I have a d15b7 engine. I'd like to turbo it in less than a year (maybe sooner if I get the cash).

The exhaust piping has bent and is causing noises. I'd like to upgrade to a higher gauge piping. Right now I got the stock 1.75" (I think). I'm trying to decide whether to put 2.25" or 2.5" catback piping along with a magnaflow muffler. Right now the car is stock. No mods whatsoever. I'm planning on putting turbo though and I don't want to change pipes twice. So what's the best piping size to put without losing too much power and sounding like crap while I'm on stock setup.

 

if u going turbo 2.5-3inch is recommended

 

Can i drive my 92 civic (d15b7) with a 2.5" stock for a while until I get my turbo on?

How bad is it?

 

sure why not

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civic_driver &raquo;</TD></TR><TR><TD CLASS="quote">Can i drive my 92 civic (d15b7) with a 2.5" stock for a while until I get my turbo on?

How bad is it?</TD></TR></TABLE>

Yes, you can have it on. You might lose a little low end, that's about it.

If you're going to turbo your D-series, I'd say don't go with something too large. That is, if you're going to be boosting at stock levels. Assuming that, I wouldn't go larger than a 2.5. A 2.36 setup (60mm) is also sufficient, I think. Apexi exhausts are 60mm, and I believe so are Greddy.

You want to have good flow (diameter won't matter TOO much in stock psi levels). Have good flow and a straight through canister to maximize power.

 

Will 2" be okay for up to 200hp on a d15b7?

How about 2" on up to 250hp on a d16z6?

Reason I'm asking is I'm planning on a swap once I ruin the b7 and I don't want to change exhausts until at least I hit 250+hp

 

If 250Hp Go With 3Inch 200Hp 2.5 don'tgo 2.5 250Hp u don't won'tit to sound like a bean can u won't the deep v-tec honda sound