Non-resonated exhausts..

[Hrimfaxi]

Right, looking to fit a new system from the cat-back. I'm keeping the manifold and cats standard, but want to hear the flat 4 sounding how it should!
Been looking at Cobra and stuck on a decision between resonated and non-resonated.
Baring in mind, I plan to a LOT of long distance driving next year, including European rallies, will a non-resonated exhaust drive me insane with the drone?
Cheers.

Yes, I have searched this, can't really find anything Impreza specific though.

[peter8171]

What age is the car? Some cars have equal length headers (manifold) and some have unequal length. The unequal length are part of what gives the Impreza its burble. Have a RCMS stainless back box on my 03 car and it gave the noise I was after when going for it, but when cruising it is very quiet.

[Hrimfaxi]

Mines also an '03, blobeye.
Interesting, keeping my options open at the moment.

[Ved]

I've a full 3" Milltek with a resonated centre and it's pretty loud but fine on the motorway. The backbox will be your main issue so go to a dpecialist and try a few out. H&S won't do you wrong and will sound great.

[paulmoonraker]

I have a de-resonated centre pipe and an Afterburner vortex backbox. It's ridiculously loud and does drone a bit when cruising. Fine for a blast (which is what I use the car for), but I wouldn't have the set-up for a daily.

[Hrimfaxi]

Thanks for the replies.

Considering the amount of long distance use it's going to get - i'm going for a resonated section!
Backbox wise, i'm still un-decided, but now Hayward and Scott are looking like a sensible choice.

[peter8171]

Hope you get the sound you're after! Have fun.

[paulmoonraker]

H&S make the Afterburner. A Prodrive backbox is nice for longer distance, as is the Ninja 2.

[jarvie]

I've got the resonated Milltek system on my Forester XT, when cruising there's a burble, but it's not overly intrusive and doesn't drone, however, when I really step on it it sounds like god snorting cocaine!

[markCSC]

I have a non resonated H&S centre pipe on my Forester and it isn't too bad. When I got the car it had an Afterburner Vortex backbox and as the previous poster said, it's bking loud!! I soon changed it to the H&S 2.5 inch back box and it's fine. Still a great noise but doesn't give me a headache like the vortex one did.

As an aside, I once drove a decated Subaru with a twin exit backbox. It was really quiet until you opened it up. Might be worth considering.

[adingley84]

+1 Foy Hayward and Scott. Well made, great sounding exhausts^😮