2018 WRX Invidia R400 Catback Best Exhaust! Review

An in depth review of the best catback exhaust for the Wrx. The Invidia R400 Quad muffler exhaust design, maximizes flow while creating a deep superb sound. The stunning shape and quality of the catback exhaust is amazing!

[@epicpeaker3155]

I love it! I searched and watch everyone's videos on this exhaust and other types. Even though this video has been done a lot of times already. I know there are people like me, that need to see them all before making a big purchase like this.

[@epicpeaker3155]

This is the best exhaust! I've heard muffler deletes., J Pipe to stock exhaust, etc. They sound terrible. This exhaust is, perfectly in the middle. Great for long distance trips or cruising. If you want it louder get a J Pipe. MORE...Get Headers, or GO catless. This is great starting out or leaving it for good. You will SAVE money in the long run by getting the R400.

[@JJ-rf7dg]

Thank you for the video. I'm doing the same and to see what's best for me. I like the Invidia a lot so far.

[@robertpurdon2907]

Just bought a 2018 can’t wait to install this exhaust and a few other goodies

[@epicpeaker3155]

I would get Accesport first then exhaust. Good thing about CBE is that you don't need a tune!

[@robertpurdon2907]

Kinda why I wanted to get the exhaust first cause I want that sound. Then get the accessport with MAperformance 91 tune

[@epicpeaker3155]

I would have got exhaust first too. But I disliked how the car drove on the stock tune. Every car and person is different. So I had to get the AP first.

[@skyraidfpv6753]

@@epicpeaker3155 I also got AP first. Gotta get rid of that boost dropoff at 4k rpm. Stage 1 91Octane OTS tune makes a huge difference.

[@adreyuu7548]

Awesome video. Wasn’t sure if this was the exhaust for me. But now i know for sure.

[@epicpeaker3155]

Thanks! The R400 exhaust checks a lot of boxes. Great sound, very stylish, durable and good power gain. Also not so loud you neighbors won't leave notes on your car. Only cons are, it's a bit heavy and a little pricey.

[@tn7778]

Great video. This is probably the best exhaust close to a subie tumble

[@epicpeaker3155]

Thanks.

[@renggorenzzo9610]

Just ordered mine I'm so excited to install.

[@epicpeaker3155]

What car are you installing the R400 on?

[@latinknocka]

Excellent video. Very detailed 👍 Subscribed

[@epicpeaker3155]

Thanks! I noticed other channels you subscribed to, and your uploads. We share a liking for the same good music!

[@edubbz718]

Nice! I'm saving up for this bad boy, hopefully next black Friday. How bad is the exhaust smell inside? That's my only concern from what I've been seeing in most of these vids/reviews.

[@epicpeaker3155]

Both the catalytic converters are still on the car. The R400 is after the cats (catback), so there is no smell. You get smell if you replace the J-pipe (downpipe) with a catless one.

[@jasonlong1240]

Sick man! Love the exhaust tone.

[@epicpeaker3155]

Thanks. It was really scary when I did that freeway pull and my Gopro was on the outside of my car.

[@jasonlong1240]

I’m sure! Looked dope though. Are you gonna make more videos? I hope so.

[@itzdandroid3265]

Love invidia a lot, but this exhaust was a bit too quiet for me 😅

[@bignoe1453]

Does it give you good pop and how many aftermarket parts have you put into your car

[@epicpeaker3155]

I had the pop from the MAPerformance 93 OTS map. The R400 makes it a bit louder. I think 2018+ has better sound insulation and thicker glass, so car is quiet inside. Also R400 isn't that loud as it has 4 mufflers, just deep sounding. I have stock airbox with drop in K&N. Perrin turbo inlet. Boomba BPV and R400. The intake noises are much louder than stock without a CAI harming the motor. I wouldn't put on CAI without a protune. I like the sound it has with this setup. It sounds like more of an explosion than a long pssst sound.

[@jyemitchell6982]

I am looking at getting this for my 2016 CVT. Not too sure how different itll be to the manual though

[@epicpeaker3155]

It'll sound awesome! These cars definitely need more sound.

