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RLHMARINES · 04-30-2019, 09:37 PM

I had the use of a 5thGen SS m6 some years ago which had been modified with a cold air intake and a long tube header/off road pipes. This car had a cel but ran flawlessly even on track at an HPDE event I drove it at.

No tune at all but it is not a good thing to do both a intake and headers due to the possibility of a very lean condition which can lead to a burnt piston or worse. Rich is safe but lean is not. The computer may handle one of these mods but may not be able to do both without a tune.

Get your air fuel ratio checked even if you’re not going to get a tune just for piece of mind. Know your number.

04-30-2019, 09:37 PM	#8
RLHMARINES 1st Civ. Div. Drives: Camaroless for now...RIP "Big SexZ" Join Date: Dec 2007 Location: Savannah, Ga Posts: 2,729	I had the use of a 5thGen SS m6 some years ago which had been modified with a cold air intake and a long tube header/off road pipes. This car had a cel but ran flawlessly even on track at an HPDE event I drove it at. No tune at all but it is not a good thing to do both a intake and headers due to the possibility of a very lean condition which can lead to a burnt piston or worse. Rich is safe but lean is not. The computer may handle one of these mods but may not be able to do both without a tune. Get your air fuel ratio checked even if you’re not going to get a tune just for piece of mind. Know your number. __________________ Swift....Silent....Deadly Last edited by RLHMARINES; 05-01-2019 at 01:35 AM.