So I've been scouring the internet for about 6 months trying to figure out the best setup for my G. I have gotten more and more confused and now I'm looking for help.

I want to do a full setup from header all the way back.

​​​​Can someone tell me if I am ordering extraneous parts or if I am making a foolish decision.

ISR Long Tube Headers
https://conceptzperformance.com/isr-performance-hgc-long-tube-headers-vq35de-vq35hr-vq37vhr-nissan-350z-370z-infiniti-g35-is-sshd-vq35_p_32339.php

Megan Racing Y Pipe
https://conceptzperformance.com/megan-racing-stainless-steel-y-pipe-version-2-nissan-350z-infiniti-g35-mr-y-n3z-v2_p_11820.php

ISR Single Exit Exhaust
https://www.outcastgarage.com/products/isr-performance-single-gt-exhaust-nissan-350z

Extension Pipe
https://www.outcastgarage.com/products/3-conversion-extension-pipe-8-long-inifiniti-g35-coupe

Thanks for the help in advance.

 

Looking at the names alone, that is going to be loud as all hell. You will need the extension, as it appears the ISR exhaust is meant for a 350Z. Those parts *should* all fit, but be warned; I had HFC, stock y-pipe and the ISR exhaust and could barely hear myself think. Long-tubes delete the cat, so it is going to be QUITE the loud setup.

Unless this is a weekend car, I'd only recommend the single-exit exhaust setups with stock cats. HFC or test-pipes/long-tubes will make you unable to hear your radio. You'll have maximum power, yes, but at a heavy cost.

For a respectable daily/decent power; HFC/HKS dual-catback is a great combo, even headers should keep it civil. I've noticed these cars drone a TON with 3-inch singles on the highway.