Im going to purchase a dp soon...how much hp does a dp release......

 

A Standard accepted is about 20hp from a downpipe.

 

If you are getting a downpipe try to get a stainless steel downpipe.

 

You can expect about 15 at the wheel. It's a bitch to do so search for previous posts on DP install tips. Don't wanna break that stud....

 

from what i've heard stainless steel does
nothing but look spiffy, and cost you more money.

 

SS dps don't rust out like mild steel. A ss dp will last longer than your car.

 

also jet coating it to help keep even more heat out of the engine bay sounds like a good idea, not too expensive either.

 

The DP is supposedly good for 15-20 hp and decreases underhood temps but the really cool thing about it is the better quicker turbo spool and the "Oh so sweet sound it makes now." It is a definite must for the RX-7.

 

Yeah, it definitely lets the heat out of your engine faster. Another thing, I would make sure that it has a good mount for your O2 sensor. The Bonez one I have was an easy install.

 

The M2 was pretty simple as well. I never had a problem with bolts coming out or anything. The sensor mount is in a pretty easy local as well. I can even take the sensor out with out removing anything to get to it and that is from the top of the car.

 

I had no problems with my N-Tech dp either.

 

I have a stock FEED DP from a jspec rx-7, mounts ofcourse are OEM and is a perfect fit. THe dp bolts on flawlessly. it is SS and I also wrapped it with fiberglass wrap and ceramic painted it with a 1200 degree coat to keep the heat in and out of that already hot engine bay. PM if interested.

 

20 HP IS A BIT OPTIMISTIC. I don't see stock FD's with only a DP making 240-250rwhp.

Realistically, i'd say 2-5hp.

What drastic changes it does make, is lowering heat, boost response, and a little louder.

 

But remember that 15-20 hp increase at the engine is not a 15-20 hp increase at the wheels. Plus a dp gains more from other mods. The more flow the better gains that will come b/c of the dp. A stock setup with a dp will not gain like a modded setup with dp.

 

Excellent point. jonboy's right.

 

That's what they say anyways. It's somewhere around that.

 

Facts: SCC measured another 15rwhp by adding a downpipe to a car that had intake/exh/ecu.

 

yea i agree with everyone, about 15rwhp gain.

1FAST7