REX Ramjet headers

[OzS550]

When I had my Pacemakers headers and mid pipe / resonators fitted, I had no check engine light. Did get the car tuned a few weeks later and never drove especially hard prior to the tune.

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[PKs]

When I had my Pacemakers headers and mid pipe / resonators fitted, I had no check engine light. Did get the car tuned a few weeks later and never drove especially hard prior to the tune.

Interesting that you did not get that. I will be speaking to the exhaust shop on Monday once they are back from xmas. I believe that they are an agent for Pacemaker but I presume they have done other brands as well. I will get the low down on this cel issue from them and report back.

 

[tuf50L]

Interesting that you did not get that. I will be speaking to the exhaust shop on Monday once they are back from xmas. I believe that they are an agent for Pacemaker but I presume they have done other brands as well. I will get the low down on this cel issue from them and report back.

Have a read through some threads in the main sections. It’s luck of the draw. Happens to all brands like Kooks, LTH, Texas Speed etc and some people get lucky for a few weeks.

 

[PKs]

Have a read through some threads in the main sections. It’s luck of the draw. Happens to all brands like Kooks, LTH, Texas Speed etc and some people get lucky for a few weeks.

Just with a quick bit of reading today it can also depend on the type/quality of the cats.

 

[tuf50L]

Just with a quick bit of reading today it can also depend on the type/quality of the cats.

Yep could be.
I’ll be going ramjet just for the better material, equal length, ground clearance, and Phonsy from GMM has been around for a long time and I trust his products,

 

[OzS550]

Just to give you more to consider; Pacemaker claim they are Tuned Length rather than Equal Length.

Discuss...

 

[PKs]

Just to give you more to consider; Pacemaker claim they are Tuned Length rather than Equal Length.

Discuss...

I asked GM Motorsports if their stepped extractors are equal length and apparently they are close but there is an approximate 100mm difference in length in some of the runs.

 

[GT 550]

Whatever happens, bonus points if you do a before and after dyno run prior to getting a tune. Still haven't seen one of these tests anywhere.

 

[PKs]

Whatever happens, bonus points if you do a before and after dyno run prior to getting a tune. Still haven't seen one of these tests anywhere.

Well I won't be getting a before and after because I will be using a dedicated exhaust only shop for install who don't have a dyno. A friend (@Mustang madness2018) intends to use a performance shop for his install along with a dyno tune. Maybe a comparison could be made. Downside to that is the delay in starting the install due to pipes heat and maybe additional cost.

 

[GT 550]

Fair enough Peter, is yours tuned already? @Mustang madness2018 c'mon Troy time to further science . A few of us might be interested in chipping in to defray the cost if that helps.

 

[Mr & Mrs Shrek]

I have dyno afterward but things were such as rush to get it done before Xmas close we did not do a before dyno. I have a video of the dyno run. But, I noticed a big the difference when I left the shop. REX headers, 2018 manifold, Ingen intake and tune all done at the same time.

 

[PKs]

Fair enough Peter, is yours tuned already? @Mustang madness2018 c'mon Troy time to further science . A few of us might be interested in chipping in to defray the cost if that helps.

No, other than a bit of auto gearbox tuning it is fairly stock. I will probably get the engine tune soon after getting the headers.

 

[PKs]

After a lot of toing and froing between Rex and Pacemaker I have done the deal on the latter. I am sure that some may not agree with my choice but after getting opinions and advice I am happy that I have gone with the Aussie made. Getting them coated in unpolished baked Cerakrome https://techlinecoatings.com.au/product/cermakrome-mcx/
base coat followed by air cured Cerakote
https://www.cerakote.com/shop/cerakote-coating/C-148/burnt-bronze
top coat in burnt bronze. 200 cell 100mm hi flow cats will be going on. Looks like it may be around 3 to 4 weeks away for install.

 

[tuf50L]

After a lot of toing and froing between Rex and Pacemaker I have done the deal on the latter. I am sure that some may not agree with my choice but after getting opinions and advice I am happy that I have gone with the Aussie made. Getting them coated in unpolished baked Cerakrome https://techlinecoatings.com.au/product/cermakrome-mcx/
base coat followed by air cured Cerakote
https://www.cerakote.com/shop/cerakote-coating/C-148/burnt-bronze
top coat in burnt bronze. 200 cell 100mm hi flow cats will be going on. Looks like it may be around 3 to 4 weeks away for install.

Nice. There's no wrong answer. Let us know how the install goes and who you use.

 

[Bulutt]

After a lot of toing and froing between Rex and Pacemaker I have done the deal on the latter. I am sure that some may not agree with my choice but after getting opinions and advice I am happy that I have gone with the Aussie made. Getting them coated in unpolished baked Cerakrome https://techlinecoatings.com.au/product/cermakrome-mcx/
base coat followed by air cured Cerakote
https://www.cerakote.com/shop/cerakote-coating/C-148/burnt-bronze
top coat in burnt bronze. 200 cell 100mm hi flow cats will be going on. Looks like it may be around 3 to 4 weeks away for install.

Looking forward to hearing how they turn out and what improvements they make.

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