MartinT

Yuasa YBX3014 60Ah is what I bought to replace the feeble Panasonic in my 2017 BRZ.

Glad you're happy with this. I was so impressed with mine that I've kept it ready to go onto my GR86! Worth spending for a well designed exhaust

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Thanks, Paul!
 

Things I can hear without being overwhelmed by exhaust roar: the sweet spinning of that lovely smooth engine; the intake whoosh/hiss as the supercharger develops boost; the different road surfaces; the slight chirp as I test rear wheel grip on acceleration.

Things I can hear without being overwhelmed by exhaust roar: the sweet spinning of that lovely smooth engine; the intake whoosh/hiss as the supercharger develops boost; the different road surfaces; the slight chirp as I test rear wheel grip on acceleration.

The job's done and I had a wonderful drive home as if in a different car.  It is astonishingly quiet, so much so that I can hear the mechanical sounds of the engine spinning rather than just exhaust roar.  The combination of low noise and swift acceleration gives the impression that the car is even faster.  Perhaps it is, knowing that there is no exhaust restriction at all.  Ian at H&S explained to me that both the centre silencer and the two back boxes are stuffed but feature a straight-through design, so there is probably less impediment to gas flow.  The two Helmholz resonators are empty, as they should be.
External noise at idle is the same as stock but you get a nice subdued tone at revs.
Without knowing whose exhaust came off, he did say the back box is a bad design and the overall workmanship with all the welds (and the cracking) pretty poor.  I decided not to try selling it to a poor unsuspecting buyer so I had Ian scrap it.

My H&S exhaust is now ready and will be installed on Friday 11 November.  I'm looking forward to the drive home, but possibly not the 2h drive there in the morning!

My H&S exhaust is now ready and will be installed on Friday 11 November.  I'm looking forward to the drive home, but possibly not the 2h drive there in the morning!

For those who are interested, the Goodyear F1 Asymmetric 6 are tremendously grippy and quieter than PS4 with less road roar.  One step towards a quieter car.  Next will be the Hayward & Scott exhaust.

Hopefully the idiots on the M25 don’t spoil the drive

You’re going to enjoy it! Just make sure you throw it round some corners to be certain the centre silencer doesn’t hit the transmission tunnel as it’s a very tight fit. 

I had a similar thought as you and had asked Matt@Cosworth and his feedback was as under.
the low temp thermostat in the car, this is worth about 3-4 bhp on its own plus you can then get another 1.5° of spark in there as the heads are colder which results in another 3 bhp
 
Am sure Cosworth did their R&D thoroughly on it and have spent hours on testing the engine on an engine dyno which no one else has done. That is why came up with a LT Thermostat in their package. If it were just a transient gain, they wouldn't recommend it.

I've ordered a Mishimoto 76°C thermostat for Abbey to fit on my next service.

White BRZ - join the (rare) club!

Deeper bass note will be lush!
 
Agree about facebook.  Lots of repeat questions and no continuity.  What is wrong with forums?  You get to know people.

Thanks, @Luke I will indeed have H&S install it, I shall take a day off and let them do the fitting and snagging.
Ian has been most helpful so far!

You’ll love this exhaust, I’ve got it and the sound is great. No drone at all just a nice sound. Make sure that you get h and s to fit it as it’s likely to need tweaking with a blow torch to fit correctly as there are a few joins. Ian is great at h and s. 

I still dislike Facebook's haphazard nature and threads that get quickly lost, so I'll continue blogging here.
I finally got truly fed up with the temperamental nature of my TD exhaust, the noise that is still loud, and gets a lot louder when hot, and its poor build quality (I've twice had to have the end welds on the super-resonator re-made).  Not to mention the front dampers that were destroyed because they used a mole wrench on the piston struts.  That, together with all the trouble I had with my TD manifold burning the top hose, means I want rid of the last bit of TD from my car.
I've decided, based on videos, owner reports and talking to Hayward & Scott, on a new exhaust.  I'm having a bespoke one made using their large silencer, dual Helmholz resonators and tips.  I specified 60mm stainless steel as they said it's good for up to 350bhp and I'm never going to uprate it above the 300bhp it's pulling now.  I want it quiet!
They report 88dB at 5000 rpm with a stock engine, so add 2dB for the supercharger.  That will comfortably beat the 100dB or so that mine creates using my SPL meter at 1m distance.  More importantly, it will be much quieter around town, there should be no drone and it will have a deeper bass note.
Installation is expected to be in about 4 weeks' time.

