Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post - Is over pipe worth getting after installed header?

RToyo86 · 03-02-2023, 01:37 PM

Old thread but I'll comment anyways. OTS tune leave some power on the table. Money is better spent dialing in a custom tune than buying the OP running a OTS tune.

I did this when I installed gruppe-s header. Bought the header from a friend and was supposed to get the OP but his was buggered, so I ordered one and installed the header anyways.

Then pulled the header and installed the overpipe. I could not feel any difference but it was a piece of mind mod. Maybe it's slightly measurable on a dyno with tuning but not enough for your butt to notice.

Similar thing when I swapped over to a JDL 4-2-1 EL. Ordered a 2.5"OP(63mm) to replace the gruppe-s 2.36"(60mm) OP and after logging my tuner didn't notice any difference he could exploit.

03-02-2023, 01:37 PM	#7
RToyo86 Senior Member Join Date: Mar 2018 Drives: 17 Asphalt 86 Location: Ottawa Posts: 2,418 Thanks: 1,903 Thanked 2,670 Times in 1,305 Posts Mentioned: 16 Post(s)	Old thread but I'll comment anyways. OTS tune leave some power on the table. Money is better spent dialing in a custom tune than buying the OP running a OTS tune. I did this when I installed gruppe-s header. Bought the header from a friend and was supposed to get the OP but his was buggered, so I ordered one and installed the header anyways. Then pulled the header and installed the overpipe. I could not feel any difference but it was a piece of mind mod. Maybe it's slightly measurable on a dyno with tuning but not enough for your butt to notice. Similar thing when I swapped over to a JDL 4-2-1 EL. Ordered a 2.5"OP(63mm) to replace the gruppe-s 2.36"(60mm) OP and after logging my tuner didn't notice any difference he could exploit.