Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post

JBezugs · 10-05-2022, 11:48 AM

I have the JDL 4-2-1 header as well but with no real rasp to speak of. Like others have stated, that's because of using the OEM front pipe with the OEM cat. My catback is a bit drony at highway speeds when under load (going up hills) between like 120-135kph, but the JDM "exhaust cushions" (Hangers) cured maybe 50-60% of the drone. I'm still looking to add a vibrant resonator to it to help curb the remaining drone, or just swapping the catback out all together and going back to stock there, as I drive all highway these days.

With the swap you've done on the front pipe, that's a huge help! But with JDM STI hangers, you should see a significant cut down of drone on your setup as well.

My setup:
- JDL 4-2-1 Header
- Stock OP
- Stock FP
- Invidia R400

10-05-2022, 11:48 AM	#6
JBezugs Good Job Subaru! Join Date: Mar 2016 Drives: '18 440i GC, '24 CX-50 Meridian Location: Toronto, Ontario, Canada Posts: 355 Thanks: 146 Thanked 336 Times in 157 Posts Mentioned: 4 Post(s)	I have the JDL 4-2-1 header as well but with no real rasp to speak of. Like others have stated, that's because of using the OEM front pipe with the OEM cat. My catback is a bit drony at highway speeds when under load (going up hills) between like 120-135kph, but the JDM "exhaust cushions" (Hangers) cured maybe 50-60% of the drone. I'm still looking to add a vibrant resonator to it to help curb the remaining drone, or just swapping the catback out all together and going back to stock there, as I drive all highway these days. With the swap you've done on the front pipe, that's a huge help! But with JDM STI hangers, you should see a significant cut down of drone on your setup as well. My setup: - JDL 4-2-1 Header - Stock OP - Stock FP - Invidia R400 __________________ My (no longer Green) 2017 BRZ Build Thread Last edited by JBezugs; 10-05-2022 at 01:32 PM.