Who here has got the RRM headers,
awile back I bought the magnaflow cat back exhaust, with stock headers, and everything sounded good. and ever since i got my Headers put on
when i floor it above 3K i get a RASPY sound has anyone eles have this problem?

 

That's because you now don't have a catalytic converter. Add in a highflow cat and it'll go back to sounding how it did.

 

Yep, you need a high flow cat, and possibly 1 or 2 resonators to quietn it down...

 

the cat was enough to fix it IMO.

 

A HF cat just be prepared to still have the CEL

 

^^thanks guess ill look in to getting one soon.

 

High flow cat is where it is at. The headers are great but people are surprised when t hey have a totally straight through exhaust. They tend to get loud, no matter what header or what car.

ROAD/RACE

 

no more CEL here. RRM cat header and exhaust. no CEL elminator required. dont know why its not a problem but i wont complain.

 

Doesn't make sense to not have a CEL, since the second 02 should be noticing more air flow and triggering a P420 code. Maybe my car is just cursed

 

Nah Adam, you're not the only "lucky" person...

I have the CEL. Same as you, RPW headers..

 

Does the HF cat have to be welded in a certain place on the DP? For clearance issues.

 

It is weird isn't it... I had my RPW headers on for over 6000klm and not once did I get a CEL - I have one now simply because of the larger injectors which is a easy fix to rectify...

 

yeah i have the RRM, but i think its the same hit or miss deal for those as the RPW. for once luck is on my side

 

i just installed the RRM header and DP and it is pretty loud and raspy. especially since i also have the magnaflow catback. but hopefully i'm getting a high flow cat in put in 2moro.

 

The sound of performance...