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Howdy,

Have done a search and trying to track down some results for the most power pushed through a HKS Hi Power Silent. Some have advised it will be fine, others have said they are too restrictive to push over 600whp.

Going on my E85 slurping, precision 6262 turbo, HKS RB28, R32 GTR

Cheers,

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https://www.sau.com.au/forums/topic/449316-hks-hi-power-silent-results/
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It'll be fine for your setup.

Its a 90mm exhaust and has no restriction plates in the mufflers.

If you wanted to make it as free flowing as possible then get someone to cut out and replace the small section of pipe that steps down in size near the flanges.

Edited by Chris32R
  • Like 1

I've got an HKS Hi Power Silent on mine, was tuned at ASG last week at 610rwhp, seems fine. It's not obnoxiously loud either which is great.

thats what i was after, i was going to go Tomei Ti, however a few friends have them and they are silly loud for a car i want to enjoy on the street on occasion

exactly the answer i was looking for, 600+ with a HKS Hi Power

its a great exhaust, no drone or rasp in the cabin which makes it top tier for me.

I've got an HKS Hi Power Silent on mine, was tuned at ASG last week at 610rwhp, seems fine. It's not obnoxiously loud either which is great.

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