[@jtd3d351]

Damn good video

[@epicpeaker3155]

Thanks Joe! I have a Demons Eyes video coming soon.

[@anthonywrx449]

Wanted to ask... I just installed the invidia Gemini r400 catback on my 2018 premium wrx and install wasn't bad but trying to get tips centered wasn't fun.. did yours line up easy?? I have redline olm exhaust finishers they are thicker than stock maybe that's it really close to touching the inside on both sides..

[@epicpeaker3155]

Mine were a bit off also. I used clamps to adjust them. The tips are huge. So they are tight, even on the oem bumper/diffuser. There's a link at bottom. Try the clamps or get aftermarket hangers. Hopefully you won't melt your finishers. kzbin.info/www/bejne/rJ3ZqnWfjtuUq6s

[@anthonywrx449]

@@epicpeaker3155 hey thanks for getting back to me... love the sound of the invidia with my cobb big sf intake true stage 1 now.. thanks again man for the tips..🤙

[@epicpeaker3155]

Subispeed just uploaded a video on catback adjustment. They loosen all the bolts on a R400 and reposition the exhaust. I would do that before using clamps . Watch "How to Adjust your Catback Exhausts" on KZbin kzbin.info/www/bejne/h6HbeK2bgrpqaK8

[@anthonywrx449]

@@epicpeaker3155 yeah I've watched and tried all that,run out of adjustment where it Y's off as I tighted it just pulls back in.... ordered two positions hangers from grimmspeed they be here in two days. I let u know if that works..thanks man happy fourth be safe out there🎆👍

[@epicpeaker3155]

@@anthonywrx449 Thanks! I was thinking of getting the GS hangers too. Let me know if they work good.

[@JakkMann85]

Oh hey, from Utah

[@epicpeaker3155]

Yes. My brother was visiting from PA. He was shocked, Subaru's everywhere!

[@sachinlc]

Sounds good in your GoPro footage...

[@palphimsurgtech]

Super stoked that I am getting mine installed next week however mine might sound different from yours since im all stock.

[@epicpeaker3155]

I'm stoked for you too. You will love it!

[@wolfovodin7193]

That’s actually a pretty quiet exhaust it sounds like

[@epicpeaker3155]

It is pretty quiet if your car has a stock J-pipe. But way louder, and better sounding then the stock exhaust. Also not much drone. Now that I have the Cobb J-pipe, it's loud enough to annoy the neighbors but not enough to call the cops. The Wrx isn't my daily, so I don't start it early in the morning or late at night. The cold start is loud AF!

[@wolfovodin7193]

Epic Peaker nice! I figured a change of the down pipe would help with that a bit. If you don’t have one already, you should consider making a video on it. I was considering swapping my daily from a Mustang to a WRX because of my family and I want to figure out which exhaust sounds the best. I don’t like quiet cars lol

[@epicpeaker3155]

Here's my Cobb J-pipe video. kzbin.info/www/bejne/rYbYdWV5Yt1rgbM I like loud exhaust too!

[@xManstah]

Does this exhaust need tuning? And also does it need additional parts or is everything in the kit?

[@epicpeaker3155]

No tuning needed. Everything is in the kit.

[@skyraidfpv6753]

Have a shop cut out the resonator and weld in some pipe. You'll hear the turbo spool :) I also own a 2018 WRX in crystal black silica! Here in New Mexico, hey neighbor!

[@epicpeaker3155]

I was told it was only $100ish to do that. I asked about if it was stainless steel and he said no. And there was only one location that did SS and it was $300. I might still do the resonator delete or might go Tomei to save weight. But if I did the Tomei I would probably have to use the silencer to defeat the noise and sacrifice the awesome look of the R400.

[@KingDilanco]

How is that gopro mounted at the back seat?

[@epicpeaker3155]

I didn't think it worked that good. Wasn't planned, I just improvised in the moment. Probably have better results with a suction cup on the back window. I've used the suction mount on the sunroof glass with much better results.

[@mattr1656]

2021 wrx (non sti completely stock).. super torn between q300 and r400, really just want to avoid drone on the highway/not to be obnoxiously loud but do want to liven up the car a little bit. Worried the q300 might be too quiet for the 1K price tag... any input would be great!

