Rep Power: 781

Hey guys I was looking to toss on a catback for my sir but was worried about sound level. I had a magnaflow cat back in the past on my EL and the interior noise level was just brutal . I wanna have the larger piping for better air flow but dont want that loud *** soud. I also didnt wanna have to spend tons of $$$$$$ something more cost efficient. I was looking at BLOX because of the price but I bet its extremely loud, is there anything anyone could recomend?

 
Rep Power: 726

i don't have one myself, but i was looking into this as well and a lot of people suggest the Apexi World Sport muffler