Mikes Ls1

I know this has probably been asked a million times but I've done my research and am still unsure of what size headers/exhaust piping to get. I have a 1999 Trans am with a ws6 hood and airbox and a cat back other then that its stock. Right now I plan on doing an ls6 intake and full exhaust but later plan on going with some ported 243's and a Texas Speed 228R cam, 228/228 .600/.600 with a 112 lsa. I do not have to worry about emissions.

Im not sure if I should get 1 7/8 lt's or 1 3/4 lt's. I've read that 1 3/4 is good for bolt ons but if you start to modify more then you will want 1 7/8.

I do want to keep it on a budget. I've herd good things abot Speed Engineering's headers. I was looking at these 2 from them. Also found a set of BBK headers/Ypipe setup used for 300 plus shipping.
1 7/8 - http://www.speed-engineering.com/fea...e-version.html
1 3/4 - http://www.speed-engineering.com/sho...e-version.html
Used BBKs - http://www.summitracing.com/parts/bbk-1694

Also from the header back I'm not to sure if I should go to a Y-pipe or true duals with an X-pipe. Speed Engineering has a 3' ORY-pipe I can buy with the Longtubes. Texas speed has a 3" True Dual with X-pipe to bullet mufflers dumped.

ORY- http://www.speed-engineering.com/sho...e-version.html
True Duals - https://www.texas-speed.com/p-372-te...true-dual.aspx

Is anyone running any of these or know anything about them? Any help/advice is appreciated. Thanks

HCI2000SS

iTrader: (2)

Since you're on a budget of recommend the Speed Engineering 1 7/8 headers and ORY

ls1_299

I've had tsp true dual before and honestly it's too loud to drive it daily but it sounds way better than any y pipe set up.

bbond105

The new Hooker Blackheart True Dual stainless steel exhaust looks interesting at $706. Will need modifying if used with anything other than the Hooker 1-3/4" and 1-7/8" stainless steel mid-length headers, but doesn’t look like it would be hard to adapt to any long tube header.

Mikes Ls1

I think I'm going to go with the 1 7/8 longtubes now just need to decide on the True Duals or Y-pipe. I have an SLP Catback but whoever installed it used clamps but also tack welded it up and did a bad job at it. Thhe exhaust tips are uneven and it leaks around a couple of the clamps. I would have to take it somewhere and have them try to get it apart and weld it together the right way.

LT1BADZ

iTrader: (1)

What is the diameter of the Ypipe outlet after cutting off the reducer/part where it necks down? Is it possible to run a 3.5" bullet off it then?

spaz1

iTrader: (9)

It's 3" I welded a v band into it.