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      11-07-2011, 05:40 PM   #1
f32458
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pros and cons on straight pipes?

I had Akra EVO before the iPE F1. Both stinks but iPE is much much louder.
Why do you run full system and why not?
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      11-07-2011, 05:42 PM   #2
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Full system for the most power gains, pretty simple.
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      11-07-2011, 05:49 PM   #3
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Pros: Power

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Solution: Tune Or Akra Delete - R
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      11-07-2011, 05:53 PM   #4
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Quote:
Originally Posted by THE TECH View Post
Full system for the most power gains, pretty simple.
That is what I thought. When I had the Akra EVO for two weeks. I felt the gain is much more noticeable than my current iPE F1. I am embarrassed to WOT since it is way too loud in the city driving. I heard from some people saying with the valve closed, I gain more torque? My valve opens at 3800rpm in auto mode. Which is insanely loud after I pass 3800rpm so I let go of the gas pedal immediately. Again, it has been raining crazy lately. Haven't yet to drive it hard with the valve open/close.
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      11-07-2011, 09:50 PM   #5
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Pros, power. Cons, smell and CEL w/ no tune
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      11-08-2011, 01:04 AM   #6
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can you smell the exhaust at a stop with the windows down?
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      11-08-2011, 01:50 AM   #7
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Quote:
Originally Posted by f32458 View Post
I had Akra EVO before the iPE F1. Both stinks but iPE is much much louder.
Why do you run full system and why not?
Can you explain why the Akra Evo stinks? I'm thinking about getting one very soon.
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      11-08-2011, 12:47 PM   #8
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Quote:
Originally Posted by ///M-Turismo View Post
Can you explain why the Akra Evo stinks? I'm thinking about getting one very soon.
It uses hi-flo catalytic converters instead of regular cats. That's the thing that makes the smell of the exhaust go away, but having regular cats reduces the flow of the gases. Something along to that nature.
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      11-08-2011, 04:02 PM   #9
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Quote:
Originally Posted by bchang2001 View Post
can you smell the exhaust at a stop with the windows down?
usually No..but if stopped too long and wind blows up your ass, to the front, then yea, u can smell it...i like the smell tho...cant be good for u, im sure
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      11-08-2011, 04:12 PM   #10
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The only time I regret not having cats (on my E46) is when its cold out and I want to warm up the car in the garage for a quick moment (with the garage door open of course)...the smell gets quite strong.
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      11-08-2011, 08:38 PM   #11
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Pros: loud

Cons: loud
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      11-08-2011, 09:13 PM   #12
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Originally Posted by BMWJ View Post
Pros: loud

Cons: loud
Lmao
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      11-08-2011, 09:58 PM   #13
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Quote:
Originally Posted by f32458 View Post
That is what I thought. When I had the Akra EVO for two weeks. I felt the gain is much more noticeable than my current iPE F1. I am embarrassed to WOT since it is way too loud in the city driving. I heard from some people saying with the valve closed, I gain more torque? My valve opens at 3800rpm in auto mode. Which is insanely loud after I pass 3800rpm so I let go of the gas pedal immediately. Again, it has been raining crazy lately. Haven't yet to drive it hard with the valve open/close.
why don't you keep the valves closed in the city and then when you want to rip it on the highway or side streets, open it? That's what I'm going to do when I install mine.
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      11-09-2011, 01:59 AM   #14
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Quote:
Originally Posted by MR///M3 View Post
why don't you keep the valves closed in the city and then when you want to rip it on the highway or side streets, open it? That's what I'm going to do when I install mine.
This is what I do. Sometimes I just wanna WOT. Great, your M3 will sounds the most aggressive in your area soon.
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