What would I need to make a 4080 replica? And can I fit a 12" or does it have to be a 10", soon to get a 2 12" sub enclosure to go in the rear of the trunk with a amp rack In the cargo spot. Looking at a 5000w amp 4channel 2ohm, 2 12" MTX thunder 9900. also planning to do some door panel subs. Gonna need to 15" and 2 more 12" than a duplicate Amp under the rear seats. A lot of work, gonna have my dad and two friends help.

 

you could stop making threads to all your questions, and maybe do a little searching

 

He wants to remove the factory speed limiter but at the same time wants to add a couple hundred pounds of speakers

 

He took me seriously?!?

Seth, for the love of god, please take your RX8 to a professional for a consultation and to have them perform the work. You're so far in left field that you're embarrassing yourself. I'm not trying to be rude, but rather would just hate to see a fine piece of machinery ruined.