You don't need 6 pistons for that anyway.
4 pistons and good track pads are all you need. Then maybe add cooling ducts if they still get too hot.
The 6 pistons are a ton of added weight.
The coilover tire clearance issue is why many opt to not run a true coilover in the rear, and many kits just give you what's needed to run a coilover spring in the stock location with a height adjuster.
If a torque arm really offered the best traction, I think more drag racers would be using them.
I'd just have it done professionally. Bret Barber does a great job. I've seen too many DIYers who don't know what they're doing butcher their manifolds.
I imagine it didn't have 20s stock. 20s are always going to be harder to hook on.
Even though the tires are wider, they could actually grip less due to being a 20 with less sidewall. Width isn't everything.
Which hole are the relocation brackets on? That could make a huge difference as well. The...
I'd first try to fix the one you have. Nothing aftermarket is going to be as well-sealed as oem and most of them will have worse output.
Make sure the O-ring on the cap is still good, and clean it if it's dirty. The cap could also not be fully seated correctly, pretty easy to mess that one up...
I'd still worry about rust because $150 headers. They can say it's whatever type of stainless they want, doesn't mean it's real or high quality. You also don't know if they used the right welding material to keep it all stainless.
That being said, unless you're installing a turbo kit, shorties...
I agree with this. Not really worth touching anything else until you have longtubes. NA builds are often disappointing without them. You can probably hit your 400 mark without them, but I wouldn't expect to be much past that.
Those are two very different clutches.
I have not heard any good experiences with the street extreme, most go with the RST or RXT.
The Spec 2+ is more comparable to the Street extreme and will have better drivability than the 3+.
Of course, it would be better to tell us what you're working with...
No worthwhile difference, don't bother. A 2018 manifold is a bit better, but the Boss, Gt350, and Cobra Jet manifolds are still all better than the 2018.
Konis are "okay" on stock springs. They should never be run on full soft or full stiff, it wears them out much faster.
With lowering springs, they also tend to wear very quickly. I had a set on for maybe 20k miles and all 4 were varying levels of dead.
Swapped to Bilsteins and enjoy them MUCH...
The pmas is not garbage or internet hype, it's the only intake we can get that is actually computer modeled for airflow, and the flow bench tests back it up.
That being said, it doesn't fit well with the twin 67 tb due to the larger actuator, and you may need a piece of coupler hose to get it on...