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Installing Panel filter (K&N,Perrin, Cosworth) Effect Cobb Stage 1


izzy

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i have the avo drop in, and christian @ cobb told me this: 'When I have tested any drop-in on the stock LGT intake, the car leans out by~.5 AFR. I would be cautious on running the car with a drop-in filter without a tune.'

 

based on what he msgd me, im thinking of taking it out until i get a protune or the like. ive ran the avo filter with both stg1 and stg2 cobb ots maps.

 

so to answer your question, it is probably best even w/ a drop in filter (stock intake).

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not for an accessport. if you were OpenSource, yeah there's probably a place you could get one for free. but for the most part any AP tunes cost $$$$....I know Tuning Alliance does e-tunes for $75 so thats not too expensive, relatively.
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Did having it effect the car in any way?

 

i have the avo drop in, and christian @ cobb told me this: 'When I have tested any drop-in on the stock LGT intake, the car leans out by~.5 AFR. I would be cautious on running the car with a drop-in filter without a tune.'

 

based on what he msgd me, im thinking of taking it out until i get a protune or the like. ive ran the avo filter with both stg1 and stg2 cobb ots maps.

 

so to answer your question, it is probably best even w/ a drop in filter (stock intake).

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Did having it effect the car in any way?

 

i cant tell as i havent logged, but im eventually going to get a tune.

if i were to replace it w/ the oem paper, id miss the whoosh sound.

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i cant tell as i havent logged, but im eventually going to get a tune.

if i were to replace it w/ the oem paper, id miss the whoosh sound.

 

I ran an AVO panel filter while cobb Stg. 1 for about a year. Zero problems. Not to say there couldn't be some lurking in there though. I recently switched back to stock paper filter because my AVO's seal separated and I felt it's time was through. I miss the extra whooosh a bit, but only when I'm listening for it. :lol: Still considering buying another AVO.

 

The Stg. 1 map notes from Cobb do say:

"Additional modifications such as an underdrive pulley or panel filter are still within the acceptable parameters of this calibration."

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I've seen pretty lean condition on the AVO Panel on a stage 2.

Probably running very close to the limit.

I saw some AFR close to 12.5-13.0 so I think it's your call.

Car will probably run stronger since it's a little leaner, but I take safety more than HP for sure. :)

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Cool! I guess I will be installing it!

 

I ran an AVO panel filter while cobb Stg. 1 for about a year. Zero problems. Not to say there couldn't be some lurking in there though. I recently switched back to stock paper filter because my AVO's seal separated and I felt it's time was through. I miss the extra whooosh a bit, but only when I'm listening for it. :lol: Still considering buying another AVO.

 

The Stg. 1 map notes from Cobb do say:

"Additional modifications such as an underdrive pulley or panel filter are still within the acceptable parameters of this calibration."

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I've seen pretty lean condition on the AVO Panel on a stage 2.

Probably running very close to the limit.

I saw some AFR close to 12.5-13.0 so I think it's your call.

Car will probably run stronger since it's a little leaner, but I take safety more than HP for sure. :)

 

whats a safe afr range? according to christian @ cobb, the afr changes by ~0.5. that seems like a significant amount, but i dont tinker w/ those parameters, so im not sure.

 

anyways, im all about safety too, which is why im running the 91 map on 93 gas.

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not for an accessport. if you were OpenSource, yeah there's probably a place you could get one for free. but for the most part any AP tunes cost $$$$....I know Tuning Alliance does e-tunes for $75 so thats not too expensive, relatively.

 

 

I just wanted to give T.A some good rep. He "made" me one and i have to say, its much better then the cobb stage 1. Thanks again T.A

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