from my moderate experience with 2JZs with singles, going from a 3" to 4" dump pipe has a massive effect on the shape of the power curve at the top-end (doesn't fall over, just keeps climbing)
There's a couple more guys in the D1GP we are working with, but nothing is on paper yet so I can't disclose too much, but it should very very cool and relevant
Interesting! So you effectively had no rear muffler... much like the link below?
https://tf-works.com/tf-works-a90-toyota-supra-muffler-delete-axle-back-exhaust-race/
Is it too loud for a street car... would you drive it comfortably on long 60mph trips?
Do you have the PN for the BMW exhaust...
This part (circled red)?
I had it on my C63 and it sounded factory until WOT, then it was a fantastic roar... Was hoping for a similar effect with the A90
The rear lights and wing look completely out of place on that design. the front headlights not so bad.... but that rear is horrible. looks awesome on an A80, but not on an A90
I am not sure - given LHD vs RHD I wouldn't be confident buying a US one.
Probably due to our overzealous noise restrictions. "at least we tried"
I'd love to section both and see the difference...