hey guys... i'm wanting to get a new exhaust system...... i already have a Ractive DTM styleee muffler, but it just seems too loud. It seems to sound wierd when i'm drivin on the highway... usually in the 3k range it drowns in and out its wierd. i'm not likeing it.

So the Greddy SP is my next choice....

i was wondering what are ur thoughts on ur Greddy SP....and is it loud or quiet. even during highway driving...?