I recently tried the TSP Intake Coupler Upgrade for my FL5/DE5, paired with a OEM anir box and aftermarket inlet pipe, but unfortunately, it didn’t work out for me. I took a chance hoping for compatibility. Unfortunately, I think the PRL couplers are what will work with my setup.
Despite my fitment issues, I have to commend the quality of the TSP coupler itself. It’s a robust product that feels extremely durable, especially with the way the silicone is wrapped and woven on the inside. The craftsmanship is evident, and it definitely looks the part.
Just a word of caution: if you don’t have the PRL HVI, this coupler might not be the right choice for you. It’s an amazing product in terms of quality, but it’s crucial to ensure compatibility with your setup before diving in. Overall, I appreciate the effort behind the design, but I wish I had looked into the specifics more closely before purchasing.