Iip-tronic to manual
 

Has anyone replaced a tip-tronic with a 5 or 6 speed manual?How difficult is it?

I looked into it when I first bought my '99 Tip and decided it was to difficult and expensive at the time. That was five years ago and I don't remember the cost.

It simply does not make economic sense. It is vastly cheaper to sell the Tip car and buy a manual version.

Its been done but you better have a complete car to swap from as its not just a trans, clutch, hydraulics, etc.

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I did an auto-to-manual swap on a Honda a couple years ago and I can tell that on a Boxster, it will be a lot more complicated and expensive.
The only way that it would make sense is if you are doing it for the joy of the challenge and have a car to pull all the parts from.
My guess is that the chassis mounting points and holes for wiring and hydraulics are all (mostly) there already. It will involve converting the plumbing for cooling, replacing the engine wiring harness, some relays and wiring, pedals and clutch hydraulics, shifter and linkage, all the mechanical stuff from the flywheel through to the CV shafts, and more. The DME/ECU *might* tolerate it with a few minor tweaks to the wiring, but it would be best to swap out the whole DME+Central locking unit+transponder.

This will give you an idea of what is involved;

• Install a clutch pedal assembly
• Change the brake pedal
• Install a clutch master cylinder
• Install hydraulic lines that tie into the brake system (the brake and clutch share hydraulic fluid)
• Bleed brakes/clutch system
• Install manual engine harness
• Remove all of the Tip wiring/relays/controller
• Get the remaining electrics/wiring to work
• Install a manual car gauge cluster (no gear indicator lights)
• Re-program the gauge cluster for mileage
• Re-program ECU
• Install flywheel, clutch, pressure plate
• Install 5-speed transmission

I am sure that I forgot a few things, but you get the idea.

Its a pretty big job and obviously not economically worth the effort.

Even the starter motor is different