Header and manifold Thread

[Fivefingerdeathpunch]

Everything you said is pretty common. Maybe besides the crossover part, some get problems, some don't.

You gotta pound the tunnel out with a hammer before install.

[Aeroheadcww]

You gotta pound the tunnel out with a hammer before install.

Yeah that's what I did. Then I forgot about it when I jacked the motor up to install mount spacers and I crushed and cross threaded the O2 sensor, which was a whole other nightmare. But I guess I won't make that mistake again.

[dsmuts]

04+ is harder to do the install on in my experience.

[Tony Mendez]

Reading through this sticky and got alot of good info. Here is where I currently am sitting: Transmission is out and torn down. Installed new rear main and oil pan gasket as well as seeping p/s pressure line. I feel like I am at a good stage to do a header upgrade. What would you header gurus recommend? Not really planning on major HP increase. Thinking intercooler, 3.4 pulley, headers, PCM tune. I plan on having the headers and DP ceramic coated so I will need to do a mock up before sending the parts down for coating. Advise and ideas?

[matt5112]

read first post, decide on things you're willing to compromise on, make purchase.