Notices
ScoobyNet General General Subaru Discussion

Anyone Running a High-Flow Upgrade on Their L5P Duramax?

Old Yesterday | 03:41 PM
  #1  
bomeliv's Avatar
bomeliv
Thread Starter
Scooby Newbie
 
Joined: May 2026
Posts: 6
Likes: 0
Default Anyone Running a High-Flow Upgrade on Their L5P Duramax?

Hello everyone.

I’m considering upgrading my exhaust system and wanted to get some feedback from people who have already made the switch. I use my truck for towing and occasional long highway trips, so I’m mainly looking for better airflow, lower EGTs, and improved throttle response without making the truck excessively loud.

I recently came across the high-flow L5P downpipe option and it seems like a popular upgrade for improving exhaust efficiency and turbo performance.

Has anyone noticed real-world gains after installation? I’d also like to know if there were any fitment issues, drone concerns, or tuning requirements after upgrading.
Reply
Old Yesterday | 03:42 PM
  #2  
bomeliv's Avatar
bomeliv
Thread Starter
Scooby Newbie
 
Joined: May 2026
Posts: 6
Likes: 0
Default

Originally Posted by bomeliv
Hello everyone.

I’m considering upgrading my exhaust system and wanted to get some feedback from people who have already made the switch. I use my truck for towing and occasional long highway trips, so I’m mainly looking for better airflow, lower EGTs, and improved throttle response without making the truck excessively loud.

I recently came across the high-flow L5P downpipe option and it seems like a popular upgrade for improving exhaust efficiency and turbo performance.

Has anyone noticed real-world gains after installation? I’d also like to know if there were any fitment issues, drone concerns, or tuning requirements after upgrading.
thanks in advance for any help
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
wrighty338
General Technical
3
Aug 22, 2009 11:40 PM
SCOBY
Drivetrain
2
Oct 15, 2001 06:28 PM
darren johnson
ScoobyNet General
1
Apr 10, 2001 09:24 PM
Eric Chadwick
ScoobyNet General
1
Aug 31, 2000 11:29 AM


Thread Tools
Search this Thread

All times are GMT +1. The time now is 06:00 AM.