[BR3W CITY]

While I can't comment directly on fitting anything into a 4x4 swap, I'm more than comfortable on 2wd swaps, and your working with even less room.

The DT 1-3/4 is the largest header that I've seen anyone run on a swap truck that wasn't a)built from scratch or largely modified from a custom header setup b)over $1200.

There aren't 2" primary headers that will easily fit, and there really aren't a ton of 2" primary headers around in general. We've got multiple 5-7-900+hp cars running 1-3/4 or less...thats single digit cars. 4x 2" pipes is 8" with no room in between, its hard to convey just how much room they take up under hood.

If you wanna go turbo down the road, then cast manifolds are better to easily convert.

Just for sh!ts, open a picture of the TBSS cast manifold and then overlay a picture of the TBSS big-tube headers. The #1 primary will hit the engine stand or the frame rail before it comes "back" far enough to tuck in. You also have the steering shaft clearance to consider. If you use a slider mount, you may be able to offset the engine far enough to come close to tucking that pipe, but it may place the engine in a less-than-ideal location.