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So I can say my SII/III and F40 six speed swap is finally complete. The write up will not be too in depth but I will let you know what parts you will need to complete the swap and the main tricks for the install. First off you will need a F40 transmission out of a 2006-07 Pontiac G6 (RPO code MU9). Also the newer Regal uses the tranny, not sure on the years, but they are hard to find, and parts are even harder to find. Next you will need the Series 3 supercharged engine (pretty much the same as a SII), enough for the obvious. Parts and a few install instructions: Shift cables off a 06/7 G6 with manual 6 speed 15788845 Shifter 15296498 OEM axels off a 06/7 G6 with manual 6 speed (jack shaft 2266835, right 15918505, left 15918504) Outer axle joints and splines off the Reatta (must be OEM) KD Tools CV Boot Service Kit - 3-Pc 3954 and YouTube video Follow the video except you will be swapping the Reatta joints on to the G6 shafts. You will also need the G6 boot kit. IF YOUR PARTS ARE NOT OEM THEY WILL NOT BE SERVICEABLE AND WILL NOT SWAP. The jackshaft mount will have to be modified as the bracket is not at the right angle for this engine, Welding required. 97-03 supercharged fuel rail and injectors 97-03 supercharged throttle body to include IAC, TPS, and MAF Throttle body adapter plate http://www.wbodystore.com/3800-supercharger-parts-kit-conversion-v6-gm/86-gen-v-throttle-body-adapter-.html MR GASKET 7678 (or equivalent, it is getting hard to find under the brand) oil filter bypass It looks just like this one, but I am not sure if this one has the correct threads. http://www.ebay.com/itm/Transdapt-remote-oil-filter-bypass-adapter-1050-/111499812994?pt=Motors_Car_Truck_Parts_Accessories&hash=item19f5e82082&vxp=mtr An oil filter relocation kit 04 Grand Prix oil filter adapter These are to clear the axle. Without them the oil filter will hit the axle. Throttle cable from a 98 Park Avenue (must be shortened with a crimp or wire stop at gas pedal, but all connectors will work) Cruise cable from donor will have to be modified to work with our system. I used some heavy cold shrink and it worked out well. G6 clutch fluid reservoir Clutch pedal (used one off a Triumph Spitfire and modified it heavily) Clutch Master Cylinder CM1116 LMC335 (or one of your choice dependent upon pedal selection) http://www.ebay.com/itm/Clutch-Master-Cylinder-Perfection-Clutch-350087-/350824569014?pt=Motors_Car_Truck_Parts_Accessories&hash=item51aec618b6&vxp=mtr You will have to remove the windshield wiper motor to have access to drill pass through hole. (For the pedal and master cylinder you may be able to use a 3 series BMW assembly and not have to drill a hole. I was not able to find one locally and was not paying for an OEM set and not have it work) G6 clutch fluid reservoir DAKOTA DIGITAL UNIVERSAL SPEED ADAPTER CALIBRATOR SIGNAL INTERFACE SGI-5 NEW (for correcting speedometer) The instructions are great, the F40 speed sensor is either 60,000 or 6,000 pulse per mile, not sure off the top of my head. The Reatta is 4,000 pules per mile. I nailed the adjusting on the first try to include my off size tires. Flywheel from a 2000 Camaro with 3800 engine You must have this weighted to match the stock SC flexplate. All the weight can be taken off of the weighted section of the flywheel with a grinder, instead of drilling Clutch your choice from http://www.specclutch.com/conversion_combos/view/11 I made all my mounts as I wanted them to be an over kill. Most of the stock mounts can be used with a little modification. With that being said, if you cannot weld or are not will to pay someone to I would not do this swap. Wiring on this is pretty straight forward. The ICM will have to be spliced in using the SC harness. It is a standalone harness that runs to the CPS and cam sensor. The color code pretty much match the Reatta harness, but always verify. The injector harness will need to be lengthened. The TPS, IAC, and MAF connectors will need to be swapped to the SC connections. The reverse switch must be wired into the Reatta harness. This brings me to another positive on this swap, most of the stock transmission wiring can be used as anything you like (alarm pin, remote radar, ect.). The VSS will have to be wired into the harness, and the above mentioned signal converter will need to be used to convert the signal and adjust the speedometer reading. ECM will need to be programmed to run the engine and lock out some of the automatic transmission options. Once again I had/am having Ryan at SinisterPerformance.com doing mine. AC is another monster in all. I chose to use the AC compressor that came with the motor, so I had to have some custom hoses made. I did this because it is designed to run the newer refrigerant. If you wanted the stock compressor could be used as in an earlier post Ryan did on the forum. All in all this was a challenging DIY garage swap, but well worth it. Also with the mods I have done to the engine I would say that it is probably too much for this car, because of the lack of suspensions upgrades available. As long as I keep my foot a little light on the throttle this car is extremely quick and a joy to drive.