Got a stock Si, should i get the motor rebuild and boost, or swap?
which one would be less expensive?

 

swap would be an improvement all around...then i would save and boost

 

If you're really deciding based on affordability, I don't think any of these options are a good idea. It will take a good amount of money to do any of those options, especially if you want to do it right and have it last. I can boost my car for under 1k, but that doesn't mean I'll be driving it a few months from now...

 

go swap then boost! if you do it right it should cost under 6000 bones total!

 

boost it right and have fun

 

swap and have nice a n/a daily driverr

 

ditch the a3 for a2! you can only do so much to the motor saw a boosted a3 in a base rsx at rc that was running full race turbokit with a gt30r or 35r and kpro with a mild build and was only making ~340whp

 

That k20a3 was also built; the car made some big torque for a K20, I thought he made a little more then that. The owner ended up selling the car because he didn't get what he wanted out of it. Buy a a2...

 

Boost and a good tuned.

 

k20a2, boost and a good tune.

 

Do the swap

 

x2