Si Which downpipe and front pipe?

[theslowest1]

Hi everyone,

I'm running an HKS hi power exhaust on my 2019 Si. What down pipe and or front pipe should I run in order to get louder sound without compromising quality?

Let me know what your suggestions are.

Thanks!!

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[360glitch]

Two great options are the FP/DP combos from @PRL Motorsports and @RV6 Performance.

 

[theslowest1]

Two great options are the FP/DP combos from @PRL Motorsports and @RV6 Performance.

Thanks!

If I get one brand from the fp or dp should I stick with the same brand for the other?

Any input on what sounds better or what does well with certain catback exhausts?

 

[86salmon]

There's always the down pipe of your choice with AWE front pipe back exhaust as well

 

[2tone]

Thanks!

If I get one brand from the fp or dp should I stick with the same brand for the other?

Any input on what sounds better or what does well with certain catback exhausts?

Stick to the same brand, and both should sound the same. Both offer catless(race) and catted(street) versions. Catless won’t sound as good in my opinion, more drone and rasp, but it’s louder and good for a tiny bit more power.

 

[theslowest1]

Stick to the same brand, and both should sound the same. Both offer catless(race) and catted(street) versions. Catless won’t sound as good in my opinion, more drone and rasp, but it’s louder and good for a tiny bit more power.

The HKS hi power I have seems quieter than most though.

Do you think going catless would be a plus for sound or would it ruin the sound quality aside from performance?

 

[2tone]

The HKS hi power I have seems quieter than most though.

Do you think going catless would be a plus for sound or would it ruin the sound quality aside from performance?

I haven’t heard a catless hks setup in person but I believe it would hurt the sound quality. Vader si had a catless hks setup that I think he showed off on YouTube. I also believe some recommend custom tuning when catless due to boost creep so I still think catted might be the way to go

 

[theslowest1]

I haven’t heard a catless hks setup in person but I believe it would hurt the sound quality. Vader si had a catless hks setup that I think he showed off on YouTube. I also believe some recommend custom tuning when catless due to boost creep so I still think catted might be the way to go

Does boost creep ruin the engine?

 

[2tone]

Does boost creep ruin the engine?

It can be dangerous, but I’m no tuner or anything and I don’t even know if boost creep is a concern on our platform specifically lol

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