Thanks! I can definitely say that there is more turbo sound from the de-catted pipe, but it’s still quiet since I’m running the stock midpipe and axle back. As far as performance it can be a mind trick, since I know there is no restriction it feels a bit stronger!

 

Just a bit stronger? lol

 

Well I already had an aftermarket down pipe from TTI which made a huge difference from stock, but it had a high flow cat. Now I am running a de-catted pipe, so it feels a bit stronger than it since there are no restrictions lol.

 

Gotcha.. Has anyone installed the catless dp with the 02 spacer to know for sure this will resolve the engine code without the reflash?

 

I believe Zcon is running an aftermarket de-catted down pipe without a tune, but he did mentioned that he was getting a CEL, not sure if he got it fixed with the O2 spacer. My CEL is off due to the TTI re-flash.

 

Is the gas smell significantly stronger or is it a minor difference between catted and catless?

 

the gas fume definitely smells stronger when you decat/straight pipe. just an aftermarket axle back, i can still smell it a little. maybe because of the gas i put in.

 

Oh yea, you can definitely smell the fumes with the de-catted pipe, but it’s not overwhelming unless you’re standing at the back of the car.

 

PPE engineering de-catted down pipe with OEM exhaust system.

 

Can't wait for my customers to get the downpipe!! With an exhaust it probably will sound so good.

-Josh

 

Blue- BMS tune with PPE down pipe
Red- BMS tune with stock down pipe

 

Updated the first page of this thread with pictures.

 

Do you think there is a noticeable difference in power between TTI 1st gen and PPE de-catted downpipes? I like the fact that the PPE retains the heatshield but there is a guy selling a 1st gen TTI in the classified section for $340 shipped.

 

Nope, they are both well made products, but i do like the fact that the TTI downpipe has an internal O2 fowler to keep the CEL where the PPE uses a traditional 90 degree spacer. You can still use the OEM heat shield with the TTI since the mounting bracket is still over the turbo. The brackets on the PPE are just for the smaller heat shield pieces.

 

Wait so are you saying the PPE downpipe will throw a CEL?