i run the ams resonated testpipe.
make awesome power for stock turbo on mustang dyno.
pop really loud once in a while, but never make a flame.
would say that there is no power loss at all since the resonator is on the outside of the pipe.
never had a problem with law enforcement yet, even when they stand in the middle of the road slowing down traffic to a crawl just to see your seatbelt ison

 

If your car shoot flames with a basic test pipe, it will do a same with a resonated one also, if doesnt then it will not do it with a straight pipe either, there is no difference there. As i said the basic difference is the a little less noise. That is all.
Only difference is the resonated pipe has an extra sound deathening layer inside:

so there for a little thicker then a simple test pipe which is basically nothing but a tube.
here is how basically the resonated test pipe looks like.






this is a classic test pipe for an Evo :


i hope this is clears it out for everyone.

Rob

 

Why does it shoot flames?

 

heat and unburned fuel meets the fresh air

 

I had a resonated test pipe then upgraded to a normal test pipe, and really, not too much difference. I was expecting a huge sound change as everyone always goes on about how they hate how loud their car is. As far as performance again nothing too noticeable but the popping and fire is more regular now.

 

+100

 

Is it possible to put a test pine in the stock dp and stock catback. Just a test pipe???

 

Yes, and you can make decent gains in power, however, it's still recommended to get a tune as you'll throw a CEL.

There are a few aftermarket exhausts that look near factory in appearance and still keep the sound level down and will help make the most out of the test pipe and tune though. Think of this scale of comfort:

Descending Loudest to quietest :

TP --------> Louder CBE

TP --------> Quieter CBE

ResonatedTP/HFC ------> Louder CBE

ResonatedTP/HFC -----> Quieter CBE

OE Cat -----------> OE CBE

 

Thanks man.

 

It's all personal preference

 

I wish it were that simple, but we know that it isn't. For example, you can run a 3" DP and test-pipe into a T1R 76S and it will be quieter than an OE DP and cat into a Agency Power Y-pipe exhaust.

 

I was being very generic about it. Ultimately the CBE portion can make huge changes to stuff. Best way to buy is to hear an Evo with a setup and decide you like it

I went with the GReddy Ti-C because I liked that it has a resonator and always sounded good in the dozens of videos I listened to off youtube.

I bought it, installed it and love how I can cruise at 75-80 and it doesn't drone, yet love the deep sound I get at lower speeds with heavy throttle.

EDIT:

Oh and I was super partial to single-exit

 

 

I just installed the Specialty X CBE w/ TP and it sounds awesome. Not too loud but deeper and throaty-er than stock. Just took the wife and child for a quick spin and not one objection during casual conversation.

Here's an entire thread on "big *** lawnmowers".

https://www.evolutionm.net/forums/ev...st-thread.html

 

thanks for clearing things up guys,
i think i've limited my options to 2 setups:
ETS v2 regular with resonated TP, or ETS vs quiet with a regular TP

anyone heard both? which do you think will be louder?