Dumb question: Has anyone ever attempted to swap 7sp to 6sp in a sedan or coupe? I searched under 7sp or 6sp conversion or swap, no dice.

 

No one has posted about doing that swap. Possible? Yes, definitely. Practical? No way. It's more feasible to sell the AT car and buy another with MT.

 

6sp sedans are rare. Not too feasible. Wanting 450+ hp in a sedan.

 

You would need the transmission, shifter, shifter links, new pedal, slave cylander, lines, new center console, hand brake parts, prob a 6mt ecu.... Plus installation...

Like BB said it's possible... But I would imagine it costing 6k at least

 

Donor car...I have skillz yo!

 

You must not be looking in the right places. There's plenty of them here on the forum. Some with far beyond 450HP. I've got one in my driveway that belongs to my wife.

Expand your search. Mine came form NY and I had it shipped to TX. But if you are insistent on getting an AT and doing the swap, best of luck. Be sure to post a build thread. Many here would be interested in that.

 

Don't you have a X?

 

The lack of information is probably something that I'd be a bit hesitant on. Be prepared to spend a lot of money if you're going to be the first to attempt it.

Manufacturers have started to do a lot of things based on the transmission they're putting in the car including using different floorplans. There may need to be sheet metal work to accommodate the transmission, mounting points may not the same and may require some serious fabrication to make them work. There are all sorts of nasty surprises that can lurk when you're the first to do a project like that. Wiring and sensors is another issue because of how many different things that today's ECU's check, you may find that a harness swap and sensor swaps are all necessary as well.

There are plenty of 6MT sedans for sale, you just have to look for them, and you may have to be prepared to travel and give up some of your negotiation leverage, but a plane ticket and a drive back is WAY cheaper than what you're proposing, even if it's the simplest potential situation where it's just a straight up swap.

 

I have a 7AT wanting to go to 6MT because I hear that 7AT will not handle much past 400.

Yes I have an X.

 

Stage 10 does a pretty nice job beefing up the ATs, might check w/ Lt8che to see how his is doing. Would be cheaper than all the labor & parts to swap to a MT.

 

Are you planning on keeping AWD?

Honestly, if a 6MT + 400 hp is the goal, your better off finding a RWD 6MT. As an added bonus you'll get the BBK, sport suspension, fast ratio steering and LSD.

Dont forget, a transmission swap is going to cost you on the back end due to diminished value.

 

Chevy SS.

 

As others have mentioned it would be cheaper to either build the AT transmission to hold poewr or sell the car and find a factory 6MT.

 

This idea reminisces of the 240sx days gone by...
Maybe in another 6-8 years this will become a reality.

Nissan enthusiasts will once again frequent the DriveShaft Shoppe.

 

never!