Installed 40 Series Flowmaster Now what? X or H Pipe?

Don't sweat the install it is very easy. After you do it once it can be done in ~30 minutes. You just need some basic tools. Ratchet, 10 or 15mm deep socket (can't remember which), extensions, and a swivel for the ratchet for the bottom manifold nut on the passenger side. It's a piece of cake. Drive you car up on ramps put the rear on jack stands, and get under there. MIL eliminators will turn of your engine light only from the O2 sensors since you don't have cats. Unless you plan to get a chip someday don't waste your money on MIL's a custom tune can turn the light off for free.
 
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68 & 00 GT said:
Don't sweat the install it is very easy. After you do it once it can be done in ~30 minutes. You just need some basic tools. Ratchet, 10 or 15mm deep socket (can't remember which), extensions, and a swivel for the ratchet for the bottom manifold nut on the passenger side. It's a piece of cake. Drive you car up on ramps put the rear on jack stands, and get under there. MIL eliminators will turn of your engine light only from the O2 sensors since you don't have cats. Unless you plan to get a chip someday don't waste your money on MIL's a custom tune can turn the light off for free.


What all is involved in a custom tune? Thanks.
 
I got my 40's installed and wasn't all that impressed.. But then again I didn't know that I had 6 cats either.. Once I had them removed I could not believe it was the same car.. It sounds mean as hell.. Right now I'm just running straight pipes to the stock H but I am gonna switch it out to an O/R X...