The only suggestion I've had so far on an aftermarket blow-off valve is to keep it stock, something about this car not idling properly with aftermarket blow-off valves. Anyone have a good experience with an aftermarket blow-off valve? If so, could you please post the manufacturer and model?

I have a 2003 Mitsubishi Lancer Evolution VIII, loud is good!

Thanks!

 

I run the Forge RS DV. Its the best one i have ran so far(JDM MR DV, original Forge DV, stock). It's not "loud" but you can definitely hear it.

 

Forge FTW! I have the original. Works great. Please search.

 

get a jdm mr type bov (stock mits.) good enuf sound with a open element filter and stock like driveability

 

I got a 1g BOV for free, Gus Modded it for 10 bucks, welded up an adapter for free, and it's shut solid to over 30 psi in Gus mode. Tough to beat that value, so I thought I'd throw it out there. Plenty more info in the archives.

 

if you want it loud, then get an open air filter on the intake. Then get a greddy type-s BOV. That is a loud combo but is still full recirculating so you won't have driveablity issues. I ran that combo and you can definitely hear the whistle/whoosh sound...

 

^^ +1 greddy types is high pitch and loud!

 

What you're calling a blow-off valve is, in reality, a diverter valve, dumping the air back into the intake. Anything that vents to the atmosphere (VTA) runs the risk of affecting the way the car runs. That being said, if you're stuck on the whoosh, the APS BOV diverts some and VTA's some and has had good results. Otherwise on the '03 I'd get a stock MR BOV to retain complete diverter function.

Good luck.

 

I am currently running the APS dual-vent. Don't get it if you want loud because it definitely isn't compared to the full-recirc Greddy Type-S I was running prior.

 

I thought the type s was replaced by the type rs and they dicontinued the type s.

 

tial ftw! 60mm sounds hella badass

 

^^^ yeah they lost the patent to it so they stopped making it. You can still find it on ebay though or get one used somewhere else. I wouldn't recommend the RS since it VTA's

 

i love mine it sounds PURRFECT! what is the one that makes the really loud FLutter?

 

HKS SSQV or there is one by TurboXS called the RFL (really fking loud) but they are both VTA valves.

And its not flutter.. flutter is caused when the valve is adjusted to tight and is unable to vent properly on partial-throttle lifts.

 

First off, here is the search page:
https://www.evolutionm.net/forums/search.php

Secondly, for a DV:
Forge, APS, IX (JDM MR) DV

A better first mod would be a K&N panel filter. But switching to a non-leaky DV would be 2nd. If you are doing it for the sound - get a Honda.