99Blackt/a

Finally got my mac mid lenght headers now what do i need??

Drew778/94Z

Well, you need to install them

Maybe new exhaust gaskets, ARP header bolts are nice

My00Camaroz28

I should be receiving mine as well today or tomorrow and I plan on using stock gaskets and bolts. Do you have an offroad Y pipe to go along with it? If so you will need a pcm tune or o2 sensors.

Are you installing them yourself or paying someone? If you install them post how it went.

Greed4Speed

I used stock gaskets and bolts. No problems there. ORY doesn't require a tune or O2 sensors. It requires O2 simulators or the rear O2 sensor/SES code turned off, not necessarily a whole tune.
With a 99 you should be fine on the EGR, AIR stuff fitting. I just went !AIR.

My00Camaroz28

I meant to say simulators whoops. Anyway, is there an easier way to get the SES code turned off for cheap?

BirchMan98z

stock bolts are convenient. I bought the stage 8's but they've never even budged, so kind of pointless for me, then again I only drive my Z about once a week, and never from november-march unless it's an uncommonly nice day. Never in the rain, never in the snow, never when it's blazing hot. I guess you could say I protect my car... LOL

teke184

i too used stock bolts, and oem metal gaskets. no problems.

check out page 11 of my website in the sig for a step by step header install guide. it's for flowtech LTs but the idea should be the same.

and no there really isn't any cheaper way to get rid of the SES light. either sims, custom tune or a hand held programmer.

Greed4Speed

From what I've seen a place that can tune will turn them off for ~$50. Just call your local place.

99Blackt/a

So i need to get egr block offs,I'm plannign on removing the air pump as well, will i need o2 extensions or not what else do i need for the headers to go in without a hitch?