PERRIN Parts Proving.... Full Exhaust System w/Header

[Danzzt231]

That is an awesome gain, and very well documented parts by parts.

Oil cooler is definitely on my wish list, keep engine running stronger for longer.

[JoeBoxer]

Glad i have been patient and haven't ordered any performance parts yet, first is obviously not always best!

[EvoXDD]

Originally Posted by JoeBoxer

Glad i have been patient and haven't ordered any performance parts yet, first is obviously not always best!

This is why I am piecing together an intake instead of paying $400 for a set of subpar intakes that just got released faster. Two words...R&D. R&D=win, rushing ='s fail

[PERRIN_Jeff]

Tonight we are having an event at our shop starting at 5pm. Anyone that is local can come by, I would be more than happy to fire up the car and drive it around for you!

Originally Posted by UncleFester

Thanks for the great work/posts Perrin. Looking forward to seeing some more.

I too am interested in hearing an ETA on availability.

Also Jeff , based on your explanation of ECU logic. How happy would the ECU be with 100 octane or E85?

What if I told you today I could ship you a catback?

The ECU would for sure be happy with 100 octane, but E85 not sure. The ECU can adjust for fuel trims no problem, but only to a point. I would have to test that out. But for sure with a custom tune, E85 could be really really awesome!

Originally Posted by lucchesi423

I'm surprised no one has said this yet but SOUND CLIPS AND DYNO VIDEO PLEASE!....you know...once you're finished with that amazing header. Great work and thanks for the detailed mechanics behind it Perrin.

If you saw our other clips you would get the idea of the actual sound. Teh added volume is really hard to pick up in a video. We will make time pretty shortly to do some videos. There is just too much happening around here at the moment!

Originally Posted by brillo

Can the pre cat in the header be removed without a CEL?

Sure can with an ECU tune. During my testing, it took a week of driving around before the check engine light popped on. I thought that was interesting.

Originally Posted by dwx

Question: Do you feel like a straight pipe off of your midpipe would make more, less, or the same power? I'm just curious if having a little bit of backpressure helps overall or if it was even more free-flowing would it help even more?

Also while I know it could technically be called a "bolt-on" I have a hard time considering doing cams on a DOHC Subaru a bolt-on mod.

You mean like a muffler delete kind of setup. This is something we have ready to test, but what we are more interested in seeing is what a 3" system will do for HP. There is that theory that NA engines need back presssure, but this is really only true from the header to the collector. Other than that, every test i have seen shows bigger is better. I drove around on our 3" system for a week and noticed no change to low end power. The only downfall to a 3" system or a system with a straight pipe at the back in place of a muffler is LOUDNESS!

Originally Posted by dabocx

Whats the ETA on when you all can do a full I/H/E and a tune? Would love to see what this car can do with full bolt ons and a tune.

Thanks for the hard work and looking forward to cams!

And not to promote other companies....but ITBs will be hitting this car sooner than later

ETA on the intake is about 8 weeks, Catback is 0 weeks, Frontpipe is about 5 weeks, header is TBA.

Originally Posted by EvoXDD

This is why I am piecing together an intake instead of paying $400 for a set of subpar intakes that just got released faster. Two words...R&D. R&D=win, rushing ='s fail

Just be aware that intakes are not all the same and piecing it together could cause some issues with running lean!

[dwx]

Yeah I am a bit worried how loud a 3" system would be with a straight pipe, even with the stock header/cat pipe.

Is your catback without the resonator still around 26lbs? Are you still planning to offer it without a resonator?

[PERRIN_Jeff]

Its available with and with out the resonator. The without resonator comes it at 26lbs still. We didn't do the thinner 18G tubing. Its not worth sacrificing the durability.

[Radulov-47]

Looks good

[lucchesi423]

i have watched the other clips, and thats completely understandable about alot happening. I was just wanting to see what the added header might have done to make the exhaust note more aggressive. Obviously you guys are still in the testing phase, im just excited for the end result.

[PERRIN_Jeff]

For sure the sound is more agressive and its awesome sounding. I will see what we can do to speed that up!

[mike2100]

So is cat number 2 further enough away from the engine than cat number 1 that changing cat number 2 to a metallic core cat will not be an issue from a heat standpoint?

[MiguelAE86]

Originally Posted by mike2100

So is cat number 2 further enough away from the engine than cat number 1 that changing cat number 2 to a metallic core cat will not be an issue from a heat standpoint?

I think you accidentally a word

[xjohnx]

Originally Posted by PERRIN_Jeff

What if I told you today I could ship you a catback?

I'd say how much?

[cyde01]

Originally Posted by 7thgear

Not to be the asshole in the group

But really, the only part on the horizon that will be somewhat accessible for the average tuner will be cams.

Not tons, just 1 part.


Valve Springs are hardly a performance mod, they will be required yes, but that's like saying shoelaces make your shoes more comfortable.

The rest requires the entire engine taken apart and ridiculous amounts of tuning. Seriously how much are you planning on extracting from a 12.5:1 engine through piston work.. what are you going to do, raise the compression? The car already runs on 93.

