[evanrs123]

I previously bought a vrsf high flow downpipe. The cat was really bad and it clogged and then melted. I don't want to go catless but what other high-flow downpipes should I look at, ones that won't melt lmao.

[alohasurftoad]

the two best catted downpipes are fabspeed and active autowerke, but you will ruin any catalyst with excessive pops/burbles/gunshots.

go catless or run normal pop/burbles

[evanrs123]

Originally Posted by alohasurftoad

the two best catted downpipes are fabspeed and active autowerke, but you will ruin any catalyst with excessive pops/burbles/gunshots.

go catless or run normal pop/burbles

Yea I'm running stock pops/burbles I don't have a tune for it

[alohasurftoad]

Originally Posted by evanrs123

Yea I'm running stock pops/burbles I don't have a tune for it

ahh ok. imo, "you get what you pay for", especially with vrsf. both Fabspeed and AA are quite expensive. Fabspeed uses HJS Euro catalyst and Active Autowerke uses GESI. even without tune, both are guaranteed not to trigger a CEL, the GESI being also EPA registered and OBD2 compliant. i believe the AA is slightly cheaper.
.

[im_an_alien]

CG precision is another good one that's CEL free. If you have lots of cash I believe Akra makes one too.

[Wires]

Bought an ER one and haven't had any CEL's. Been fine for the last 3-4 years, while running BM3 Stage 2 (burbles disabled).

[im_an_alien]

Originally Posted by Wires

Bought an ER one and haven't had any CEL's. Been fine for the last 3-4 years, while running BM3 Stage 2 (burbles disabled).

Isn't that because BM3 is supressing the CEL? The few catted DPs mentioned above are CEL free even without a tune and will pass emissions

[Vinnief96]

Ran evolution racewerks DP never had a cel, ran burbles medium and hard, for around 25k miles no issues

[Wires]

Originally Posted by im_an_alien

Isn't that because BM3 is supressing the CEL? The few catted DPs mentioned above are CEL free even without a tune and will pass emissions

Nope, I don't use the BM3 CEL suppression. It just hasn't thrown any CEL's. Previously the VSRF one would throw a CEL every day going to work.

[evanrs123]

Originally Posted by Vinnief96

Ran evolution racewerks DP never had a cel, ran burbles medium and hard, for around 25k miles no issues

is it a 200 cel downpipe or 400? do you know?

[RuckusBox]

VRSF, cheap and does the intended job at a high quality.

Throw a tune on their with BootMod3 and you will never get a CEL or worry about burbles if you don’t want them.

[evanrs123]

Originally Posted by RuckusBox

VRSF, cheap and does the intended job at a high quality.

Throw a tune on their with BootMod3 and you will never get a CEL or worry about burbles if you don’t want them.

Yea I think the cat in there wasn't good, so it melted and that's what through the cel

[thejeremyman9]

Almost every single DP besides fabspeed, AA, and CG precision will eventually throw a CEL. ER is hit or miss, but even if it doesnt throw a CEL, it will generally not get the catalyst monitor ready. If you need the catalyst monitor to be ready for emissions, only get one of the first 3. In either case i would recommend one of those three so you can do it once and do it right.

[Cytoplasm0671]

AA catted lover here. Fantastic downpipe

[Mcc514]

AA for the win imo. Ran an ER for a while but the AA is far superior in towards of build quality and performance.

[Wires]

Originally Posted by Mcc514

AA for the win imo. Ran an ER for a while but the AA is far superior in towards of build quality and performance.

Not that I care either way, but what are you basing "superior performance" on? None of these companies make cats, so they buy (most likely the same cats) from a 3rd party supplier.

Just curious how you measured "superior performance".

[avery_b58]

Originally Posted by im_an_alien

CG precision is another good one that's CEL free. If you have lots of cash I believe Akra makes one too.

+1 on the CG precision. I was running a catless VRSF but I didn't like the smell in my garage. I didn't notice any loss of power switching from catless to the CG DP.

[Vinnief96]

Originally Posted by evanrs123

is it a 200 cel downpipe or 400? do you know?

Sorry for the late reply it was a 200 cel count

[Vinnief96]

Originally Posted by thejeremyman9

Almost every single DP besides fabspeed, AA, and CG precision will eventually throw a CEL. ER is hit or miss, but even if it doesnt throw a CEL, it will generally not get the catalyst monitor ready. If you need the catalyst monitor to be ready for emissions, only get one of the first 3. In either case i would recommend one of those three so you can do it once and do it right.

Passed inspection for 3 years with catalyst monitor “ready”, never had a cel or any issues