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Andersonn · 03-07-2017, 12:18 PM

Been reading all kinds of exhaust threads over the last couple days and finding all kinds of good info, but wondering if anyone has bolt in cat deletes with the NPP and how it sounds? Anyone tried the old spark plug non fouler trick for the rear 02's?

Thanks!

03-07-2017, 12:18 PM	#1
Andersonn Drives: 2SS 6Spd 50th Anniv Join Date: Feb 2017 Location: Shorewood IL Posts: 3	Who has bolt in cat deletes with NPP? Been reading all kinds of exhaust threads over the last couple days and finding all kinds of good info, but wondering if anyone has bolt in cat deletes with the NPP and how it sounds? Anyone tried the old spark plug non fouler trick for the rear 02's? Thanks!