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Id advise against engine swaps. The whole reason the car is NA and a flat 4 is for a low centre of gravity. Any other engine is going to mess up the weight distribution and subsequently the handling. The FA20 is already a great motor. Makes more sense to Supercharge or Turbocharge it rather than swap it out. I’ve done 8 engine swaps and I basically regret all of them as the reality never quite lives up to the dream. There is a good reason manufacturers choose the engines they do in their cars. They have lots of engineers, designers, accountants and sales people choosing what works best.

That's lovely motor, great colour too

Or just leave it stock! One of the things I love about the BRZ is that it's not a Toyota 😉 The other thing I love is that you really have to work to get the most out of it and there is something very rewarding about that. You can't be lazy and ride on a wave of torque, you have to work the cogs and rev the engine to get the best out of it. Yes it's not very torquey low down but so what? It revs to 7400rpm and there aren't many engines that offer that from mainstream manufacturers, and thanks to turbos the reward to rev is low.

There's no denying that a header and remap makes a massive difference which you would enjoy daily.

Unmolested... Ok my new go-to for describing stock GT86s!