Newbie here,

What exhaust that weighs the least and give the most WHP??

First off, if you are still driving your evo, I have no idea what is available for those.

Second - Are you talking CBE(cat back) or TBE(turbo back). Most of the power is hidden in the downpipe, which comes in TBE packages, not CBE

I'm pretty sure that most of the after market exhaust options out there put out roughly the same numbers. Somebody correct me if I'm wrong. In this case your decision will most likely based on your taste in sound.

When it comes to weight, you are going to want to look at some of the Titanium exhausts. I believe the HKS Ti weighs a mere 18 pounds. However, these tend to be more on the pricey side.

Try checking out the product review section, or go to a few meets to hear them for yourslef

yes I still dive the Evo.
and yes I was looking for TBE

I was looking at Perrin, Turbo XS and Megan for an STI

i had the meagan catback on my wrx, you can get them pretty cheap but they do look kinda ricey, but very loud

thanks debelle. yeah I don't care about sound, I just want to get the WHP! cause thats the goal

thanks debelle. yeah I don't care about sound, I just want to get the WHP! cause thats the goal

well then remove the whole exhaust system. you don't need an exhaust to run the car. and you will be getting the most WHP over any exhaust.

lol ok ok not to be an ass. heh but for an evo i like the Apex'i Noir Exhaust. Its pretty much an Apex'i World Sport Exhuast but black. If you live in cali you know what i mean. cops are real asses about modified exhaust.