Aero Turbine Muffler on 4G64

[Fenixfire077]

Hey, I have a 2003 GS, I was looking into getting one of those aero turbine exhausts, here's the link i want the 2540i to be exact, but does anyone know about these, or have any comments?

[johnnyBgood]

:BS: They claim the model that you are looking at was used on 600hp NASCAR Monte carlo's. Well, I have seen them build those engines and exhaust systems, and they do not have any mufflers period.

And if they were so great, then OEM's would be using them on their cars. And if a stock exhaust system was that restrictive as they claim, then replacing just the muffler will not create a dramatic improvement. And with turbo cars, such as the pictured STi, those cars require as litle backpressure as possible. You cannot make a generalized statement about NA cars and FI cars, when it comes to exhaust systems. NA cars require backpressure and exhaust velocity to operate efficiently for maximum power. FI cars require that the exhaust be removed as quickly as possible with as little restriction as possible.

The stock exhaust for the 3G NA is quite adequate. The only major restriction is the muffler, and by replacing it with a Magnaflow muffler would be your best bet.

[Fenixfire077]

how does that magnaflow muffler sound? also, where is the best place to purchase one? a little sidetracked but - do you know much about the rpw high flow cat and headers for the car?

[johnnyBgood]

By putting on the muffler and retaining your resonators, the car will sound very deep.

I can offer you the Magnaflow muffler and Magnaflow cat-back. The cat-back is about $380 shipped and is rated by Magnaflow to give you a 10HP and 17TQ increase. The pipe diameter s 2.5" as compared to the stock RS/GS pipe diameter of 2.25".

The muffler is around $110 shipped, but I will have to call my distributor to get a more accurate price quote.