FA20CLUB Over Pipe Front Pipe & Cold Air Intake Now Ready

[sierra]

Originally Posted by FA20Club.com

over pipe on its own is only complimenting the full exhaust upgrade since it doesnt affect the secondary cat you wont have much negative affects. the over pipe is meant to compliment a car equipped with front pipe and exhaust. at that point the only restriction will be the header itself.

So does it only run extremely rich with the overpipe and front pipe when the front pipe has no cat?
Is there a real danger of engine damage from swapping exhaust components?

[FA20Club.com]

not going to have any engine damage just wont be maximized. mainly affects are from the decatted front pipe

[sierra]

Originally Posted by FA20Club.com

not going to have any engine damage just wont be maximized. mainly affects are from the decatted front pipe

Thanks for that. I'm opposed to deleting cats because they do a great job, so it wont be a problem for me.

[mad_sb]

Originally Posted by soros151

If anything I would expect a rich condition with no cat and the stock air box. No cat = a bit of less friction = faster air velocity = gasses exit faster the through the exhaust side = intake air comes in faster = MAF registers more air going in = ECU throws more fuel to compensate for the additional air coming in. I understand the point of having to tune the car for maximum hp extraction, but unless taking the cat out creates a CEL, then I would wait until everything else is maxed out.

Sent from my HTC VLE_U using Tapatalk 2

Yeah, I was just going to say... IF going to a different over / front pipe or just front pipe or just catback whatever, result in a true increase in air flow the load the ecu see's will go up and as a result more fuel is added. This can be corrected with a tune.