[B4 RSK Exhaust Help!]

11 minutes ago, sobanoodle said:

I had midpipe resonator replaced with a straight pipe, sounded pretty crap paired with a quality aftermarket muffler - raspy and unnecessary loud. Ended up finding a quality 3" mid pipe with a resonator, never been happier. 

 

Yeah I seen lots of people say that resonator removes the raspiness sound.. Now Im thinking of keeping the res but deleting just the cat

[B4 RSK Exhaust Help!]

34 minutes ago, A_J_T said:

Single Turbo conversion, V7 UEL Exhaust Manifold.. 

 

The twin turbos will never really have that iconic suby rumble because the exhaust manifold is an odd length, only time they actually sound nice is over 4000rmp when it goes parallel, then its more of an equal length sound. other than that they just sound very hollow imo. 

 

But there are performance benefits to have, so there really is no drawback to de-cating and freeing up flow a little. Decreasing exhaust back pressure can cause boost spiking and what not so either get a tune if its Rev-D or find a good boost controller to manage boost. You don't want to run higher boost, but a good EBC will help bring boost on earlier and hold on longer, then you reap the benefits of the decat etc. 

 

Edit: Other posts suggest it is a Rev-D. Add breathing mods and go for a tune. Hi flow panel filter + de-cat downpipes and midpipe. Straight through muffler and tune for NZ 95 or 98. Being an import it will be detonating like a mofo 

 

 

I heard people say that messing with just the back exhausts cat and resonator you wouldnt need tune, only when you go upper where downpipes and stuff then you would need tune.. 

I already have a aftermarket muffler and it got that nice deep tone rumble when on idle, its just I want it a little more louder so I thought removing mid cat and res would do that.. I'll leave my intake stock too cuz people say if you mess with it you'll need tune..

overall Im not planing on tunning or modding the car too much.. for the most part keep it stock but make it a bit louder for some necks to brake

 

[B4 RSK Exhaust Help!]

Hello, quickly want to ask and see what their Legacy owners done to their exhaust, has anyone done Resonator and mid cat delete? How is the car running and sounds after that? Any noticeable changes? My main goal is to get that nice rumble deep tone sound.. i have afternarket muffler but its not loud enough since I got all the factory cats and resonator, anything will help thanks

[My very first Subaru]

Thanks!

[My very first Subaru]

Thanks for ur comment Leo, could you explain me little bit about hose 10 mod and what it does to the car? 

[My very first Subaru]

Hi guys, I got 01 B4 RSK that I imported from Jap, would like to ask for some advice on modifications and procedures on what should I change, check, clean or mod, any advice would help thanks