The headers usually cost around 500$ and if you install them yourself you will save about $250. If you get a good performance muffler you are looking at $100-300. Are you going true duals?

I'm thinking if a shop does the entire install it would run around $1,200-1,500 depending on what brand parts you choose.

 

Anybody have a link to what type of bolts to replace for the manifold. Can I use the locking type for headers?

 

Exhaust bolts are Metric M8-1.25 x 40mm. These are the ones I use.
http://www.clipsandfasteners.com/Jis...c_p/a17191.htm

 

Don't those bolts snap pretty easily?

 

Stock bolts yes, and I would never use them again.

10.9s no. Run a google on "10.9 exhaust bolts SRT "and you will see on the SRT Forums they are holding up to serious rwhp.

 

Those bolts at Clips & Fasteners are really expensive ($9.33) unless the price is for a set of bolts rather than for 1 bolt.

 

i just bought mine from nuts and bolts . com .60 some cents a bolt. they are on back order and will be here next week.

 

.90 cents a piece at Ace Hardware for the flanged hex bolts I use. Like Winston said, the standard hex is .60 cents a bolt. I use the flanged hex to evenly put pressure on the header lock washers.

 

my true dual exhaust cost me a totall of 400...125 for the muffler 25 for the tips and 250 for the welding and install!

 

LOL my first official exhuast cost me nothing... had the Sawzall, had the blade already.