anyone heard of mac full length headers, i am looking at a package for mac full lengths with an offroad y pipe for 467 heavy coated, is this any good and if so do you know the hp rating witht this set-up plus flowmaster 80 serires .im only looking to spend about 500 bucks on headers, any suggetions.
-
1994 firebird formula
no need to talk. i can walk the walk. -
To be honest, I would really suggest you get rid of that flowmaster and put on a decent 3 inch cat-back (i.e. SLP Loudmouth, SLP 2 on the left, Borla, etc.). I don't think the stock intermediate pipe is sufficient with headers, especially if they're long tubes (are they?). You probably won't see much gains in hp unless you put the good cat-back system on.
After the cat-back, then headers should come into consideration IMHO.
Just my .0294 Black T/A GT, Advanced Induction 355, 3200 stall, built 4L60E, Moser 9", Baer Brakes, Shooting for 11s... -
yes they are long tube1994 firebird formula
no need to talk. i can walk the walk.Comment
-
Then I would suggest getting the cat-back....I always thought of it as opening up the exhaust from the back end up to the motor IMHO...to ensure there are no restrictions in the middle.94 Black T/A GT, Advanced Induction 355, 3200 stall, built 4L60E, Moser 9", Baer Brakes, Shooting for 11s...Comment
Comment