Recent content by Kawman

The OEM downpipes can be purchased today for $475 and $450. Hard to believe that after profit to the selling dealer, the material and labor cost to shape and weld the piping, there would be enough left for a more technical 2 stage cat assembly that contains palladium, platinum and rhodium.

Just because it's on the internet doesn't mean it's true, but..... Where are the 4 catalytic converters on a Cadillac CT4-V Blackwing? AI Overview The 4 catalytic converters on a Cadillac CT4-V Blackwing (3.6L Twin Turbo V6) are located in the exhaust system directly off the engine. There...

The primary cats are further upstream, closer to the turbos (untouched). The down pipes only contain the secondary cats.

A few of us are doing a group buy for ARH downpipes for our 4BW's. Join the group and get our discount. Here's a link to their products for the 5BW. PM me if interested. I just learned about cats while deciding on the ARH downpipes. The OEM cats are 800 cell, 400 cell is the least...

Very busy day, been on the phone for hours and learned a lot. I spoke with Nick, the owner of ARH. He connected me with a friend of his in Long Island that has two 4BW's, one as his daily and one as a track car. He says he loves these down pipes and said they are not raspy. Same tone as OEM...

Join us in the Blackwing Mods/Tech/Performance area. This topic is being discussed there now.

The Crest Performance downpipes are $1,650 with the crossover pipe and $1,550 without. Hell of a difference from the $2,900 for the ARP downpipes. Yes, they both use G-Sport cats. I had to dig into this price discrepancy. The CP downpipes state they use the Gen2 E300 cats, ARP downpipes...

OK, I'm on it. That's 2 confirmed. I'm sure the larger the group the better the price, so please speak up. https://americanracingheaders.com/products/cadillac-ct4-v-blackwing?variant=50862877147352

If you two are game, I'll make a call and try to negotiate a discounted deal for 3 of them. I would want a catted pipe. Anybody else want to join the buying group?

I've heard good things about the GiroDisc rotors, but haven't heard from anyone having used the Paragon rotor rings. I would guess the GiroDisc rotors probably weigh about a pound less each if you care.

Welcome! The drop is Swift Spec "R" springs. That will change the geometry in the rear requiring shorter toe links.

You're on the right path. Lower your cold pressures to whatever they need so when they get hot you're at 34psi. You've already changed your brake fluid to Castrol SRF or the like, right? On the track you will boil OEM oil in the calipers. That's your first must do!

Tire wear - Every option costs something! Those pictures show when you're on the track you are pushing hard. If you are going to continue to track it, I don't see you being happy on your track days with a detuned suspension for tire life. And those track days are going to destroy the outer...

Look for an impact mark on the other wheel. Ya know those changes of road height by a couple of inches when paving is being done. Someone could have come across one of those at a high speed and damaged both tires in the same way simultaneously.

OK, so the wheel didn't get bent. That doesn't change the fact that we are not looking at a wear issue. There is a significant impact mark on the wheel in your photo. There is a huge chuck of rubber missing from the inner sidewall exactly at the impact mark on the wheel in your photo. There...