I've heard the single-outlet catback exhaust and I'm in love. It's not big, and it's quiet (but oh so mean sounding). I'll be driving my dealer's MRT demo WRX on the 20th. It has CAI, a bigger intercooler, and the MRT catback. I can give it a review here after then.
I have the MRT turbo-back, TMIC, and CAI.
The exhaust is really sweet sounding, not to loud but has a very nice rumble to it. I haven't had any problems at all with any of the MRT parts, i'm very satisfied.
Thanks for the feedback. I read "Training WRX" and am impressed with the "Australian approach" to modifying the WRX. I'm getting a MRT top-mount intercooler and an MRT downpipe- already have the Tanabe cat-back. I'm wondering about their EBCs modules. Any feedback. Also, the manual I read seems to discount up pipes and chips. Has anyone alse read this?
I'm not sure where reston is but if you really want to check out MRT parts i got mine from Westminster speed and sound
the owner has a wrx pretty extensively modded with mrt parts. if you want email or call him he will probably set up an appointment and take you for a spin.
I've been to WSS and am very impressed with Mark and his staff. Yes, they are not big on downpipes. If you are looking for some good reading on the WRX, try "training WRX" by Nick Warne. In thsi manual he downplays the need for chips and uppipes.