about a year ago i got a greddy sp2 put on the maxima which sounded great without the whine of the stillen or other exhaust systems. Recently though in the lower rpms of first gear mostly i get a raspy high pitched sound. The exhaust still sounds good once u get on it but at ideal and 1st the sounds just isn't the same. anyone else experience this.......??????

 

Try a new gasket between the B-Pipe and the Muffler...

 

on that... mine ended up blowing out. I ended up just replacing all of them with gaskets from the dealer.

 

where can i find new gaskets .... how much are they / how hard to replace???

 

i have the apexi ws2...i did test fitment for apexi and i've had the exhaust for about 10 months..but i only get the rapsy noise in 1st...maybe like others said it could be the gasket...try it..or check for leaks...