View Poll Results: Which true dual exhaust system would you pick for G35 Sedan?
Stillen
74
61.67%
Borla
46
38.33%
Voters: 120. You may not vote on this poll
Borla or Stillen True dual Exhaust?/
#61
11-06-2006, 03:14 PM
Originally Posted by machavez702
The Stillen muffler is straight through and the resonators are bigger so the limit of flow for the Stillen is the sectional area of the 2 pipes. In general, you just use the section of the diameter to compare pipe flow for exhaust. I know the stock muffler isn't straight through but for the purpose of flow comparison, just use the area of the pipe's section.
In that case I would estimate the Stillen to be a little higher. Maybe 55-60%. Does anyone know the pipe size on the Stillen? I would guess 2 1/2" I believe the Borla is 2 1/4".
#62
11-06-2006, 04:59 PM
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^^^+1, Stillen pipes is 2 1/2" all the way.
Has anyone look inside the Borla first muffler/resonnator? Is it a straight through with perforation, or does it has a crossover (H-pipe)? Crossover help equalize the exhaust pressure, improving flow. Kinda like scavanging effect.
Off topic, but on the Z32 w/o crossover, it sound like two 3 cylinder engine. Kinda like first gen Viper w/side pipe, two 5 cylinder. Both sound like @ss. This doesn't apply to the Borla as much because the two banks share the same muffler.
Has anyone look inside the Borla first muffler/resonnator? Is it a straight through with perforation, or does it has a crossover (H-pipe)? Crossover help equalize the exhaust pressure, improving flow. Kinda like scavanging effect.
Off topic, but on the Z32 w/o crossover, it sound like two 3 cylinder engine. Kinda like first gen Viper w/side pipe, two 5 cylinder. Both sound like @ss. This doesn't apply to the Borla as much because the two banks share the same muffler.
#63
11-06-2006, 05:36 PM
#65
11-07-2006, 09:50 AM
#67
11-07-2006, 05:12 PM
#68
11-10-2006, 03:42 PM
#69
11-10-2006, 04:00 PM
Originally Posted by Margaret
Perhaps you already have an answer. The Stillen true dual exhaust weighs 13 lbs. It will increase horse power 21-23 and torque 21-23 foot pounds. The Stillen exhaust that I have for sale is stainless steel, a true dual with an X pipe to balance pressure.
#70
11-10-2006, 04:10 PM
Wow 13lbs and 21-23 hp and ftlb gains!
So that's why you are selling yours?
https://g35driver.com/forums/showthr...01#post1498301
So that's why you are selling yours?
https://g35driver.com/forums/showthr...01#post1498301
Originally Posted by Margaret
Perhaps you already have an answer. The Stillen true dual exhaust weighs 13 lbs. It will increase horse power 21-23 and torque 21-23 foot pounds. The Stillen exhaust that I have for sale is stainless steel, a true dual with an X pipe to balance pressure.
#71
11-10-2006, 04:13 PM
#75
11-11-2006, 07:52 PM
