Originally Posted by Emperor

Actually i have heard bad reports about some HKS products. No doubt some a regood but not all; actually this applies to alot of other manufacturers as well.

Jondog: I cannot believe what the mazda 3 owner said. What has a auto trans got to do with back pressure. Its more to do with the engine than the trans. If all back pressure is remove; yup you get power but some sacrifice to low end. Some back pressure is require as the exhuast comes in pulses; if not all cars will come with 10" pipes. Its more like how smooth the exhaust can flow rather than how much allowance for the volume to flow.

The intake follows the same pulse and velocity principle. Alter the diameter too much or shorten the intake too much and HP will be affected, hard to say for better or worse.

Back to the main question. Any lobangs?

Originally Posted by coupe07

put time put place... mai keh gong....

Originally Posted by Low rider

Haven't take your kopi and this come again ah...

Fair .. i put place ... u put time ... we have a run .. Give u 10 lamp posts ahead of me....... Try your Knightsports & my hello kitty ...


I meant 2.4km ran on your legs .. not in your car

Originally Posted by Low rider

Angry ah.. Must "Tiao Chiu" down already ...

Originally Posted by coupe07

Fujitsubo and Knight Sports are actually not the same. It just happen that they look exactly the same and manufacturer is fujitsubo.

If u read this japanese rx8 magazine that compared between these 2 exhaust, the knight sports one actually perform better than the fujitsubo legalis R.

So performance wise, they are not the same....

Originally Posted by tems900

based on FGK & KS website, seen like the pipe size is same & the look also, but is possible that the size of the pipe & e way the pipe is route within the muffler is different, does e jap maz. state the different in spec. of the 2 exh ? what is the different in WHP ? i suppose they r using same car for dyno & testing the 2 exh.

Originally Posted by coupe07

all in jap wordings, so i cun understand..

i believe there is a difference in dimensions at some parts of the piping. Most likely the piping inside the muffler is different too.

Outlook from the naked eye is definitely the same.

From the mag, i shld believe the same car is being used. They actually tested all the first generation exhaust made for the rx8..... dunno whether u have seen the book or not, its dark blue in colour, the front cover.......

Originally Posted by Low rider

Some Jokers had whacked the car without any exhaust .... I think thats' easily the best sound & set-up for the 8.

Originally Posted by coupe07

who is the joker, ask him come out..... hear say its a blue 8.

Originally Posted by coupe07

who is the joker, ask him come out..... hear say its a blue 8.