Basic Bolt on mods intake, exhaust tuning guide

[86TOYO2k17]

Originally Posted by Slade

I just installed Skunk2 EL Catless Headers, I have a Greddy SP Elite Axleback, and did the stage 2+ tune, would it make a difference if I upgraded to a full catback exhaust, like an Invidia Q300 for example? Thanks

Catless FP will get you a couple more ponies.

A catback will make you sound like you got a couple more ponies.

[Slade]

Originally Posted by 86TOYO2k17

Catless FP will get you a couple more ponies.

A catback will make you sound like you got a couple more ponies.

Thanks! I'll keep my axle back then.

[gen3v8]

So my Mrs Brz Ts 2018 with Q300 CB for sound and a OFT tune will be pretty good?Not sure here I`m used to Wrx

[gen3v8]

Fitted PSR catless header and O/pipe, stock front pipe, Q300cb and OFT e85 V4.xx tune. Sounds great and pulls from low rpm getting stronger as revs increase

[BlueridgeBRZ]

Originally Posted by phrosty

Nobody knows definitively. I don't think anyone has found it in the software the dealers have (TechStream) so you're probably safe there but that doesn't mean corporate doesn't have something fancier they can do if they're trying to avoid paying for a blown engine under warranty.

Good thread. New to brz/86. Sorry to quote old post, but does this still apply? or have the Subaru/Toyota dealerships started using any newer software that will detect tuning?

[phrosty]

Originally Posted by BlueridgeBRZ

Good thread. New to brz/86. Sorry to quote old post, but does this still apply? or have the Subaru/Toyota dealerships started using any newer software that will detect tuning?

To my knowledge there have been zero reports of tunes being detected by dealer techs.

[steve99]

Originally Posted by phrosty

To my knowledge there have been zero reports of tunes being detected by dealer techs.

https://www.ft86club.com/forums/showthread.php?t=130030

[Lav]

Hey guys,

Can I heat cycle while the car is on stands? I dont want to

reinstall the 2 skid plates, lower car, raise car, remove skid plates

If I can just turn the car on while its lifted, let it warm up, and then cool it down to retorque everything.

For reference, I had UEL Gruppe S for 3 years and put my stock headers back in for smog, and now I'm going to go back on with the UEL gruppe S. Do I even need to worry about heat cycles on a used headers?

[FRSBRZGT86FAN]

Originally Posted by Lav

Hey guys,

Can I heat cycle while the car is on stands? I dont want to

reinstall the 2 skid plates, lower car, raise car, remove skid plates

If I can just turn the car on while its lifted, let it warm up, and then cool it down to retorque everything.

For reference, I had UEL Gruppe S for 3 years and put my stock headers back in for smog, and now I'm going to go back on with the UEL gruppe S. Do I even need to worry about heat cycles on a used headers?

It's just best practice to drive about for a week, maybe mix in some spirited driving, then go back and double check.


I did that back when I still had my car and the cnt uel and didn't notice anything out of spec with my torque wrench.



If you have a tuner or datalogging tools look for LTFTs being +/- 10, if they are higher than that you most likely have a leak.