Hi Blair, will your car be running on gas or petrol? as this can help with the type of exhaust system (side pipes). I didn't buy mine, I fabricated the full exhaust system but I can give you the sizes of my pipes, your 5.2L engine/whipple charger setup would determine your pipe sizes to use. My engine is a windsor EFI 5L
I like BIG pipes too! So I twin-skinned my quad pipes to make them look fatter.
My system is consisting of 1"5/8 equal length primaries +/-5mm total length to collector, twin skinned 2" quad pipes with metal finished seamless joints (many pain staking hours involved here), 4-into-1 2"1/2 collectors, flanged joints for the catalectic converters (cats 4"1/4 Dia) & mufflers (18"x3"1/2) flowing into 2 custom side pipes, and a 4"1/2 OD chrome stacks to slide over the mufflers & cats.
It's a hell of alot cheaper to build them your self, if you want some thing differant
Simmo...