987.1 headers
Instructor
Joined: Oct 2019
Posts: 153
Likes: 71
The more important question would be how anyone changing the headers is able to remove the original head studs/manifold bolts or original O2 sensors without them snapping or damaging threads. The original O2 sensors and manifold headstuds tend to get married to the structure. Permanently.
Last edited by Fresh.Sizzle; May 11, 2021 at 04:15 PM.
Racer
Joined: Jan 2020
Posts: 348
Likes: 152
From: Chester County, PA
Running long tube headers with high flow cats is a great alternative. HJS 200 cell catalytic converters flow almost as freely as a straight pipe but without the smell of gas while being emissions compliant. I've read they claim to flow 92-97% (if I recall correctly...definitely mid 90s) of a straight pipe.
Racer
Joined: Aug 2011
Posts: 365
Likes: 37
From: Toronto, ON
I just installed catless headers I ordered from UK topgear, very reasonable price and beautiful piece. I had no CEL with them even without spacers. I just added a softronic tune to take advantage of the mods, cant' wait to try it on track.
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Instructor
Joined: Oct 2019
Posts: 153
Likes: 71
How do you like those headers and the catless odour?
How much of a performance difference did you notice, if any, between the:
-stock map (w headers) vs. softronic flash (w headers)?
-I would love to hear these headers in person, incomparison to other brands.
Last edited by Fresh.Sizzle; May 11, 2021 at 04:23 PM.
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Instructor
Joined: Oct 2019
Posts: 153
Likes: 71
1. O2 Spacers. Not a permanent solution, it reduces the chances of getting a CEL, but eventually at some point (every few months) you will still get a CEL. In which case; either -get an OBD scanner code-reset device, or -disconnect battery and reconnect.
2. ECU Tune that incorporates a map to eliminate/account for the CEL/code.
Last edited by Fresh.Sizzle; May 11, 2021 at 04:17 PM.
