tuning required CAI and exhaust

[ffrcobra_65]

FWIW, I have a 3'' cat back and CAI, no tune. So far so good. No check engine light or driveability issues. Just great sound and improved performance. Maggie 2300 will get installed next week (I hope) and it'll have to get a tune then.

[HtownSS]

Originally Posted by JANNETTYRACING

Headers and exhaust will Not need tuning.

The Cold Air intake you choose may or may not need tuning, Most Do Not.

You can use the Cold air intake results as a guide, Lower Fuel Trims Mean either little or No tuning required.

Knock will learn out so Nothing to be worried about there.

These computers Constantly are adjusting to the conditions and they are tuned for max Power.

Once you get in to a Blower, Cam, Heads, Different Mass Air Flow Meter, Larger injectors, then Tuning Is Absolutely necessary.

Ted.

Thank you for your honesty and expertise, as for as preventing the SES light from coming on when running long tube headers, I modified two spark plug fouler extenders installed them into the rear O2 sensors on a buddy of mine 08 Mustang with Kooks long tubes, and he has yet to see any SES light, would I get the same results on the Camaro LS3.

Thanks.

[mlee]

There's a reason exhaust and CAI won't void your drivetrain warranty
and a reason that a tune will.

I've had my car in for service with CAI and Catback and they didn't even mention it.

[NVMY68SS]

Originally Posted by GQ4Life

well if mods add good amount of HP then there is chance car can go lean and that bad for engine.. but doubt it with just exhaust and CAI..

someone with CAI and exhaust that got car dynoed needs to chime in with their untune afr..

I've got the Roto-Fab CAI, Doug Thorley shorties and the Flowmaster 3" cat back system and NO tune. I just checked my AF on my dyno sheet and it ran between 12 and 13 on both runs consistently.

[axis]

Originally Posted by NVMY68SS

I've got the Roto-Fab CAI, Doug Thorley shorties and the Flowmaster 3" cat back system and NO tune. I just checked my AF on my dyno sheet and it ran between 12 and 13 on both runs consistently.

But he didn't say which CAI he's getting. There are CAI's that NEED a tune to work properly. Adding a exhaust upgrade to that will only make it worse.

[NVMY68SS]

Originally Posted by axis

But he didn't say which CAI he's getting. There are CAI's that NEED a tune to work properly. Adding a exhaust upgrade to that will only make it worse.

I'm just offering my AF #s without a tune with my current setup for information...........

[JANNETTYRACING]

Originally Posted by HtownSS

Thank you for your honesty and expertise, as for as preventing the SES light from coming on when running long tube headers, I modified two spark plug fouler extenders installed them into the rear O2 sensors on a buddy of mine 08 Mustang with Kooks long tubes, and he has yet to see any SES light, would I get the same results on the Camaro LS3.

Thanks.

The spark plug anti foulers have been known to work in most cases but not all.

Ted.

[Steve@Vectormotorsports]

Originally Posted by ************

You won't need a tune with an exhaust and cold air intake. If you want every bit of power then get a tune afterwards.

Agreed. Typically we are seeing a 15-20 RWHP gain from tuning. And remember these are peak gains, there are gains across the entire powerband.