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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.


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Old 06-05-2019, 03:17 AM   #15
hatsuke
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Image is not popping out, sir.

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Old 06-05-2019, 03:52 AM   #16
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Originally Posted by hatsuke View Post
Image is not popping out, sir.

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Originally Posted by OwlDance View Post
Well if you're concerned about HP you're probably just doing more harm without the tune since OEM tunes are designed for maximum efficiency for OEM equipment (barring a cat/axleback)...

Going full catless is going to make your car extremely loud, louder than it is now. However you've described your car now, changing the overpipe won't do much to change the exhaust note that much either. My two cents, if it sounds bad now, removing the last cat and changing the OP won't make it sound any better.

Sounding like a broken record at this point but your car will run (or is already) like complete trash without a proper if you plan to run on a full catless setup on the OEM tune. And on that note, if you DO get a tune (OFT or Ecutek) you can get pops and bangs while actually making your car run properly. But like the others have mentioned, pops and bangs and crackles aren't good for the engine and exhaust.
So, OFT tune 1st, then front pipe(catless)? Just to be assure, OEM OP wont be damage on the setup, right? Or whatever exhaust fail. Thanks 4 this, gives me a clue on what im doing

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Old 06-05-2019, 05:25 AM   #17
86MLR
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Originally Posted by hatsuke View Post
So, OFT tune 1st, then front pipe(catless)? Just to be assure, OEM OP wont be damage on the setup, right? Or whatever exhaust fail. Thanks 4 this, gives me a clue on what im doing

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Honestly mate, I would do more research, for at least a couple of months.

If not, you are going to waste money and end up with rubbish.

My $1. 02 cents

A quite fast car is better than a loud slow car.

A car doesn't need to be loud to be fast.

I found no power loss from reinstalling the OEM catback.

200hp is a catless header and a tune away (conditions apply)

Not every tuner can actually tune well.

OFT = cheap easy average

Ecutek = not cheap not average (conditions apply: you need a good tuner)

You get what you pay for, but don't waste your money.

You don't need half the parts people tell you you do.

ALWAYS USE SOUND ENGINEERING PRINCIPLES

Fluid dynamics and thermal dynamics are not black magic, using these 2 branches of physics will enable you to understand how a exhaust should be designed and what is really required for your application.

Sadly, marketing trumps physics.

Most importantly, don't listen to me, I'm just some random punter on the interwebs.
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