Nerdskateful

Hello just a got a couple of question about exhaust and stuff. I want to buy an exhaust for my 91 civic hatchback and came upon the HKS LES-H05. I like it because it doesn't sound to loud (from videos I've seen) and looks like the stock Si one. So my question are as followed:

1. Diameter is about 2 inches. Would that be too small/B series friendly? (I have a b18c with 2.5 outlet headers)
2. Anyone have past history with power gain/overall improvements?
3. Other possible exhaust?

Thanks for your time and relative inputs!

solorex

I've run a 2" Scorpion exhaust with my B20vtec. Was it choking the engine? Probably.. but it still put down 210whp with a 2.5" collector header and it sounded awesome (not too loud). If you are wanting to get the most hp then you need 2.5" or bigger.

Nerdskateful

Thanks for the input dude. Yeah I was thinking the HKS would be too small. I also found apexi ws2 I and its 2.36 inches. Just wish they didnt have such a large exhaust tip. I want something quite also.

chriskory

I just saw the HKS exhaust on ebay, and watched this video.


Seems cool, well made, and reasonably priced.

Nerdskateful

Yeah that was one of the videos I've seen on that exhaust.

phunhaus

I transferred the same engine setup from my old EG into Tif's EF and in doing so went from a JIC Bullet exhaust to the HKS Sport exhaust and lost a reasonable amount of power. The biggest difference, though,was the reduction in noise. Well worth the power loss, IMO.

Nerdskateful

Yeah I want to gain some power. Making the EF into a track. I just hate having a loud exhaust. Seen some apexi videos and it doesnt sound too loud.

my91tealhb

Tanabe also has a nice exhaust for EF. I have one on my car its super quiet. There is a video on the tanabe website.

Nerdskateful

Cool, thanks dude

crxmadness

If ur running a stock ecu then hks will be fine and u will have the best sounding exhaust on the market. I have a b16 crx with that hks exhaust and its ****.

If your future plans are to upgrade and tune then a custom exhaust is the only way to go.

Nerdskateful

I've got the tanabe exhuast. I'm soooo happy I bought this one. It's incredibly quite and it's a nice diameter.

Hefner

I will be running a B20 with Skunk 2 cams in my 91 CRX HF. What size (2.5" ?) exhaust should I use? I want it pretty quiet during normal cruise but would like to hear the power come through during hard acceleration.
The Tanabe sounds like it would be a good choice. What options do I have?

4drEF

It seems you are willing to spend some money so why not go custom?

Freemananana

iTrader: (3)

Thermal R&D makes an exhaust of that size (~2.5"). I have the 3" exhaust and love it. It's not bad compared to some exhaust systems I've heard. It is pricy though, $500 for the 2.5".

Maybe this is a bad suggestion for the money. The 3" Thermal is the only 3" exhaust for our chassis and it's $600 if you want to go all out.

BLU CIVIC

I have the Tanabe Medallion on my sedan and had the GReddy SP2 on my hatch. Both are great exhausts. I would skip the HKS, too small diameter.