Been thinking of getting a turbo back exhaust but don't know what to really get there is a lot on the market. i'm looking for something that will give me good hp. tq. gains but one that doest drone too bad when i'm on the hwy.

i got a 2009 hatchback wrx.

 

If you don't want drone I'd suggest getting a catted downpipe with a resonated mid-pipe section. Will be nice and rumbly but not ricer loud. Hope this helps!

 

this. look at a catted CNT or ERZ downpipe. they're not as expensive as other brands like invidia but still fit perfectly with no problems for me. as for the catback depends on what youre looking for whether it be looks or fitment.

 

i was thinking of getting a Perrin down-pipe because its catted and has a divorced waste-gate but i guess my only prob is i don't know if anything will mate up to it or if ill have to mess around with it?

 

i was actually thinking about getting that exhaust. how is that working for you do you get compressor surge.? and how is it in the cabin while you drive?

 

https://www.i-club.com/forums/used-aftermarket-car-parts-sale-99/fs-08-wrx-sti-parts-new-used-pics-226685/


theres youre perrin downpipe right there! as for fitment you'll be fine you wont have to tamper with it as long as you get an aftermarket catback to go with it. if you put the downpipe with your stock catback you may need a 3"-2.5" adapter.

 

thanks i was actually gonna put aftermarket on it i just didnt want to buy it and it not fit.

 

and nope no problems whatsoever. i have a little drone because im running the invidia n1 race and i have no resonators or flex pipe so its supposed to be on the loud side. make sure you have engine management though.

 

yeah i got mostly everything im running the stage 1 on cobb and i got a tomei exhaust manifold i bought when i was in japan (not installed) just need the rest of the exhaust before i bolt things on

 

you want to make sure the flanges are the same, between the DP and the cat-back.

example: perrin dp is flat flange, cobb cbe is donut flange. they won't mate up properly. i'd say, get the 3" flat flanges, but most muffler shops have them on-hand and can cut and weld in about 10-15 mins tops if they know what the hell they are doing. go 3" all the way back.

the blackhole will consume you, the blackhole of endless modifications, that is...

have fun!

i personally have a tomei gtspec uel header to perrin catted 1pc divorced bellmouth dp to cobb cbe. sounds nice, not too loud. no resonator either. you want quiet?, stay stock.

but... you will get a drone noise at certain RPMs.

if i was you, i'd look at a maddad whisper or a borla hush cbe if you want quiet but still have a high flow cat. catless = loud.

 

not necessarily true...

need to make sure the flanges are the same.

 

Fosho lol just as long as the drone ist too loud im fine with it my buddy had a invidia t.b. and megan unL headers and it was ridiculously loud couldn't hear the stereo lol just trying to avoid that.

 

the invidia tbe is what did it, not the headers. he probably had catless too... catless are wayyyyyy louder.

my headers actually made it a bit quieter imo with my new tune.

you can dynamat the interior floorboard as well if you want quiet.

wagons are going to be louder in the cabin than sedans.

just get a louder stereo! LOL

 

LOL working on the stereo prob will dynamat the car and it is a wagon... wagon mafia lol. do you know of anyone who can pro tune in cali? after exhaust looking to get some okd igniter coils, cai and if i can find some tgv deletes and thats prob the extent that ill go.

 

GST Motorsports in Hayward. or if more north, EQ Tuning in Fairfield (Travis).

that's what you say now... lol

get ngk or denso iridium (one step colder)

aem cai (carb exempt) only cai i think too.

tgv deletes? I just sold mine! nah. but check Grimmspeed.

i'd prob get turbo inlet as well, 3mm phenolic spacers.