LEXUS Exhaust System Mods [300/400/430/460/470 + acceleration runs!]

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Lexus GS400 Stock Exhaust System (in order)
2 cats (Bank 1 & Bank 2)
3rd muffler (some people call this resonator #3 or even a cat #3, but it's a MUFFLER on the 400). On the GS430 I believe there's a cat there. Each model varies slightly.
2 resonators (designed to eliminate specific frequencies)
2 final mufflers

MY MODS
eliminated 3rd muffler & both resonators
installed (2) Borla ProXS mufflers (P/N 40346)
exhaust shop's generic angled 3" tips

TOTAL COST
$600. I pieced this together over time at various shops, so the cost was higher, collectively. If you got it all done at once, you could probably get it for $500, depending on where you live. If a shop quotes you $600, I would just spend a little extra and get a quality cat-back system instead. I like the sound of mine, but it still has the stock pipe size and every weld probably impedes flow a little bit.

DRONE
No major drone to speak of at cruise. Under load it's definitely louder, so if you go up a lot of hills or carry a lot of weight, it might be louder. The set up is far from obnoxious and only attracts attention when you want it to.

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