ARCHIVE Doug Thorley Headers (2 Viewers)

[revoked]

http://www.arb.ca.gov/msprog/aftermkt/devices/amquery.php

I can't find anything for our trucks.

 

[spressomon]

Still showing "pending"...

 

[yotasavg]

Ya it hasn't changed in forever, that's why I was asking. Hopefully they see the tag a few posts up...

 

[atomsk]

You could always "call for updates" and let us know what they say.

 

[RobRed]

I passed visual again this year... on to the next two years.

Register the Truck in So Lake Tahoe - no smog requirement. There must be a mailbox service or friend

 

[mgilvan]

so we have headers,
does any one mkes a 2.5"-3" catback or exhust system?

 

[CanadianRockyCruiser]

so we have headers,
does any one mkes a 2.5"-3" catback or exhust system?

EMS Powered used to... they are no longer running their shop, from what I hear. I think there is a Doug Thorley Cat Back System too... found one on Amazon, probably elsewhere too.

 

[lrowe_csp]

Yeah, the Doug Thorley catback set works well with the headers. Sounds great but drones at highway rpm. I can't tell how much torque gain i got since I put them on at the same time as a TRD SC install. I think RobRed on the forum actually did a set of dyne runs testing stock, ems, and thorley.