1999 Trans Am Pace Setter headers

nightriderLS1 · 01-29-2006, 02:04 PM

I was wondering if anyone has installed a set of long tube pace setters on their 98-99 ls1. I have a 99 trans am and the long tube headers, but no clue where to start. Can anyone help me with an installation walk through or any tips? Thanks

**90nova** · 01-31-2006, 03:35 PM

I just installed pacesetter long tubes on my 99 ss. The hardest part was getting the old manifolds and y pipe off the car. Definately spray all bolts with some wd or pb blaster. I removed the egr and air lines from the old manifolds and passenger side coil packs for access. I didn't have to pull the spark plugs, but if its been a while this is a good time to change them. I also used jack stands in a garage, just be careful while under the car. Pacesetters fit great, I didn't have any clearance problems, just get the car high enough to fit them in from the bottom. When removing the old manifolds on the passenger side I had to use a box wrench and slip a large deep socket with an extension as a handle for enuff leverage to break the rear bolts loose. I would also recommend buying 24" o2 extensions for the drivers side. It took me about 9hrs to complete. Good luck on your install.

nightriderLS1 · 01-31-2006, 05:13 PM

thanks for replying, how high did you have to get the car on jackstands?
I think the o2 extenders came with the headers.

**90nova** · 01-31-2006, 05:23 PM

I left the jack stand at the lowest pin height putting the front up first and then the back. When it was time to slip the headers in I jacked the front up higher leaving the back on the jack stands. Probably about two feet I put a ramp under the front wheels for safety in case the jack went down while I was underneath. Once I got the headers in I lowered the front back on the jack stands in the front.