Any opinions on WORKS stage 2 turbo kit and Corsa catback?
 

Pretty much planning on purchasing both in a few days... putting on my BRZ tS. Idea is trying to make it like it should of came from factory since being the tuned by sti model.... estimated power will be around 240 whp and 200 wtq on 93 pump.

anyone got some opinions or knowledge on the WORKS stage 2 turbo kit or the Corsa catback exhaust?

the turbo kit seems very safe with very conservative numbers.

The works kits have odd powerbands from what I have seen posted. They make a lot of concessions to stay CARB certified.

Personally, I would look at different kits. The ptuning kit has a lot of satisfied customers and has been proven if you want to keep a similar turbo placement, otherwise there is p&l, JDL, and other front mount kits.

The corsa exhaust has been discussed at length on the forum. Good sound, quality and fitment. A bit on the heavier side.

I would be getting the non carb certified kit. It just seems to be the most reliable kit from the hp/tq numbers its producing

I believe they're the same for either V1 or V2 that they're both CARB certified. The change would be in the tuning, but the kit is physically the same.


I would wager that the Ptuning or JDL etc would be the same, if not more reliable. You also have a much larger pool of long term examples running either kit. There aren't a whole ton of works kits running around.


If you really want a reliable FI solution at your power goal, JRSC or edelbrock springs to mind. Those are obviously supercharger kits but what is your actual goal with the car?

my goal is pretty much reliability first and nothing too crazy in terms of power. I do not plan on tracking it. My budget is no more than 6k. Invoice from WORKS puts me around 4.8k for the kit with some add ons and a tune. I looked up the Ptuning kits and those are definitely out of my price range.

6k budget would get you a full race or JDL kit installed. A base ptuning kit is 5795.00.

A JRSC kit is below 4k. Lots of options. Lots of reliable examples running around.

Do quite a bit of research and make your own decision.

Appreciate your feedback sir!

Corsa owner here. It sounds fantastic and makes the car go from almost whisper silent to sounding more like a V6/V8 engine.

Cold starts at 6am are brutal, I think my neighbors get annoyed sometimes. Also you will possibly get more attention from cops, try not to go WOT too much...

If I could do it all over again, I would choose the CSG Touring exhaust and pair it with an ace header to fly under the radar a bit more.

Jackson Racing pros:

-cheaper than Edelbrock
-makes the car sound like a Jet
-easy install (from what I’ve read)
-can install a blowoff valve for an even more unique sound while shifting
-reliable and track tested
-lighter than the edelbrock, giving you (potentially) better balance (25-50lbs from what I’ve read)

JRSC cons:

-centrifugal style supercharger, mainly builds boost in the higher RPMS


Edelbrock pros:

-Better powerband (it’s a roots style SC, lots of low end torque while still having lots in the high rpms).
-Edelbrock warranties your power train as long as you are under 36k miles or so.

Edelbrock Cons:

-slightly heavier than JRSC (50-100lbs)
-more invasive install as you have to put the Edelbrock manifold in your engine bay, on top of your engine
-mostly silent, no cool noises like JR SC.

Hope this helps in some way. I don’t know anything about turbos, lol.





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Thanks @HachiRokuX

Sounds like the perfect cat back for me then =] I am pretty sure adding the turbo will quiet it down a bit, so i've heard... Thanks for the info on superchargers but I am having my brother install the turbo kit and hes already done a bunch of turbo installs.

Cops around here are pretty reasonable and i have never been pulled for my borla catback on Impreza. So I should be fine. Thanks

Any opinions on WORKS stage 2 turbo kit and Corsa catback?
 

I’ve heard a lot of 86 exhaust setups and the Corsa is definitely top 5, imo. In the cold it gets extra raspy and sounds incredible.

Edit: Amazon actually has it for 887.32, but you’ll have to wait a month to get it. The black tip version is much more expensive.


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Works is meh. JRSC is the sensible choice.

I am definitely going to get the black tips =] will look cool since car is black. does the exhaust ever make any pops for you?

