[Bahooki]

I can only imagine how many people ask this, but I'm going to as well. I'd like more than just a catback, but I need to keep my cats for emissions reasons. Besides the Supersprint stuff, can anyone suggest anything? Preferably cheaper, because for the $4k worth of Supersprint exhaust I could have a custom exhaust built.

Thanks,
Nash

[BudVlad]

Supersprint headers don’t have cats. For that reason I bought aFe with free flow cats and hopefully I will pass the emisions. As far as I know aFe are the only headers with freeflow cats.

[Bahooki]

Originally Posted by BudVlad

Supersprint headers don’t have cats. For that reason I bought aFe with free flow cats and hopefully I will pass the emisions. As far as I know aFe are the only headers with freeflow cats.

My bad, I mean secondary cats. Here are the Supersprint ones I'm talking about. http://www.turnermotorsport.com/p-178019-e82-128i-e9x-325i328i330i-supersprint-section-1-metallic-sport-cats.aspx

[jc5988]

maybe just gut the inside of OE secondary, kinda pointless doing high flow for secondary, only 3-5hp there vs 12-15 on the header.

[Bahooki]

Originally Posted by jc5988

maybe just gut the inside of OE secondary, kinda pointless doing high flow for secondary, only 3-5hp there vs 12-15 on the header.

Would that still pass emissions?

[Taskmaster]

We don't know yet.

[jc5988]

Originally Posted by Bahooki

Would that still pass emissions?

per new standard in CA, testing are done without tail pipe probe, it will pass for sure. if your state still uses tail pipe probe, u might wanna ask around in the local forum.

[Rival]

no state goes tailpipe anymore.

if they look under the car your F-ed.....