hi guys im new to the site and i just recently bought an 03 evo a few days ago.. i have an injen intak with uicp and an hks BOV on the way but i was wondering if theyre any free mods that i could do to make it have a lil more power or somethin thanx

 

Not really "too" much you can do like with DSM's.
You can take the flapper out of the muffler, and the restrictor out of the clutch line. I don't think there's really too much else.

 

If the car isn't custom tuned for the intake you could remove it... free power

 

dont use the HKS BOV, search on here for more info, I took mine off (was installed by previous owner) and the car never ran better!

 

OK, all three of your mods will gain you about 0 AWHP. Sorry but it is true. The stock airbox is fine up to and just over 400AWHP. You are at 240 AWHP. Keep the stock box and stock filter. The BOV, not a good choice. You could have gotten an MR Diverter Valve and saved big $ and gotten a better product. If you get rid of both of those your upper IC pipes will probably not fit around the stock air box. So, lose that too. If you are going for power mods you should have gotten a down pipe and a flash. If you were going for sound (whoosh on vent) you made the right mods.

Bling-----------Power
Intake---------Down pipe
upper IC------Lower IC
BOV------------Hot-side

Free mods:
Boost leak test and tighten clamps as needed.
Muffler flapper
Gut cat and add antifoulers on O2 for no SES
Clutch restrictor removal
Then get into weight savings

 

A dp on its own is pretty much useless on its own also. like 4-5 hp on a dyno is all I would give to that on its own, now coupled with a decent turboback (megan is good and cheap at 500) which would be a dp, test pipe, and catback, you will pick up about 25 hp at the wheels. Couple that with a good reflash and a boost gauge and manual boost controller, you should be in the 280-290 wheel hp range.

 

yea i was plannin on gettin a turbo back eventually i was lookin at the ams kit its nice by what i hear and has a great tone... and bout 944 soo thats not tooo bad....

 

Go for the Do it Yourself Intake scoop. just a 5"x8" piece of medium guage stainless, three holes, no proven HP gains, but its gotta help (really made a diff on friends xB)

 

add some decals and call it good. Maybe some useless emblems also while ur at it.

 

There is no hp gains with a cold air scoop. You are just going to compress the air on the turbo and its always hot. Compressing air increases temperature. PV=nRT from law of thermodynamics.

 

Has anybody tried to back out the screw on top of the mafs with the evo...worked fine on my 95 eclipse....

 

You can reroute or block off coolant lines to throttle body which are there to keep throttle body from icing on freezing startups. This is about as free as you can get as is pounding the guts out of your cat.