So,would the typical bolt on parts cia,headers,exhaust, tune make these little sweet fits better than stock? Yes or no.

 

no

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What's your definition of better? Will it add some power, yes. Worth the cost, no.

 

Better than stock? Sure, but don't expect any real gains. Let's all be real, it's a 1.5L econo engine...

I put an HKS exhaust 'cause I like the sound, every car I've owned ended up with an exhaust. RAM intake scoop because it was a good design. I thought it'd improve my MPG since the Fit is my commuter car. No real change in MPG but it does help IAT and the slight performance boost. Threw in a K&N filter 'cause it was on sale, again no real discernible difference.

I don't keep cars stock, so I understand wanting to mod a car just be realistic with your expectations.

 

I don't expect to be wrx fast or st fast,I know the engineers made a very good econo engine, but with all those bolt ons and a tune to tie it all together, wouldn't that add some power and funness

 

Yes it would add some but don’t expect much. Maybe 10Hp extra...maybe.

Its already a fun car to drive.

 

I say, if you want a faster car, just buy a faster car rather than dump cash into it. You're never going to get what you spend on it.