Anyone have a 3" exhasut on a NA?

[CRE]

Anything's better than the stock baffled resonator and muffler combination. Except for straight 2.5" pipe..... my car is WAY too LOUD! I hate it!

3" isn't bad unless you're using a restrictive type noise reduction system... the exhaust cools and slows before it can exit the system. If you're using a straight through muffler and resonator you really shouldn't loose any bottom end torque. Volume is another issue to consider, though. 3" pipe makes for a nice deep, but very loud, sound on an N/A, running dual resonators might help level it out a bit, but it's still probably going to drone like hell around 2K RPM.

 

[BorHor]

Cool, so now I am mainly worried about the loud sound. Lets just hope it isn't to bad.

 

[ValgeKotkas]

Is the turbo exhaust for N/A good? I mean, don't you have to tune the engine then, so it could work right with a bigger exhaust? I mean the engine isn't used to it, right? ( I'm quite a noob when it comes to engines )

 

[s383mmber1]

Is the turbo exhaust for N/A good? I mean, don't you have to tune the engine then, so it could work right with a bigger exhaust? I mean the engine isn't used to it, right? ( I'm quite a noob when it comes to engines )

No you dont have to tune the engine to run a larger exhaust!

Ive heard that the turbo exhaust systems are rather good for the NA engines, and make them sound great!

 

[canadianbacon]

Had 3inch in GF's car was way too loud. Put 2.5 inch with cat and magnaflow... still too loud. Performs a bit better than stock....
Had 2.5 inch, magna high flow cat, borla muff, sounds nice, performance was better.... still an NA... sold it and bought monster turbo...:biglaugh:

 

[aznwaterboy]

Personal Experience here!! I've got a HKS super drager on my car and it's 3inch back from the cat. I barely noticed the drop in low-end torque now that I really think about it, but the exhaust helped the engine breath a lot better in the higher rpms. I could feel the gain after 3500 RPMs. It would just pick up harder and faster, even though its still N/A. Best thing is that I'm still going to use the same exhaust when I hopefully go 1j.

 

[supramacist]

Imagine if you would have had it done propperly and gone 3' fom the exhaust manifold back. I think your'e cutting the complete set up in half if you don't do the pricey end of it. 3 inch pipes behind the cat are for posers....., not enthusiests.

Other than that just stay 2.5 and add a glass pack and say f uck it. You get gains and a nice tone.

Also with that go msd dist cap and msd plug wires, a fresh tune up and air filter and you may be surprised at the difference that alone makes. Don't fall for the dist cap with alluminum points. Get brass.

 

[s383mmber1]

3 inch pipes behind the cat are for posers....., not enthusiests.

How did you come about these facts? Dyno sheets to prove? Other than that, i think your talking outta your ass.