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post #4 of (permalink) Old 16-08-2016, 07:56 Thread Starter
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Join Date: Dec 2012
Car: MG TF
Posts: 55
Thanks! This is quite interesting.

Last Sunday I fitted the modded Toyosports and found that after the modifications (less backpressure and more free-flowing design), the resonance at 3k almost disappeared, making it more comfortable to drive at cruising speeds. So I might keep it in the end, but still unsure about it. It is VERY addictive now. VERY.

My main concern is how the sound of a standard backbox can become by altering the internal structure, don't want to ruin a good (and rare!) valved-backbox if it's going to sound like a fart

I might consider sourcing a more common 115 exhaust and, although with smaller pipes, see how it turns out before altering the 1.8 one.
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