I like the power numbers but i'm not really looking for a supercharger. What do you feel is wrong with the works kit?

I haven't looked recently, but when it first came out, it was a lot of money for a kit that got very little power. It was designed to be the only CARB compliant kit, and so it has compromises that other kits don't have.

If I were going to do a street turbo, those cheap SBD kits are just fine. If I wanted to pay a lot for a kit, the Ptuning stuff looks the best designed.

Then again I've had the car for 5+ years now and I haven't added a turbo or supercharger. With a header and tune, the car makes enough power to have fun while not so much that you cannot wring it out. We have other cars for acceleration.

Didn't realize the SBD kits were much lower in price... seems like a bit too much power for me. I guess I am leaning towards the works kit is the conservative tune, non-invasive installation and saw a few posts commenting on the quality of the parts and stuff. Hoping the non carb tune will remove some of the compromises that i'm sure were made with the carb kit. I was considering just doing what you have done with the header and tune but wanted to go towards the FI route instead.

Every once in a while! Only way to make it pop all the time is with a tune I believe. Black tips will definitely fit your car.


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The problem isn't the tune. It's the routing. To make the turbo CARB legal, they leave the cats in, which means really odd routing of all the exhaust gasses. Also, there is no such thing as too much power if you're going turbo. It's not that Works kits are conservative. It's that they're compromised designs. If I wanted to stay CARB legal, I'd get a JRSC. If I wanted to go turbo, even the SBD kit, the cheapest out there, is a better option than the Works.

Love my Corsa! Especially the black tips. :D

It does pop from time to time on the overrun. I wouldn't do a header since it makes the exhaust brutally loud, adds rasp, and defeats the no-drone RSC technology.

[ame]https://www.youtube.com/watch?v=sl_kiPX58GU[/ame]

Its not that i need to stay carb legal, just need to be able to pass emissions when my time comes next year in RI. With the works kit im able to keep all the factory O2 sensors and cats in place. From what i've been seeing higher power numbers can result in less reliability... blowing rods for one.

You can blow rods at any power level. Its not 100% directly related to PSI or power.

You need to do research, man. In to your states emissions, in to what people are saying. In your specific case with your concerns a supercharger kit sounds like a MUCH better option for what you're trying to do.

Maintain all factory emissions and 02 placement, make reliable power, have a decent powerband. It all adds up.

Look at @CounterSpace Garage and their greddy equipped car. Just another example. Tap in to the resources around you and take off the blinders, lol. If it's what you really want and it meets your needs, great!! It just sounds like you're rushing in to a decision without due diligence.

Tuning is far more important than low numbers for a turbo kit. The WORKS kit is a big compromise to retain CARB certified capable packaging. Do you want a turbo kit that is a compromise right out of the gate?

JDL meets your needs better. WORKS is for people who need to retain the factory header for classing restrictions, or need CARB compliance. https://jdlautodesign.net/shop/ft86-...urbo-kit-v2-1/

will look into JDL. I am new at this, so I do not know how the kit is compromised. In what ways is it 'inferior'?

I just did a JRSC C30 Kit on my tS. I have flex fuel as well, but flex fuel is totally unnecessary for what you are looking for. I couldn’t be happier with the outcome. Plenty of streetable and trackable power. The car revs high, and wants to be revved high, so sure, there is more power there, but it still has plenty of grunt down low.

The JRSC is proven reliable, simple, light, and won’t interfere with your emissions at all! I understand your brother has installed turbo kits, but this will be a simpler install that the Works Turbo Kit, so he shouldn’t have an trouble with it.

With that said, and I’m biased towards PTuning because they do all my work and are down the road from me, but their turbo kit is easier the best out there. There’s a used 1 on sale on the forums right now, for about $3800. Granted it’ll make more power, but it’s definitely the most comprehensive set up turbo-wise.

I ran through all of this to find the best kit for my tS and settled on the JRSC, and powder coated the piping red to match. I highly recommend!

