HKS Hi-power exhaust

[ChopstickHero]

nice exhaust. overpriced new, but decent price if you find a used one in good condition. yes, hangar will break. mine broke last week. passed by a muffler shop and got it welded back on.... it'll probably break again. a little loud, but the silencer makes it quiet, but looks dumb with it on. love the look and shine.

 

[Matthew]

i have the HKS, love/loved it, so when i put my turbo on i kept the angle and the muffler and had my 2.5" turbo back welded to it. i have pics if you need some more.

 

[digitalpro5]

Wrong not 1-2 hp, in the low rpms it produced 3.8hp and at high rpm's it produced like 5.8hp and I'am not bullshitting I have the august issue of turbomagazine it's an old issue but they dyno tested a P5 with the axle back and it made pretty good numbers for only an axle back.

Hum, if its that much, why do I feel like I lost low end torque. If thats really true, how cool!

 

[Matthew]

you will lose low end torque because you have less restrictions in your exhaust.

 

[Mike R]

Wrong not 1-2 hp, in the low rpms it produced 3.8hp and at high rpm's it produced like 5.8hp and I'am not bullshitting I have the august issue of turbomagazine it's an old issue but they dyno tested a P5 with the axle back and it made pretty good numbers for only an axle back.

Could you scan and post that? I'd like to see it.

 

[ehhjall]

Back to Basics

you will lose low end torque because you have less restrictions in your exhaust.

Hey Matt, Hope you don't mind indulging my ignorance, but I thought freeing up exhaust gives horsepower and torque gains? (scratch)

 

[Mike R]

You will gain HP AND torque, just not very low RPM HP and torque. You gain mid/high RPM HP/torque. Everything is a tradeoff.

 

[LapisBlueProteg]

not to thread jack but does anyone have theres for sale?
or know a good price!

 

[Matthew]

Hey Matt, Hope you don't mind indulging my ignorance, but I thought freeing up exhaust gives horsepower and torque gains? (scratch)

no problem. what mike said basically. when i installed minei felt that i had lost some low end power...but as far as my fav shift - the 5-3 shift - i was tossed back a little in my seat

 

[Subghetto]

Dyno Scans

Could you scan and post that? I'd like to see it.

Yeah no prob, Damn the size was so big I had to make them smaller so if you can't make out what it says I would save it then go to paint or photoshop and zoom in the text unless someone knows a better way to post it this was the best I could do so it made +3.8 hp and +2.5 tq in the low rpm's and in the high rpm's it made +5.7 and +3.5 not bad. They also said they lost -1.6 hp and - 0.9 tq with the silencer. For those of you who care it' s the august 2002 issue of turbomagazine Vol 18. No. 8.

My bad for scanning them crooked and s*** it was mad annyoning and I rarely scan images.

 

[Mike R]

Thanks! Not bad loss with the silencer.

 

[Phoenix5]

What??So you guys don't recommend the Hi-power because of the ******- up hanger??

 

[digitalpro5]

What??So you guys don't recommend the Hi-power because of the ******- up hanger??

s*** just as long as it doesn't drag around under the car and get damaged, I'm fine if the hanger does come off. Simple fix by a muffler shop. But lets just not have that ever happen though :-D

 

[Mike R]

What??So you guys don't recommend the Hi-power because of the ******- up hanger??

No, I love mine. I was kinda upset that a $300+ MUFFLER didn't last a year without any problems. I welded mine myself and added some extra support. No problems since. Heck I even convinced one of my female friend who is not even in to cars to buy one for her car. (naughty)

 

[Phoenix5]

Damn!!Out of curiousity,what does she drive??

 

[P5MoJo]

i too suffered a loss in the low rpm's when i had the exhaust, but for some reason on cold nights it ran even better than stock, but in the heat it felt like crap!