Replacing the UICP may not add hp, but as he said, the stock couplers are known to expand and flex under boost which can eventually cause boost leaks. IMHO, replacing them with better quality parts/materials is not a bad idea.

 

T-bolt clamps, my first mod ~8 years ago. Zero boost leaks in 35K miles with stock couplers all-around. STM checks; just one of the benefits of working with a conscientious shop.

 

STM might have em

 

Check out HPS couplers. You just need to know the size of the couplers, angles and length and you should be good. They have a huge variety and they have really good tbolt clamps. I have used them several times and have had zero issues with their products.