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RODSCIVIC

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I settled on the tires and tire size for the 19x10 +40 ZE40!

265/35R19 Continental ECS 02

Thankfully no rub in any instance so far, and the ride quality hasn’t been impacted with the move to 19’s.

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Keep us updated on the tire setup. I’ve got the same wheel specs and was hesitant to go with a 265/35 because of possible rubbing. I’m on Eibach Pro Kit with the front pins pulled.
 

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I’d also like your input on steering response and grip with those tires in that size. I am considering 18x10” wheels with those tires in 265/35/18 hoping the wider wheel will stretch the tire slightly to help with sidewall flex on the higher profile tires.
 

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Spring’s here, and the build season is moving fast. First up: the Cusco wing risers.

I’ll be honest—they’re pricey for what they are. But the quality and finish are spot on, and the look makes it worth it. Plus, they hold value well, so if I decide to move on from them later, I should be able to recover a good portion of the cost.

The raised OEM wing setup looks incredible now. Next step is dialing in the front end—on the hunt for a lip to balance out the rear aero and tie the whole look together.

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https://unity-performance.com/products/cusco-high-position-rear-wing-brackets-23-civic-type-r-fl5
I'm sure it looks better in person, but I'm digging the Cusco wing risers. I might pull the trigger. In theory I should get the Mugen Group A spoiler to finish my build, but I love the look of the OEM carbon fiber spoiler enough to not want the Mugen spoiler.

Did the Cusco wing risers use the oem mounting gasket/seals?
 
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Keep us updated on the tire setup. I’ve got the same wheel specs and was hesitant to go with a 265/35 because of possible rubbing. I’m on Eibach Pro Kit with the front pins pulled.
I’d also like your input on steering response and grip with those tires in that size. I am considering 18x10” wheels with those tires in 265/35/18 hoping the wider wheel will stretch the tire slightly to help with sidewall flex on the higher profile tires.
The switch from the DWS06+ to the ECS02 is definitely noticeable. I took the car out last night for a quick drive to get a feel for the grip, steering response, and how the suspension is handling the move to 19s. Steering response feels a little sharper, which I’d assume is mostly due to going from a UHP all-season to a stickier summer tire.

What I’m still trying to wrap my head around, though, is the ride quality. I expected the 19s to feel choppier, but since both setups are running a 35-series sidewall, that hasn’t really been the case. Surprisingly, the 19s actually feel a bit more comfortable.

The only thing I can think of is that the 19” wheel and tire setup is a couple pounds heavier overall. Maybe the added unsprung weight is making the setup feel a little less reactive to small road surface changes, almost like it’s not getting tossed around as easily? Not sure if that’s the right explanation, so I’m curious if someone has a better technical take on it.

Oh, and still no rub! Very happy about that :)
 
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I'm sure it looks better in person, but I'm digging the Cusco wing risers. I might pull the trigger. In theory I should get the Mugen Group A spoiler to finish my build, but I love the look of the OEM carbon fiber spoiler enough to not want the Mugen spoiler.

Did the Cusco wing risers use the oem mounting gasket/seals?
The more I see the car with it, the more I like it! Still trying to figure out the Lip/Splitter situation to perfect the look. If I catch a part-out for an Exceed Lip, I may have to jump on it!

Cusco Risers come with their own gasket for each riser. Friend of ours who came over to install it has done a number of wing and riser swap on FL5's, and he commented that the Cusco hardware, fit and finish is much better than the rep brand's version of these risers.

11th Gen Honda Civic Unity Performance Humza's FL5 Build Thread WhatsApp Image 2026-04-30 at 10.35.40 AM
 


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The switch from the DWS06+ to the ECS02 is definitely noticeable. I took the car out last night for a quick drive to get a feel for the grip, steering response, and how the suspension is handling the move to 19s. Steering response feels a little sharper, which I’d assume is mostly due to going from a UHP all-season to a stickier summer tire.

What I’m still trying to wrap my head around, though, is the ride quality. I expected the 19s to feel choppier, but since both setups are running a 35-series sidewall, that hasn’t really been the case. Surprisingly, the 19s actually feel a bit more comfortable.

The only thing I can think of is that the 19” wheel and tire setup is a couple pounds heavier overall. Maybe the added unsprung weight is making the setup feel a little less reactive to small road surface changes, almost like it’s not getting tossed around as easily? Not sure if that’s the right explanation, so I’m curious if someone has a better technical take on it.

Oh, and still no rub! Very happy about that :)
Do the 265/35/19s affect acceleration noticeably being 1” bigger in diameter?
 
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Do the 265/35/19s affect acceleration noticeably being 1” bigger in diameter?
Not that I've noticed with day to day driving. I'd have to time 60-130 runs back to back on the same road surface, same weather conditions to tell the difference.
 

RODSCIVIC

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The switch from the DWS06+ to the ECS02 is definitely noticeable. I took the car out last night for a quick drive to get a feel for the grip, steering response, and how the suspension is handling the move to 19s. Steering response feels a little sharper, which I’d assume is mostly due to going from a UHP all-season to a stickier summer tire.

What I’m still trying to wrap my head around, though, is the ride quality. I expected the 19s to feel choppier, but since both setups are running a 35-series sidewall, that hasn’t really been the case. Surprisingly, the 19s actually feel a bit more comfortable.

The only thing I can think of is that the 19” wheel and tire setup is a couple pounds heavier overall. Maybe the added unsprung weight is making the setup feel a little less reactive to small road surface changes, almost like it’s not getting tossed around as easily? Not sure if that’s the right explanation, so I’m curious if someone has a better technical take on it.

Oh, and still no rub! Very happy about that :)
Glad to hear it. I wonder how the Indy's would fair in that same spec. Ive always been of fan of the Indys. As far as comfort goes, I don't have any technical explanations but I felt the same even with a 265/30. If you decide to switch to the DSC Module there will be even more comfort to be had with the ability to use any mode on the street, no joke.
 

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Not that I've noticed with day to day driving. I'd have to time 60-130 runs back to back on the same road surface, same weather conditions to tell the difference.
I'm on 255/35 R19 wheels/tires left over from my FK8. I would think that the 0-60 time would be faster since you should hit it at the top of second gear now. I bet 60-130 is a bit slower though.
 
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Glad to hear it. I wonder how the Indy's would fair in that same spec. Ive always been of fan of the Indys. As far as comfort goes, I don't have any technical explanations but I felt the same even with a 265/30. If you decide to switch to the DSC Module there will be even more comfort to be had with the ability to use any mode on the street, no joke.
Historically the Indy’s are louder, especially as they age. In terns of sizing, their section width is narrower than most tires, so I could have even pushed a 275/35 if I went with the Indy’s.

I have the SDI currently installed, it’s been great since September. I’ve had a DSC unit laying around since December, and I’m going to test it out this week to see how it compares.
 
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I'm on 255/35 R19 wheels/tires left over from my FK8. I would think that the 0-60 time would be faster since you should hit it at the top of second gear now. I bet 60-130 is a bit slower though.
Yep, 60 will come right at the top of 2nd. I can’t comment anymore about being slower now that the car received an Inlet, Intake, and an Intercooler Kit 🏎💨

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