Thanks sd_boxster!

[backman_z]

Left for work early today and put my Boxster through some “tests.” Let me qualify this a little by saying that I have only had Boxster for about 1 year. Prior to this I have had small SUV’s and economy cars, so my “butt dyno” is not as well calibrated as some others may be. I drove both a highway and a curving road with some hills. Yes, I would say that there is more power to the wheels.

Getting onto the highway, I came to a complete stop at the on-ramp before launching onto the road. Several car kindly moved to the left lane to let me on the road. Maybe it is me, but I have never spun my wheels before, never really tried. On this morning, I did not try, but spin they did. Maybe there was some graved, who knows, but once the tires gripped, I shot onto the road and quickly passed all the cars that had pulled over into the left lane. On the back road, as I was coming out of the curves, I could feel a little more power when giving it gas. I only have a dummy light for the battery, so I cannot really comment on the electrical stuff.

Did this mod turn my Boxster into a Carrera GT? No, and I didn’t expect it to. I actually wondered if, due to my lack of experience in performance machines, I would be able to feel a difference. But in the end, I am pretty sure I did. All in all, a nice sunny drive, with just a little extra adrenalin for this mornings commute, and many other drives to come.

I am happy about the results of the mod. This is also a return to tinkering with my cars, after a long hiatus. In the past it was more out of necessity, this time it was pure fun. I’ll have to let your know if I have any electrical problems.

Next project… maybe secondary cat bypass pipes?

[lbrown2009]

i have cat bypass pipes on order from FVD, am I addicted to mods?

[The Radium King]

ot, but on-topic wrt bypass pipes -

i think, from a flow turbulence reduction point of view, that it is best to have the restriction as far down-stream as possible. in the case of the boxster, this means deleting the pre-cats (the ones on the headers) and keeping the secondary cats (the ones on the mid pipes).

so, it would be less expensive, and provide more power, to get a set of those cheap Chinese headers on ebay (they come without pre-cats and are designed to connect direct to the mid-pipes) and keep your current mid pipes. this will require some post-cat o2 sensor kung-fu, however, as you have to either (a) extend the sensors to after the secondary cats (and perhaps add a bung) (b) get a ROW flash so that your car doesn't throw an emmissions code, or (c) get one of the many o2 sensor simulators or 'foolers' such as sold by fvd (or fab your own).