[@epicpeaker3155]

There's a lot of good catbacks out there. My R400 still looks new. Sound and noise level is subjective to each person. My car now has intake, non resonated J-pipe, headers, and full tgv deletes. It is NOT too loud for me (even on the highway and WOT) and I'm 48 years old. If you're completely stock I would go R400 for sure. It gets a bit louder with more mods. Not sure if you are planning more mods after the catback though. Maybe the Q300 if you plan on doing more mods and want a quieter sleeper car. The cold start will be significantly louder though, with either catback. So if you have jerk neighbors it might be better to get the Q300. Don't get the Tomei if you work early in the morning.

[@mattr1656]

@@epicpeaker3155 thanks so much! One of my neighbors has a straight piped older model wrx which is very loud. Was hoping not to be that loud, probably won’t be adding a j pipe for whole so sounds like r400 is the winner

[@sachinlc]

How’s it Rumbly????

[@Jonxdosoo]

Did you use the stock exhaust hangers?

[@epicpeaker3155]

Yes. I also used some clamps to fine tune the fitment. It's not perfect but it's close enough for me.

[@FlameingPandas]

hows the drone? good? bad?

[@epicpeaker3155]

I don't noticed any. It just sounds good! In fact I'm thinking about deleting the resonator for a bit more turbo sound in the exhaust. The Shaddix has a video where he has a before and after.

[@shenray337]

Nice video man. Do we need a donut gasket too?

[@epicpeaker3155]

Thanks. You'll need an adapter gasket, if you have a stock jpipe. I got the Grimmspeed one. If you have an aftermarket jpipe get a regular 3in Grimmspeed one. Even if Invidia has one for where the catback meets the jpipe, having the Grimmspeed one is way better. The Grimmspeed ones never wear out, but the Invidia ones do. I'm not sure but I think when I got the Cobb jpipe it came with the donut gasket. It doesn't fit very good though.

[@sachinlc]

For the catback.

[@epicpeaker3155]

R400=FTW!

[@renggorenzzo9610]

2019 Wrx bro.

[@epicpeaker3155]

Nice!

[@jayguzman28]

im thinking about doing this mod for my bone stock car...i wonder how bad the drone will be

[@epicpeaker3155]

If your thinking about CBE, just go for it. The R400 has a resonator that eliminates most all the drone. This exhaust isn't loud either, just a deep tone. I personally would like it a bit louder. Perhaps a J-pipe or cut out resonator and weld new pipe would make it perfect. I've had girls comment that they like the sound of my car. Not a complaint yet.

[@jayguzman28]

nice!not really looking for anything loud just want the deep tone rumble 😬

[@epicpeaker3155]

It's not loud unless your floor it to redline. It sounds really good, but it doesn't give the rumble sound of the EJ motors. They have different headers.

[@jayguzman28]

Epic Peaker sorry forgot to mentioned mines a 2019 sti..im 85-90% set on this brand lol

[@epicpeaker3155]

@@jayguzman28 Oh awesome! It will definitely be louder than my WRX. Lol. Bigger motor and unequal headers. It will sound AMAZING!

[@rhysdriedger5381]

No Tomei makes for sad Subaru owners though.

[@epicpeaker3155]

Until the Tomei breaks... With the CAI, 3 in Turbo Inlet, Charge Pipe, TB Coupler and non resonated J-Pipe; I like having the 4 mufflers on the R400. Everyone's taste is different, I don't want an obnoxiously loud car. I'm getting Perrin headers soon and I think the loudness will be perfect. If I still want a bit louder I can delete the resonator in the R400.

[@ianholmquist8492]

WRX sounds boring and ricey with any aftermarket exhaust on it. That's why I never put one on mine. Traded for the sti and that's where it's at.

[@epicpeaker3155]

A guy caught up to me 2 days ago driving. He said "Your car sounds Amazing!" Guess it depend on which exhaust components and intake. I also have full IAG tgv deletes, Perrin headers, etc. Trust me, everyone says it sounds good, and it's not too loud and ricey as I have the 4 mufflers of the R400. Video sounds are crap to the real thing.