I had a little excitement on the M3 going to work this morning.  TPMS light came on so I slowed down and came off at the services.  Rear n/s tyre was almost flat so I put air into it and went on my way.  The TPMS light remained off but the ride quality got worse and worse until it felt like I had a square wheel.  Decided to come off and return home, nursing the car back to ProTyre in Micheldever close to home.
I told them what had happened and said I was about to order a new set of tyres anyway, so I ordered Goodyear F1 Asymmetric 6 as they seem to be rated better than PS4 now.  I also asked them to look at that tyre as I was interested in what had happened.  They were amazed I hadn't had a high speed blowout as there were two huge bulges on the inner wall.  I had acquired more damage in having run flat than I had realised.
Close shave!

I still dislike Facebook's haphazard nature and threads that get quickly lost, so I'll continue blogging here.
I finally got truly fed up with the temperamental nature of my TD exhaust, the noise that is still loud, and gets a lot louder when hot, and its poor build quality (I've twice had to have the end welds on the super-resonator re-made).  Not to mention the front dampers that were destroyed because they used a mole wrench on the piston struts.  That, together with all the trouble I had with my TD manifold burning the top hose, means I want rid of the last bit of TD from my car.
I've decided, based on videos, owner reports and talking to Hayward & Scott, on a new exhaust.  I'm having a bespoke one made using their large silencer, dual Helmholz resonators and tips.  I specified 60mm stainless steel as they said it's good for up to 350bhp and I'm never going to uprate it above the 300bhp it's pulling now.  I want it quiet!
They report 88dB at 5000 rpm with a stock engine, so add 2dB for the supercharger.  That will comfortably beat the 100dB or so that mine creates using my SPL meter at 1m distance.  More importantly, it will be much quieter around town, there should be no drone and it will have a deeper bass note.
Installation is expected to be in about 4 weeks' time.

I still dislike Facebook's haphazard nature and threads that get quickly lost, so I'll continue blogging here.
I finally got truly fed up with the temperamental nature of my TD exhaust, the noise that is still loud, and gets a lot louder when hot, and its poor build quality (I've twice had to have the end welds on the super-resonator re-made).  Not to mention the front dampers that were destroyed because they used a mole wrench on the piston struts.  That, together with all the trouble I had with my TD manifold burning the top hose, means I want rid of the last bit of TD from my car.
I've decided, based on videos, owner reports and talking to Hayward & Scott, on a new exhaust.  I'm having a bespoke one made using their large silencer, dual Helmholz resonators and tips.  I specified 60mm stainless steel as they said it's good for up to 350bhp and I'm never going to uprate it above the 300bhp it's pulling now.  I want it quiet!
They report 88dB at 5000 rpm with a stock engine, so add 2dB for the supercharger.  That will comfortably beat the 100dB or so that mine creates using my SPL meter at 1m distance.  More importantly, it will be much quieter around town, there should be no drone and it will have a deeper bass note.
Installation is expected to be in about 4 weeks' time.

I still dislike Facebook's haphazard nature and threads that get quickly lost, so I'll continue blogging here.
I finally got truly fed up with the temperamental nature of my TD exhaust, the noise that is still loud, and gets a lot louder when hot, and its poor build quality (I've twice had to have the end welds on the super-resonator re-made).  Not to mention the front dampers that were destroyed because they used a mole wrench on the piston struts.  That, together with all the trouble I had with my TD manifold burning the top hose, means I want rid of the last bit of TD from my car.
I've decided, based on videos, owner reports and talking to Hayward & Scott, on a new exhaust.  I'm having a bespoke one made using their large silencer, dual Helmholz resonators and tips.  I specified 60mm stainless steel as they said it's good for up to 350bhp and I'm never going to uprate it above the 300bhp it's pulling now.  I want it quiet!
They report 88dB at 5000 rpm with a stock engine, so add 2dB for the supercharger.  That will comfortably beat the 100dB or so that mine creates using my SPL meter at 1m distance.  More importantly, it will be much quieter around town, there should be no drone and it will have a deeper bass note.
Installation is expected to be in about 4 weeks' time.

Oops again, silly me it was actually the 80k service, completed today.
Also new Stoptech rear discs and pads to match the AP 330 front discs and pads.

Welcome!
Everyone knows the BRZ is the cooler car, it's only us Subaru owners that will say it out loud.

Today I decided to try to improve my bonnet, which is full of stone chip repairs with ill-matching paint and also suffered from an accident with a paint spillage.
I clay barred a long curved mark on the bonnet with the recommended clay and clay lube. Then I used the orange buffer with my orbital machine and Meguire's paint compound, being careful to apply it exactly as in the video.  I then used isopropyl alcohol to clean and check the area. I repeated this, then cleaned and polished the area. No sign of the mark, just a nice and evenly shiny area of the bonnet.

This may seem like amateur hour to some of you but for me it was a big deal.  It's given me the confidence to do some more areas tomorrow.