    van down by the river
    Posts
    1,937
    Quote Originally Posted by 02sunsetorangeZ View Post
    looks to be a pinion seal maybe?
    this

  15. #15
    its short but its skinny. jiveass's Avatar
    Join Date
    Oct 2009
    Location
    The Woodlands/spring/houston
    Posts
    2,142

    pewter
    99 trans am

    so i took the motor mount and pedastal out and test fit the header....looks like i may need to grind the k member a little...ground clearance looks spectacular....will be taking the clam shells apart and installing prothane mounts...

  16. #16
    Member bberretta's Avatar
    Join Date
    Aug 2009
    Location
    Memphis, TN
    Posts
    665

    Bright Red
    2000 TA Firehawk 0041/742

    Quote Originally Posted by sjsingle1 View Post
    is there a rear end that DOES not leak???
    Yep. A brand new one.

    Since that's the stock i-pipe I think the connection is 2.75 inches but you need to measure just to be sure. While you're having them fab up the Y, you might as well see if they can fab up a larger I-pipe since that is going to be one of the most restrictive points in your exhaust. My SLP 2-1-2 actually shrinks to 2.75" where the merge meets the I-pipe and then expands back to 3" just after the clamp.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. QTP y-pipe question
    By dummybait in forum External Engine
    Replies: 5
    Last Post: 03-24-2011, 06:25 PM
  2. Question: Y-Pipe Question
    By Ironwolf in forum External Engine
    Replies: 9
    Last Post: 03-02-2010, 09:06 AM
  3. TSP Y-pipe question???
    By lvbroham1 in forum External Engine
    Replies: 9
    Last Post: 06-07-2009, 07:41 PM
  4. Help: Y-pipe question
    By chevyboy82188 in forum Camaro / SS
    Replies: 2
    Last Post: 04-28-2008, 07:34 AM
  5. Y-pipe question
    By NE98LS1 in forum External Engine
    Replies: 6
    Last Post: 01-30-2006, 09:08 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •