Hi Chris - no idea on the varex - but I have our new Ultimate Series exhaust on our my15 sti - and these are $1600
TBE - The quality is as good as you can get - irrelevant of price.
If you want to have a listen let me know and will take you for a blast..pretty pictures and sound clip here
SUBARU STI MY15-17 TURBO BACK EXHAUST ULTIMATE SERIES - $1,599.00 : ULTREX PERFORMANCE - BEST BANG FOR YOUR BUCK IN PERFORMANCE PARTS
cheers
Rob