installed SU Test Pipe

SRT-4 always seem to be very grumbly and loud, with backfires all the time everytime I hear them.

I found that the rurbo whined nicer and sounded more prominent with the resonators taken out. Less backpressure maybe?
 
yeah, this MS3 sounds like a srt4 since he/she deleted the muffler along witht he two resonators. but can you hear the "whurl" sound of the turbo spooling down that im talking about? i want to know if thats due to the muffler and resonators being removed which would cause less backpressure

http://www.youtube.com/watch?v=0zIw2-5NnAY
 
still thinking to buy the midpipe because of the fitness issue, who has this setup? Mazdaspeed Exhaust 3", what midpipe has? Thank you.
 
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