Mufflers

[MIG_45]

Recently I been thinking changing all 3 mufflers but what to choose that can give me better horse power but still run silent?

[marosari00]

I have to think the Infiniti engineers did magic to quiet 03 M45. If you can manage a bit louder sound...here is a suggestion at the link below...a video is included. I installed a similar system, instead of the AR 25, my setup used Magnaflow resonators. I am more than thrilled with my install.

http://www.mandrelbend.com/mandrelbend. ... tentId=165

Manuel

[EniGmA1987]

Doesnt more HP come from less restriction? Less restriction should also mean more loud, so I dont think you can truly do what you are looking for. Better designs can give more and take less for sure, but to get any kind of HP increase that is worthwhile you will have to be louder than your stock exhaust.

[MIG_45]

you know your right EniGmA1987 i wasn't thinking on that part. but i liked the idea of how marosari00 design looks great but i was curious there was a device that regulated the exhaust flow and have you had any dimllema with it???

[CPJ LB]

If you're planning to change up your mufflers, you can go with a 'happy medium' that will provide better flow than a stock set up, yet give you a nice exhaust note without being too loud. In addition, the resonator series will eliminate the 'drone' that is commonly associated with aftermarket exhaust set ups... this company provides many options for mufflers, resonators, x/y pipe connectors....I used them when I had my E class with a custom exhaust (E55 axle backs with Solo Resonators QR)



http://solo-performance.com/solorez-resonators

[svard75]

Sound and exhaust flow don't really relate. Sound can be suppressed using resonators at specific points to absorb the sound waves but allow the exhaust gasses to continue. This is called resonance tuning. If a shop were willing to experiment while building an exhaust it would be possible to have both.

[marosari00]

.. but i was curious there was a device that regulated the exhaust flow and have you had any dimllema with it???

The butterfly valve is something added to control the sound levels. It was removed in my install as all tubing was replaced. The components that actuated the valve are in the trunk and were removed too. No problems at all.

Manuel