[anakratis]

Heyo,

Anyone know if 200 cell downpipes will cause CEL? I just saw MAD's new catted downpipes launching in December. Was originally looking at AA's 400 cell GESI downpipes.

Thanks!

[mike@x-ph.com]

The 200 CEL is not the main factor in the CEL. It's the quality of the cats used.

The MAD downpipes, similar to most catted downpipes on the market, will eventually trigger the check engine light.

The Active Autowerke does not because it uses EPA-approved GESI cats.

[destoyan]

I use the R44 Sportcat DP and have so far no CEL issues.
mike@x-ph.com is right!

[Info@mad-us.com]

Originally Posted by destoyan

I use the R44 Sportcat DP and have so far no CEL issues.
mike@x-ph.com is right!

I believe they are using a o2 spacer to achieve this and has nothing to do with the Cats themselves.

You could easy install them on either of our catless or catted versions and get the same no cel result.

[anakratis]

Originally Posted by mike@x-ph.com

The 200 CEL is not the main factor in the CEL. It's the quality of the cats used.

The MAD downpipes, similar to most catted downpipes on the market, will eventually trigger the check engine light.

The Active Autowerke does not because it uses EPA-approved GESI cats.

Got it—thanks Mike

[TrackM4x]

Originally Posted by anakratis

Heyo,

Anyone know if 200 cell downpipes will cause CEL? I just saw MAD's new catted downpipes launching in December. Was originally looking at AA's 400 cell GESI downpipes.

Thanks!

Look for brands that use quality HJS cats when it comes to 200 cell cats. Redstar uses them but most don't because they cost more. If the brand doesn't list their 200 cell cats as HJS then you can assume they are using a cheaper low quality one which is more likely to cause a CEL.

[anakratis]

Originally Posted by TrackM4x

Look for brands that use quality HJS cats when it comes to 200 cell cats. Redstar uses them but most don't because they cost more. If the brand doesn't list their 200 cell cats as HJS then you can assume they are using a cheaper low quality one which is more likely to cause a CEL.

Yep, I know Fabspeed uses HJS cats. If I'm paying that much I'd rather go for 400 cell from AA though. Catless is way too loud for me haha.

[TrackM4x]

Originally Posted by anakratis

Yep, I know Fabspeed uses HJS cats. If I'm paying that much I'd rather go for 400 cell from AA though. Catless is way too loud for me haha.

Check out RedStar exhaust downpipes from counterspacegarage.com. You can get a 400 cell GESI Gen 2 catted downpipe with heat shielding for $300 less than the AA. About $700 less if you don't option the heat shielding. Orders are custom made so expect about a 2-3 week lead time.

[anakratis]

Originally Posted by TrackM4x

Check out RedStar exhaust downpipes from counterspacegarage.com. You can get a 400 cell GESI catted downpipe with heat shielding for $300 less than the AA. About $700 less if you don't option the heat shielding. Orders are custom made so expect about a 2-3 week lead time.

WOW good shout! Will definitely check them out thank you!

[Info@mad-us.com]

200 cell is just not enough to stop a check engine light regardless of the quality or brand.

The purpose of the 200 cell is max air flow along with the reduction of smell and sound.

[evoi19]

Originally Posted by anakratis

WOW good shout! Will definitely check them out thank you!

Apex Built also has gesi catted dp's at a very competitive price. A nice alternate solution.

[mike@x-ph.com]

Originally Posted by evoi19

Apex Built also has gesi catted dp's at a very competitive price. A nice alternate solution.

Yes, but they use the older version of GESI cats.

Active used the same cats on their B58 and N55; a year later, most of them triggered the check engine light. Active replaced all the downpipes for free, and they switched to the newer GESI cats.

[evoi19]

Originally Posted by mike@x-ph.com

Yes, but they use the older version of GESI cats.

Active used the same cats on their B58 and N55; a year later, most of them triggered the check engine light. Active replaced all the downpipes for free, and they switched to the newer GESI cats.

Didn't know that! Good lookin out