Where's the best place to send the stock twins to have the non sequential conversion done to them? I'm pretty certain Pettit does it but are there any other companies you can recommend?

I keep reading that there are issues regulating boost creep when you do the non sequential conversion. Is there a reliable way in addition to milling out the wastegate to keep boost under control? Is it better to regulate boost pressure with a pill, manual or electronic boost controller, or with a high flow cat?

Thanks,

-H

 

No place to send them to, most do the conversion themselves.
Go to RP and have them do it.

You only can have the WG enlarged and if that is not enough, use a blocking plate in the exhaust. Boost creep is only a problem with a DP and MP, not with a DP and cat.

 

Any amount of backpressure in the exhaust whether it is a restrictive exhaust or a hi-flo cat (over a MP) will help with boost creep. I have a SP, dp, hi-flo, and N1 cb and have a minute amount of creep - have to get a boost controller.

 

Correct ignition tuning will help w/ boost creep too!