I just finished installing the ETS 4'' core on my evo x, i went for a test drive and there is a weird sound coming from the engine bay!! Installation was a breeze but when i went for a drive it seemed like every time i started to build boost it starts to sound like either a huge intake suction noise or a sound that resembles air escaping through one of the silicone couplers... It's my first intercooler so i just dont know if its SUPPOSED to do that since its a bigger core or if something is wrong i know i tightened the couplers but if anything i think that might be it... Can anyone share any input? has anyone encountered any issues with installation? or heard any different sounds after installing? thanks for the guys.

 

Sounds like maybe you didn't attach all of your couplers tight enough when you re-installed them. I would do a boost leak test to be sure.

EDIT : If you don't have a boost leak tester or even know what one is, just take some water and mix it with a bit of soap and pour that water wherever you think the leak might be coming from OR everywhere like I would, just to have peace of mind. : )

 

definitely sounds like it is a coupler issue... i had that same exact sound on my STi. Check all coupler locations.

 

leak fo sho. reposition and tighten dem ho's

 

What kind of clamps are you using?

 

Thanks guys! I figured that was it even though Im sure I tightened the couplers. I just wanted to be sure. I'll take apart the front end again and re position/tighten all couplers l. I'll keep you guys updated. BTW diff between stock was ridiculous

 

Your boost should hold more constant as well. Glad you figured it out!

 

 

what is different between stock? power? size?

i ask because that is going to be my next mod, and i am getty like a little school girl to get it.

 

lol well, here are side by side pics of the 4" core vs stock.


As far as power gains, im not too sure but here's a link to a review a member on this site made. hope it helps
https://www.evolutionm.net/forums/ev...tercooler.html

 

Ok so even though it was cold/rainy/snowy in NJ i went outside, took the whole front apart and tightened up the couplers. Everything is all good now thanks guys

 

WOWSER! big difference

nice! glad you got it.