Biggest gain for under 700?
 

I have a 2012 manual gt all stock with brembo package what's the biggest bang for under 700 I have a tuner no tunes yet though

Tune.

Get a tune and lower differential gears.

This

Dpends on what he is looking to do.

tune and catless pipe

Tires and experience.

Truff!!!!!

Tune and offroad xpipe should put you to 400rwhpish depending if your auto or stick.

Nitrous!

Need a tune to run nitrous so that would be over 700 dollars.

Psshhh, that's nonsense. Next thing you're going to say is he needs sticky tires!

In all seriousness though, I've seen a couple used kits come up for $500 or less. He can get a nitrous tune for relatively cheap since he has the tuner already. Now the street tire thing might be a little sketchy!

Is there that much of a difference between off road and catted when it comes to rwhp or is it just 2-3 rwhp?

I'd say somthing around 5-7 rwhp. With the offroad you get the wonderful gas smell. I really like it in all seriousness.

I'm betting he wants quicker acceleration. :driver: