ASR Exhaust Valve controller install guide

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Jun 8, 2026 | 05:12 AM

#61

pjr300

Senior Member

Joined: Mar 2017

Posts: 137

Likes: 21

From: MI

Quote:

Originally Posted by DMeister

Hey there,

Not sure what ya mean. I just went on the ASR website. If I use their “enter your vehicle tool” it comes up as the same one for the P450 and the R.....

I misspoke! Yes I meant the p450 or the r... I was wondering why they needed that specificity for the valve controllers.

Jun 8, 2026 | 05:41 PM

#62

GerbilEngineer

Senior Member

Joined: Nov 2025

Posts: 219

Likes: 238

From: Frisco, TX

Quote:

Originally Posted by pjr300

I misspoke! Yes I meant the p450 or the r... I was wondering why they needed that specificity for the valve controllers.

My guess would be the switch from vacuum to electric valves with the 2020 model year. The R (with 550HP) runs through 2019. The P450 starts in 2020.

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