i've heard that the SP is loud all the time like the Apexi N1, and i've also heard that its only loud when you get on it...who's got one and whats the truth??

 

I have it on my 4th gen. It is loudest at really low rpm's...its a very deep and bassy sound. On the freeway its pretty silent unless you let off the gas or punch it you hear a sporty droning sound. Everyone compliments me on my SP exhaust. It's the best sounding I've heard.

 

Yeah I feel the same, its loud at times but a pretty deep tone.

 

Its louder than the Evo, loud at low rpm, on the freeway its not bad. N1 is louder.

 

i just heard one today, i didn't like it, at the lower rpm's it sounded like a fart in a can.

 

I've got the Greddy PE & it has good sound. Pretty deep.

 

i like mine