Full 3" exhaust and catless DP

[Tommyboy4725]

Just wondering what you guys think about doing a catless down pipe and a full catless 3" exhaust... I think it would sound good, probably do a magnaflow high flow muff in front of the axle. I found a DIY pipe kit for just under 300

 

[rdss]

I think it will look cool but that's about as far as using that large of pipe will get you. There is just not really a need to go that big on a 1.4 with a stock turbo.

 

[Tommyboy4725]

Not "necessary" but I think it would sound good, and nobody to our knowledge has done it.

 

[rdss]

Agreed. Do it! Post pics when it's done as well. It might get tight around the rear axel.

 

[mitdr774]

3" was probably almost to big for the T3/T04E I was running on my 2.4L Cavalier. I dont see the 1.4T needing any larger than a 2.5" with the stock turbo. How big is the outlet on the turbo?

 

[rdss]

The ZZP v band flange on the turbo side is 3". It was verified in another thread today.

 

[Eric Smit]

3" is the outlet.

Go for it! Be a visionary!


-Eric Smit

 

[Tommyboy4725]

Well I just realized the catless DP is 2.5" so idk if there's much point, with it going down to 2.5 then back to 3

 

[Eric Smit]

There is always a point, but you could have your own downpipe made.


-Eric Smit

 

[Tommyboy4725]

$$$$$$

 

[Eric Smit]

Nah, only $$.


-Eric Smit

 

[Tommyboy4725]

Lol if we were talking double digits for a custom 3" downpipe I'd do it

 

[CoHPhasor]

The secret is always the *shape* of the DP, then the exhaust.
If our outlet was 2.5" we could use an expansion DP that was properly designed for great benefit.

I'd have to say there's nothing better than to go 3" as long as it's properly setup/mandrel.
Your spool would be sweet and shift recovery would be awesome.

Can't speak for the sound, the system's entirety has more to do with it.

 

[alteredego]

I'd love to see it.

- Drew

 

[mitdr774]

Also keep in mind how much room a 3" pipe will take up.

This is under a Cavalier. It took a lot of work to get it to tuck up into the exhaust tunnel and clear the rear twist beam.

 

[Eric Smit]

I have plenty of room under my car, and that's with a resonator with a 4" body.

-Eric Smit

 

[mitdr774]

I have not spent much time under my SOnic yet. I was not aware we had that much room. How much room is there to go over the twist beam?

 

[Eric Smit]

Not as much, but looks like it could squeeze a 4" if you really wanted to. 3" should be an easy fit.

http://www.mandrelbendingsolutions.com/servlet/StoreFront

OP, there is a link where I buy my bent pipe.


-Eric Smit

 

[mitdr774]

Had no clue that these cars had that much room over the twist beam. I guess I should spend more time getting to know my car. Its only been 14.5K miles, and I still have not made any major changes. See if I cant hold off till afterwinter is over. That will put me over 20K.

 

[Eric Smit]

I'm at 23,xxx now. Been modded since 200 or so. ;P we just see our cars a little different.


-Eric Smit