Did your car throw a CEL?

Check your spark plugs first. Mine were fouled. A simple change fixed the problem.

 

pff, a guy selling an almost brandnew hks exhaust + invidia tp with cel fix for $470 here. it's like an amazing deal but after hearing all the bad stuff about hks, i don't know anymore haha.

 

What bad stuff?

 

power loss

 

Is that 2whp you supposedly lose really going to matter? If your MAIN concern is horsepower then get a 70mm single. If your main concern ISNT horsepower then everyone pretty much agrees the hks is the best sound exhaust for the s2k. Like I said the ONLY exhaust your going to FEEL anything with is a 70mm single. That 2whp is only going to matter in a dyno pissing contest like someone mentioned on here. Actually your car might even "feel" faster with the hks because the noise makes it appear faster.

 

Just buy it already. The sound will make your driving experience better tenfold.

 

yea i had CEL for misfire in cyl. 1,2,3
and i changed the spark plugs but it was still misfired

 

def dont think this is a result of installing the exhaust

 

Alright, maybe before everything goes offtopic and alejo locks, the conclusion should be stated

HKS could cause a bit of power loss, but the sound it gives is so good that it's worth buying it.

70mm will always make more gains than 63mm regardless if it's FI or NA. (Still not sure if the statement that 63mm will give better lower end gains while 70mm gives higher end gains is true or not)

 

There should be a "There's a rumor saying that the..." in front of that statement.

Dan