If you had to choose one mods what would it be?

A RUF engine swap.

[drburton]

The engine swap would be nice but probably cost prohibitive for most. So if you consider cost as a factor:

1) Enjoyment - Wheels, I have a weird wheel obsession so good wheels are a must
2) Performance - aftermarket headers and exhaust - gets you the sound benefit plus a bit more HP.

[heyjae]

If it were strictly one mod, it'd be coilovers, but I'm more interested in handling than most.

[rick3000]

I go with: If it isn't broken don't fix it, but if it isn't there add it.
Porsche knows a lot more than me about building cars, and they made every part of the car specifically to work together, so I stay away from performance mods. Plus, I am perfectly happy with the performance of my car, and keeping some money in my wallet.

My favorite mod so far was the OBC switch, it adds a lot of functionality for only $50, although figuring out the intermittent wipers from the scattered info on the internet was a lot of fun.

[pteam]

IF this question were on the viper boards (which it probably has been) almost everybody would answer : EXHAUST!

Changing the exhaust on the vipers gains 20 hp / 20 tq , removes the x pipes underneath which restrict air and create lots of heat for the cabin above, plus the cost alone is worth it based just on the sound. Plus you have weight loss which it saves 17 pounds.

All this info can be applied towards the porsche but not as much for each category.

[clickman]

Geez, I guess I haven't got as much spare cash as the rest of you...

For me it was the rear speakers, simple yet effective

[djomlas]

it would have to be something that you use every time in the car...also depends on $.
if sometrhign relatively cheap, short shifter, its a must as one mod or add to all the mods you do, shifter in boxster is a joke.
if no money was object, prolly an engine swap

[Back2DTM]

Originally Posted by clickman

Geez, I guess I haven't got as much spare cash as the rest of you...

For me it was the rear speakers, simple yet effective

stock rear speakers or upgrade? my stock ones are weak...

[jmatta]

Evo Hi-Flow intake for pure sound enjoyment...lowering springs so your car doesn't look like a 4X4. Oh yeah; throw in a short shifter and ditch the factory long throw bus feel.

[Kirk]

Visual - I was actually surprised by my best visual improvement. I got some Gemballa lowering springs cheap off of eBay. After I put them on I was really amazed at how much cooler the car looks lowered. It may seem subtle, but I personally would do lowering springs before wheels for a visual improvement. Larger wheels just look strange when the car's not lowered.

Performance - You're pretty limited as to what you can do with engines that come so highly tuned from the factory. I've done an intake filter and exhaust, but I think if you really want to improve performance, then you're looking at a 911 engine swap.

[BoxsterLewis]

How much do these 911/Carrera engine swaps run anyways?