Headers and L6 intake advice please
Thread Starter
Race Director
Joined: Dec 2004
Posts: 13,760
Likes: 75
From: Haymarket VA
Headers and L6 intake advice please
We'll be installing Dynatech headers/cats/x-pipe and and L6 intake manifold on my 98 vert this weekend. Any tuning issues or will the PCM adjust for these changes. I'll be installing a H/C package later this summer and will have it dyno'd then. Also, will there be a SOTP difference in performance? Right now I have a BPP Vortex, MAF ends and Corsa Indy with x-pipe.
Anxiously curious. Can't wait to get these on.
Anxiously curious. Can't wait to get these on.
Burning Brakes
Joined: Jan 2004
Posts: 896
Likes: 1
From: Overland Park KS
The stock PCM should handle those mods just fine. You're car may run a little rich afterwards, but nothing to be overly concerned about. I have a Blackwing w/smooth coupler, LGM LTs w/cats, and Borla Stingers and my car runs just fine on the stock PCM. Sure there's more power to be gained with a little tuning, but IMO I'd wait until you do the H/C to spend the $500 for dyno tuning. You'll definitely notice a SOTP gain after putting headers on. 