So let's be realistic. Outside of a tune and the freak chance someone designs a better flowing intake manifold or an ITB setup, we're pretty much limited to an 18-20 WHP gain from Bolton parts.

i don't share your pessimism. yes, opening up the block and changing internals is not accessible to the average tuner. ITBs probably aren't either, due to large amount of labor involved in installing them and difficulty in tuning ITBs. also, DBW is a significant hindrance to the development of an ITB kit.

so lets look at just the bolt ons. they've already made 12-15whp just with HE and no tune. with IHE and tune, i don't think it's overly optimistic to expect 20-25whp. cams, cam gears, and valve springs are accessible enough to be called bolt ons, and they allow you to raise the redline higher, and make power at those higher rpms. sure cam gears and valve springs don't make any power by themselves, they are just necessary supporting mods for the cams. but finding the sweet spot cam duration will make tons of power, especially with the aforementioned supporting mods. i think F20C power (190-200whp)with a 8500rpm redline is doable with IHE, cams, valve springs, mild head porting, and a tune, and would be a fantastic upgrade. that is the standard route of going about n/a tuning anyway.

Originally Posted by ahausheer

Wanting more from an NA engine is not reasonable. The tune could increase hp another 10-20 hp. Lets say we see a total of 30 hp at the wheels (bolt-ons and tune) for a total of 188 at the wheels. That's around 94 hp/liter to the WHEELS on an NA engine that doesn't rev crazy high.

yeah well you could always just make it rev higher. i'm pretty confident that the fa20 powerplant is competent enough to make power at higher rpms with good tuners adding the right mods.

[7thgear]

just for the record, my pessimism was not with the GAINS or the COSTS, it's the amount of "go fast parts" available for us to choose from

i am a 100% hater of marketing hype and adjective overuse.

1 metric ton = 2200 lb, singular, so tons would mean at least 2..

anyway

[raz0rbladez909]

Originally Posted by PERRIN_Jeff

You mean like a muffler delete kind of setup. This is something we have ready to test, but what we are more interested in seeing is what a 3" system will do for HP. There is that theory that NA engines need back presssure, but this is really only true from the header to the collector. Other than that, every test i have seen shows bigger is better. I drove around on our 3" system for a week and noticed no change to low end power. The only downfall to a 3" system or a system with a straight pipe at the back in place of a muffler is LOUDNESS!

I as well am highly interested in a 3" system!! Every dyno chart I saw on the s2000 forums going from 60, 65, or 70mm up to 3inches showed gains throughout the powerband over others. I'm sure with a good quality muffler setup you could still keep the decibels under control.

[JACK 8URT0N]

In for 3" as well. Thanks Jeff.

[PERRIN_Jeff]

Originally Posted by mike2100

So is cat number 2 further enough away from the engine than cat number 1 that changing cat number 2 to a metallic core cat will not be an issue from a heat standpoint?

So far Cat number 2 has held up. My guess is, its plenty far enough away that it will NEVER be a problem. Currently on my car, I have the header, single high flow cat front pipe, and 2.5" resonated system. Its sweet.

Originally Posted by 7thgear

just for the record, my pessimism was not with the GAINS or the COSTS, it's the amount of "go fast parts" available for us to choose from

i am a 100% hater of marketing hype and adjective overuse.

1 metric ton = 2200 lb, singular, so tons would mean at least 2..

anyway

Fair enough. I like the word "tons", what can I say. Hopefully you noticed that I didn't use tons for the HP gains. Its not like we claim 20WHP/tons from the header.....

Originally Posted by raz0rbladez909

I as well am highly interested in a 3" system!! Every dyno chart I saw on the s2000 forums going from 60, 65, or 70mm up to 3inches showed gains throughout the powerband over others. I'm sure with a good quality muffler setup you could still keep the decibels under control.

In time, in time.......

Originally Posted by JACK 8URT0N

In for 3" as well. Thanks Jeff.

Jealous of your forum name. I am sure there are only a couple people here who grew up loving Jack Burton.....
Now everyone is going to google it to find how how cool he really was.

[xjohnx]

Originally Posted by PERRIN_Jeff

What if I told you today I could ship you a catback?

tease.

[zoomzoomers]

So an addition of an oil cooler aids in fighting power loss due to heat and helps the longevity of your motor? I'm in where do I sign?

[mike2100]

Originally Posted by PERRIN_Jeff

So far Cat number 2 has held up. My guess is, its plenty far enough away that it will NEVER be a problem. Currently on my car, I have the header, single high flow cat front pipe, and 2.5" resonated system. Its sweet.

Thanks, that helps confirm my ideal setup. Catless header and a high flow secondary cat to combat the stink.

[ngabdala]

What parts would I be looking to buy in order to keep my BRZ's ability to pass emissions in the state of MA?

Also, is the exhaust quiet while cruising at low rpm on the highway? I'm getting to the point where I want my new ride to be quiet at cruising speeds.

Originally Posted by PERRIN_Jeff

So far Cat number 2 has held up. My guess is, its plenty far enough away that it will NEVER be a problem. Currently on my car, I have the header, single high flow cat front pipe, and 2.5" resonated system. Its sweet.


Fair enough. I like the word "tons", what can I say. Hopefully you noticed that I didn't use tons for the HP gains. Its not like we claim 20WHP/tons from the header.....


In time, in time.......


Jealous of your forum name. I am sure there are only a couple people here who grew up loving Jack Burton.....
Now everyone is going to google it to find how how cool he really was.

[jehu]

what about a tune to suit 98RON for us drivers over in Aus?
Thats what we have been told to run our FA-20's on.
our fuel groups/counts/levels are:
91- standard ULP
95- Super
98- Premium
100- Race (very rare)
E10
I don't think we have E85.

thanks, and I love your work PERRIN. I will definitely be buying a lot of your gear for my GT86.