Function Werk 2.0L Supra Catless Down-Pipe

[SupraMKV2.0]

Nope no CEL light everything runs like it should

Well that is awesome and impressive on a catless DP. They must've pulled the O2 sensor out just far enough for it to read at "normal" levels.

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[SupraMKV2.0]

I’ve put approximately 250 miles (and maybe 20 key cycles) on the car with the new catless DP installed and still no CEL.

So far, the Function Werk Catless Downpipe is operating as advertised. It sounds good paired with the OEM catback exhaust and there is a noticeable bump in throttle response, turbo spool and midrange / upper range power.

Now all the car needs is a tune to really wake her up...

 

[Probaholic1]

I’ve put approximately 250 miles (and maybe 20 key cycles) on the car with the new catless DP installed and still no CEL.

So far, the Function Werk Catless Downpipe is operating as advertised. It sounds good paired with the OEM catback exhaust and there is a noticeable bump in throttle response, turbo spool and midrange / upper range power.

Now all the car needs is a tune to really wake her up...

How audible is the turbo spool sound? I wish there wasn't such a long wait. for them.

 

[SupraMKV2.0]

How audible is the turbo spool sound? I wish there wasn't such a long wait. for them.

It's more audible on the outside of the car than it is on the inside.

With the valve closed, you wouldn't even be able to tell that the car has a catless DP. With the exhaust valve open it comes alive a bit while idling and of course much more so when the vehicle is under load. It snaps, crackles and pops on deceleration and sometimes on the upshifts too.

I'm happy with it so far...
- No drone
- Not too much of a raw fuel smell
- Good sound when the valve is open / Sounds stock when the valve is closed

 

[Probaholic1]

It's more audible on the outside of the car than it is on the inside.

With the valve closed, you wouldn't even be able to tell that the car has a catless DP. With the exhaust valve open it comes alive a bit while idling and of course much more so when the vehicle is under load. It snaps, crackles and pops on deceleration and sometimes on the upshifts too.

I'm happy with it so far...
- No drone
- Not too much of a raw fuel smell
- Good sound when the valve is open / Sounds stock when the valve is closed

That's awesome, excited to get mine.

 

[VeilsideHunter]

is that small pin hole the only hole the de-fouler has in it? or does the bottom (not pictured)open as well? this is a cool idea.

 

[SupraMKV2.0]

is that small pin hole the only hole the de-fouler has in it? or does the bottom (not pictured)open as well? this is a cool idea.

I have to be honest...I don't remember if the bottom of the "defouler" is open to the interior of the downpipe. That tiny orifice may be what is fooling the sensor, but the bung also has SS packing in it too.

I can tell you that it does work so far. I've put approximately 600 miles on the car of varying driving methods (aggressive acceleration, constant cruising speeds, 100 key cycles, etc) and still no CEL.

 

[VeilsideHunter]

oh wow. Stainless steel packing...like steel wool? dam...what wizardry.

 

[Ben22]

What about the FI DP? Quality wise?

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