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Showing content with the highest reputation on 09/26/22 in all areas

  1. 1 point
    MartinT

    MartinT's BRZ

    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.
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