xdejablu3x

I can't seem to locate any DIY's for installing 4-2-1 headers on an automatic tC sense the coolant lines are placed in the way. Just wondering if anyone has done it or even have tips for a more efficient install?

xile6

Just remove the old and install the new.
Havent look at the autos but shouldnt be any coolant hose in the way

xdejablu3x

Yeah, there are these metal lines for coolant or the transmission that bent accordingly to go around the stock header towards the bottom, underneath the radiator fans. They are not there on the tC's with a manual transmission.

xdejablu3x

To make it easier to see what I'm talking about.

xile6

transmission cooler lines. You should still be able to fit the header in there.
If it sits to close then you can bend the lines a little out the way but it does seem like it would clear.

xdejablu3x

I've read people being able to install them on an auto but never gave much details but just complained it was a pain to install.

By the way, did anyone ever run into the issue where the nuts were welded onto the midpipe where it either bolts up to the s-pipe or axle back?

xdejablu3x

We'll my buddy and I got it installed last night. We had to (no exceptions) disconnect the mounting brackets to move the metal transmission lines out of the way in order to bring the header through the bottom. The process would of been a whole lot easier on a manual transmission as there is much more room for play. We also had to fully disconnect the oil dip stick because it was also in the way. It took about 2 hrs due to the old rusted hardware that came off surprisingly easier then expected.

It would of taken about 30 minutes if it was a manual. The header is raspy as expected but it was cut down tremendously with my Tanabe Medallion Touring exhaust (looks like a beefed up OEM exhaust). The rasp is still there but you hardly notice it. So far no CEL due to the CEL eliminator. I plan on getting a custom midpipe done in the future to cut down on rasp and get a better town and will definitely run some kind of cat to clean up emissions, keep some back pressure and tone down rasp.

I do feel and see a difference but not turbo boost wise. Not bad for a header I played $170 for.