my evo currently has an RRE tune, test pipe, and cosworth drop in filter. it made pretty good #'s(see sig), but now i'm hungry for more power.

i'm thinking of getting a short DP, RRE stealth sideways cat back, an AEM intake, and UICP in hopes of hitting about 340awhp on their dyno.

is there anything else i need with those mods?

thx.

 

First off, nice power you have for the mods . With the new combo of parts you're mentioning though it's unlikely you'll reach 340whp w/o an o2 DP, 3port, and fmic. It's been said that short downpipes are essentially worthless because the o2 housing is the most restrictive part.

For reference when I got tuned and made 330 whp and 323tq, I had a Perrin TBE, AMS UICP, aFe intake, and cobb turbo inlet. You'll honestly probably be closer to those numbers if you're tuned at 25psi.

I'll soon be going in for a retune with an ETS 4" fmic, o2 DP+TP, 3port, UR LICP(not that this will do much) and a different catback portion. With my new mods I'll be shooting for mid to high 340 whp and same for tq.

 

this is exactly why i post this, so i don't waste money on useless mods.

what is a 3 port?

 

From what I understand they control and hold boost better.

very informative thread on 3ports: https://www.evolutionm.net/forums/ec...ting-data.html