Looking for louder exhaust without sacrificing low end torque.

[Nomad76]

I recently bought a ‘23 Kia stinger and am looking to nod the exhaust. Would high-flow cats on the primaries increase the sound? If so, does this affect the low end torque? Are there any dyno charts that show ghe before/after around 1500 rpm on?

I will probably, eventually , go with a Lozic tune. However, the car has less than 100 miles on the odometer. So, that will be further down the road.

 

[byebyeSTI]

none of those things will help low end torque , keep the cats , do a cat back exhaust , then get a tune

 

[RM7]

Typically, opening up exhaust can cause the turbo to spin up faster or to a higher PSI...with a tune, especially the downpipe and exhaust immediately downstream of the turbo. If anything, this results in MORE low end torque and the turbo runs out of breath FASTER/EASIER at a lower RPM than previous. When I am referring to exhaust, I am not talking axle-back stuff. That's just for sound.

 

[Daniel @ K8 Stinger Store]

As mentioned earlier, you should be good to go with a tune and any catback. I personally went with Thermal R&D and love it but we have a lot of other options HERE.

 

[Nomad76]

As mentioned earlier, you should be good to go with a tune and any catback. I personally went with Thermal R&D and love it but we have a lot of other options HERE.

Is there any exhaust system that works with 22+ Stinger system to control the exhaust valves?

 

[keplaffintech]

Is there any exhaust system that works with 22+ Stinger system to control the exhaust valves?

MBRP are developing one but they have delayed it for months and months so don't hold your breath.

 

[NS_Stinger]

You could just get secondary cat deletes (secondary downpipes). Those will give you a little extra sound and I never experiened torque loss with them.

 

[Futurama]

I personally have the Borla exhaust and had a shop delete the secondary resonators by putting a straight pipe instead. The primary cats are still stock. I also replaced the stock airboxes with cone filters and have the stock BOVs vent out to atmosphere.

I have been complemented a lot that it sounds really good from outside. It has a really nice tone to it. It does drone on the inside but people have suggested that getting aftermarket tips greatly helps in reducing the drone. You can also use dynomat in the trunk for extra sound deadening.

Overall I'm very happy with this exhaust combo, and if I had the extra money to change anything, I would probably have a shop wield a pair of bottle style resonators probably on the secondary downpipe just to reduce the tiny bit of rasp at certain rpms.

 

[Nomad76]

You could just get secondary cat deletes (secondary downpipes). Those will give you a little extra sound and I never experiened torque loss with

I personally have the Borla exhaust and had a shop delete the secondary resonators by putting a straight pipe instead. The primary cats are still stock. I also replaced the stock airboxes with cone filters and have the stock BOVs vent out to atmosphere.

I have been complemented a lot that it sounds really good from outside. It has a really nice tone to it. It does drone on the inside but people have suggested that getting aftermarket tips greatly helps in reducing the drone. You can also use dynomat in the trunk for extra sound deadening.

Overall I'm very happy with this exhaust combo, and if I had the extra money to change anything, I would probably have a shop wield a pair of bottle style resonators probably on the secondary downpipe just to reduce the tiny bit of rasp at certain rpms.

My ‘18 had the Ultimate Performance downpipe/ Midpipes combo and a Stillen cat back., Aem intakes, Mishimoto intercooler kit ect. The UP downpipes sounded great, but the car seemed to lack some, on the low rpm after the mods and I had to get ewg wires for the Jb4 to prevent it going into limp mode. I’m not sure which mod attenuated the low end torque, but I would like to keep the stock feel (under 2500 rpm). This makes me very cautious as to what mods I’ll put on this car. Someone suggested the rear cat delete pipe. I think I’ll start there.