DreamRWDSE-R

Well, on my 94 classic I have a HotShot header(best in the market) and a stock cat all the way back. The previous owner didn't care too much for a noisey exhausy, so he kept it that way. My main question is, what kind of pro's and con's will I have if I decide to throw on an aftermarket catback? I really like my torque, is it gonna drop much? And, am I reaping any benefits having a header with stock exhaust?

Oh, to make the subject easier to deal with, I also have a CAI and reprogrammed ECU by JWT, running 93 octane all the time(required).

My other question would be:

What's different between a
USDM SR20DE and a JDM SR20DE?

Or, is it just for bragging rights, "I've got JDM!!"

DreamRWDSE-R

Oh, see you at track day!!!

Matt Vassallo

depends on the year of the japanese sr20de, but some of them have higher compression.


i believe they are all high port as well.

DreamRWDSE-R

ttt, thoughts peeps...ideas....comments...something...

DreamRWDSE-R

ttt, still wondering about my first question...

92_Sentra

The Japanese SR20DE is pretty much the same as the 1991-1993 US SR20DE. The Main difference is the lack of the Emissions parts. All Japanese SR20DE's are Highport, like the 91-93 SR20's. On some Japense SR20DE's there is a Large factory exhaust manifold that is a lot bigger than the Factory US Manifold.

Some SR20 motors came with a 10:1 compression, which is higher than the factory 9.5:1 compression that the US motors have. These motors normally come from the United Kingdom, and are highports with a Red valve cover like the DET's have.

And as many people know the Japanese motors normally have low milage. But thats what is different on Japense SR20DE's vs US SR20DE's.

92_Sentra

I personally don't think an exhaust is needed for our cars until you either spray nitrous or go turbo. I have ridden in many se-r's, all with different mods, and I think the exhaust doesn't make it feel as strong. It does pull harder up high, like on the interstate.

I convinced a friend to take off the exhaust on his 93 SE-R and he likes it a lot more now.

DreamRWDSE-R

Thanks for all the info guys, I'm more than happy the way it is now, exhaust will come soon enough with my upcoming swap.