Appreciate the feedback! Mind if I ask what your SC kit cost you? Seems like thats becoming more of a possibility as time goes on... oh, and how does it sound?

The JRSC C30 Kit was just about $4,000. I also chose to purchase the JR Track Oiler (the SC version), as I do lightly track the car and wanted to keep temps down. Not required, especially because it looks like you are up in Rhode Island, it's not terribly hot all the time. If you want the kit was a CARB Tune, that'll run you an extra $1,000, but it includes am Ecutek Programming Kit (Cable/Dongle), Ecutek License, and the tune. Since you'll be running, at least it sounds like, the stock header and front pipe w/ original cats, the CARB tune should work just fine for you and will definitely simplify the process for you, and I've heard their tune runs really well -- actually may have been done by Delicious Tuning (someone please confirm that!)

Sounds awesome, you definitely get a lot of intake noise, even at idle, and a pretty cool sound out of the rotrek as it revs out. I also chose to upgrade the BPV with a Forge BPV (the stock one works, but has had a history of failing - not a huge deal and the Forge was pretty cheap), so it has a cool "whoosh" sound when coming off the throttle similar to the BOV.

With the JR kit w/o e85 or the high boost pulley, you'll be fine on the stock injectors, fuel pump, and clutch as well.

Others have mentioned the Edelbrock Kit, and I was very close to that kit as well, but the warranty wouldn't have applied to me since I already did a full exhaust and couldn't run their tune. The one big perk of the Edelbrock Kit is that it comes with a 3 year/36K mile powertrain warranty ONLY IF you use their stock CARB tune that also requires you to maintain the stock header/front pipe/and cats. Downside, I heard the stock tune doesn't run so great - so there is that, and its most expensive. Just wanted to put it all out on the table for you! Glad to see another Black tS getting boosted!!

If you really like the corsa sound, I'd suggest a SC kit to retain the factory exhaust. I would be interested to hear a corsa on a turbo car, as it would most definitely sound different. Corsa doesn't use conventional methods when tuning sound in the exhaust, as such it relies on the factory header/front pipe to cancel drone, and keep noise levels in check.

I love the black tips, But couldn't justify the extra cost for me in canada. It was already $1500CAD for the regular version :O
It pops all of the time on overrun In -20c temps. I have the back seats down most of the time just to hear it burble and pop. :D

As far as headers go, the only one I've heard that works is the FT86SF catted UEL, without ruining all of corsa's R&D. It has more equal length runners compared to most UEL's on the market, and the cat keeps the noise levels in check.

If it is turbo that you want for sure, Greddy T518Z kit is the one I would choose for the power level you mentioned. Otherwise, JRSC was my choice. And I would choose it again after two years and more than 20K miles.

For the turbo though, I would budget header wrap or ceramic coating plus oil cooler. And the tune, yes the tune, the best tune. Don't even think saving money on tune. The beauty of JRSC is that it is a total package including a very good tune from the factory. Just install and drive.

I would wait for the catback. I recommend making sure the FI is done and working reliably first. Then you can check the sound and decide on the catback later.

starting to lean heavily towards the JRSC c30 kit with their tune. seeing as installing a catback will make the most sense with how the SC works. Need to call them soon. When does the boost start to build on the JRSC c30 kit?

With JRSC, boost increases with rpm almost linearly. It is not like turbo that happens after a certain rpm. Or it is not like Edelbrock that boost is always there. If you want power immediately, you need to downshift simultaneously with pushing the throttle. The power after 5000 rpm is unreal compared to stock. 2000 rpm feels close to stock. I chose JRSC specifically for these characteristics for engine reliability and fuel efficiency. I still get the same fuel efficiency for normal driving. But it really burns the gas and delivers the power when I mean it.

I really like how it keeps the car driving the same. Is kind of a reason I am leaning towards this kit now. Did you get the JC tune?

Yes, I have the CARB tune by Jackson Racing.

I'd go Edelbrock or Harrop. (I went with Edelbrock myself)

Design wise there are a few things.

