Help on install !

[WhatUpWhatUp]

I have 02 z28 and i just bought some LT ARH with catted y pipe. Everything else is stock and i magnaflow exhaust. Will i need new spark plugs and other stuff when installing ? The ARH and y pipe are 3'' Thanx

[silverWS6]

I have 02 z28 and i just bought some LT ARH with catted y pipe. Everything else is stock and i magnaflow exhaust. Will i need new spark plugs and other stuff when installing ? The ARH and y pipe are 3'' Thanx

Might as well replace em since you'll have everything moved outta the way and you'll be at it already.

[Hi-Po]

It would be silly not to replace the plugs during the swap.

[SMWS6TA]

Get NGK TR55 if you do swap them..