That's probably the cheapest way to go for exhaust sound. I had a Cobb turbo back on my 06 WRX and although it costs me some $$, I loved it. I'd dish on another exhaust if it actually helped performance on an NA motor, but I doubt there's isn't much of a market for an aftermarket XV Crosstrek exhaust, let alone for an NA motor.
Pretty cool, I liked the sound, but only sometimes. I don't know how to describe what I disliked about it -- it just was too "crackly" at some points. Overall I liked it, but I don't think I would want it on my XV.
The big contributor to the difference in sound from the Turbo Subaru motors to the N/A motors is the difference in header design. The N/A motors had an essentially equal length header while the turbo cars had unequal length headers. If you put an equal length header on a turbo Subaru it will sound VERY VERY different. Much more like the N/A cars or any other car out there, likewise if you put an unequal length header on an N/A car it will bring out the rumble!
This is the CHEAPEST way to go if you like it.... it's a muffler delete. unbolt the flange from the muffler and fab up a straight tailpipe..... I personally think it is too 'raspy' at times... low rumble (like the fox) and nice RPM range sound is what I will shoot for...
While we were playing under the XV doing some fab work we looked at the exhaust and all you would need to fab a straight pipe is about 8 inches with a bend in the middle, a hanger, and a flange. You could just dump it right from the flange that's there and turn it down on the drivers side. I personally would consider fabricating a decent axle back using maybe a magnaflow straight through muffler. They tend to sound pretty dang good on Subaru motors.
You know, I m off for a few days and I m thinking of heading downstairs to do just that! Would you have any concerns about lack of back pressure damage to motor? I m thinking no but want a second opinion.
That's a good point. Thanks for the input. I ll post if I do it. I have a buddy with a muffler shop and a lift which makes it quite easy. Plus I can bum a bunch of spare pieces from him! All depends on how busy he is.