Hks

[NasbaTR]

someone please tell me why an HKS down pipe is so friggin cheap??????

[trek98xc]

Mostly because it blows. Its not a bellmouth design. Meaning, your wastegate cant breath.

[dans06lmt]

probably because it sucks, and thats the only way they can sell any

[bigbadbuddha]

If you want i'll sell you mine.... CHeap...

[NasbaTR]

i never said i wanted one lol

i just wanted to know why it was so cheap

i think i saw one for like 125

[Black Night]

i had the hks dp and got rid of it after 3 weeks....got the invidia bellmouth dp for 229 and have been smiling since

[PowerHouse]

Originally Posted by Black Night

i had the hks dp and got rid of it after 3 weeks....got the invidia bellmouth dp for 229 and have been smiling since

are you having any issues with wastegate flutter or boost creep?

[Vew]

Basically it's a poor design. It only meets one of the two problems of the stock downpipe (one being pipe diameter). If you compare your stock or the HKS downpipe, you will notice that there is a flat plate where the wastegate would spell gasses out. This forces the gasses to make a 90 degree turn to get down the main pipe, causing backpressure and turbulence, and you don't get your full horsepower potential. Most of the good downpipes will have a bellmouth design or a separate pipe for the wastegate.

HKS probably realizes this after many WRX owners stopped buying it. I have known people to custom weld a pipe to eliminate this problem on the HKS dp.