its 12dB louder lol jk i dunno its a tad bit bigger so it should be a tad bit louder

 

When my car was stock it was most audiable when taking off from a start, especially when the engine was cool.. And WAY louder when i had the air box mod.

 

Mine is very loud. you can hear it from next block.

 

lol this is because your turbo is also i tad bit larger than stock arif

 

I like driving through alleys or by store fronts where the spool up echo's more. Best way to hear the lil k03 is at low speeds while building boost. Like 3rd gear @15-20 mph floor it.. Youll hear it spool up but wont be going fast enough for road noise or rpms to drown it out.

 

Hey thanks guys when I read the post about how you shoudn't hear your stock k03 I thought something was really wrong. By the way Arif in your little pic it shows that you had a borla exhaust and now have a magnaflow which is better and what are the differences?

 

Borla
2.25", Great sound, gain on stock car between 2-3k rpm.

Magnaflow (mid muffler + muffler with tip)
3", Great sound, gain on my BT setup between 4-7k rpm.

 

Thanks