Going back to stock catback with a custom tune? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

theman233 · 03-08-2017, 05:20 AM

Hello,

I currently have an ecutek tune for headers/overpipe, frontpipe, and catback. I was just wondering how me going back to a stock catback would effect the car since that's not what the tune was made for. I understand there are basically no gains to be had from the catback, nor is the stock catback really restrictive. So would everything be good? I think I'm over the loud exhaust sound, even with my Q300...

Do you guys think me going back to stock from the Q300 even tone the car's sound down a noticeably? Thanks

Icecreamtruk · 03-08-2017, 10:46 AM

Not your exact same problem but I switched to a TRD catback (more or less same restriction level as stock one) from a custom one after having it tuned. The car has been fine for over a year and a dozen track days after the switch. I felt like I lost little to no power in doing so (cant compare with numbers, the difference would be so small that day temp or % humidity could skew the results).

Cole · 03-08-2017, 11:05 AM

It will be fine and very quiet

03-08-2017, 05:20 AM	#1
theman233 Member Join Date: May 2016 Drives: 2013 subaru brz Location: indiana Posts: 10 Thanks: 0 Thanked 7 Times in 2 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Going back to stock catback with a custom tune? Hello, I currently have an ecutek tune for headers/overpipe, frontpipe, and catback. I was just wondering how me going back to a stock catback would effect the car since that's not what the tune was made for. I understand there are basically no gains to be had from the catback, nor is the stock catback really restrictive. So would everything be good? I think I'm over the loud exhaust sound, even with my Q300... Do you guys think me going back to stock from the Q300 even tone the car's sound down a noticeably? Thanks

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03-08-2017, 10:46 AM	#2
Icecreamtruk Senior Member Join Date: Dec 2015 Drives: Track preped NA FRS Location: Montreal, Canada Posts: 987 Thanks: 1,056 Thanked 681 Times in 405 Posts Mentioned: 12 Post(s) Tagged: 0 Thread(s)	Not your exact same problem but I switched to a TRD catback (more or less same restriction level as stock one) from a custom one after having it tuned. The car has been fine for over a year and a dozen track days after the switch. I felt like I lost little to no power in doing so (cant compare with numbers, the difference would be so small that day temp or % humidity could skew the results).

03-08-2017, 11:05 AM	#3
Cole Not a troll Join Date: Apr 2015 Drives: FR-S Location: Canada Posts: 5,104 Thanks: 8,237 Thanked 5,399 Times in 2,694 Posts Mentioned: 266 Post(s) Tagged: 4 Thread(s)	It will be fine and very quiet

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