See how much hardware is up high? The turbo? The A2W intercooler? That raises your COG. On many other kits, the turbo sits significantly lower, (That said, this kit does keep the bulk of that weight further back by the battery instead of letting it hang over the nose.)

Retaining stock header? HUGE performance hit. The factory cat is very restrictive, and putting it before a turbocharger is a HUGE no-no. As the cat breaks up over time and heat, it will send bits of worn out cat into the turbo to be munched up. This is awful on the hot side.

The stage 2 kit seems to have a decent intercooler solution, the stage 1 kit's intercooler is atrocious.

These are reasons enough for me to entirely write it off compared to other kits.

I have had a JRSC on my auto for roughly 30k miles (quit counting). Paired with E85, OFH, and a couple other things it's a blast. Taking a step back and not digging into the most power per dollar, or the cheapest kit, heres what I see.


I notice you have a brand new car, plans to add more power, and the state requires emission testing.

Due to the low year and miles, with the Edelbrock warranty it's hard to beat. A company willing to warranty powertrain that they didn't design or manufacture is big. How many claims and whats the process is hard to tell. But just reading the black and white, it's a massive selling point for customers that intend to lease their ride. Keep in mind it can not be modified from its original selling form (carb compliant), and must be installed by a recommended installer to be eligible.

Ask yourself if you are willing to, say every 2 years, take your car to someone to remove the turbo kit, re-tune, pass inspection, re-install and re-tune. While now you may think it's okay, ask the 2 year older self if you'll have the time and money every 2 years to do that. Good thing about CA is if you decided whatever FI you are exempt from bi yearly inspection until it's 5 years old. Bad thing is if you get pulled over and ref'd it's no vaseline zone. Nice thing about the works kit is it gives you a good boost in power, ability to change out the exhaust manifold to a catted/catless, UEL/EL, a bigger turbo, etc

Works really did some good pioneering on this kit and it should be recognized. It may not be the best turbo kit available (price, power, whatever), but they delivered a PNP carb legal kit, that has potential to create more power.

Regardless, replacing any components in the CARB legal form is out of compliance. I would much rather just replace the exhaust manifold and re-tune on carb related FI than save 1-2k by getting a "better" kit and having to remove and reinstall the kit and re-tune. Your reliability will be based on YOUR driving habits, tuner, and random acts that we can't control haha. Keep it under 300whp and you should be right inside the high side of the safe zone. Be mindful though that an engine can bend a rod or spin a bearing stock. So it can happen at any power level.

I'm very very happy with my JRSC. Anytime inspection time comes I just remove the flex fuel kit, re-install factory exhaust manifold, and re-flash my FNG tune that has passed emission before( it's not a carb tune) and away I go for 2 years.

can't you just swap out the cats for catless headers?

also i doubt the COG going to be an issue with a turbo kit?

Yes, at an added cost while negating the primary design feature of this kit, (CARB compliance,) that drives its price point considerably.

I'm nitpicking from an idealist perspective!

No matter what forced induction route you go down, reliability is going to come down to the tune. You could have an awesome ptuning kit running conservative boost and still blow the motor if the tuner is incompetent. There are many proven forced induction kits for this platform that you can research on the forum. Choose which one fits your needs the best.

The real question is what tune are you going to be using or where you are getting your tune from. The CARB JRSC Tune is known to be quite good, but if you're looking for custom tuning, that's where I think you should invest most of your research. This car has both direct injection and port injection which causes a lot of headaches for tuners if they haven't tuned these cars before so it is important that you find a competent one.

Are you looking to get it dyno tuned? If so, you'll need to find a tuner in your area with a good reputation and one that has tuned these cars before. If there aren't any in your area, plenty of people have had good experiences with Delicious Tuning and there flash 'n go service. You basically tell them your mods and they'll give you a base map. From there you'll log data and go back and forth with them as they revise your tune to fit your car.

Good luck with whatever you choose to do, just remember research, research, and research when it comes to expensive car parts. The last thing you want to do is spend a whole bunch of money and realize that it was a waste. Happy driving!