If you only replace lower intercooler hard pipe , you still have stock upper intercooler pipes and hoses which is just a waste . If i was you i would buy ebay 2.25" intercooler hard pipe kit for $125. which include straights + 45 bends + 90 bends pipes + 45,90,straight couplers and t-bolt clamps . that's all you need to complete replace your intercooler hard pipes ; 2.25" intercooler pipes are good for stock and 57trim ct26 also work great with stock intercooler or after market . CT26 compressor outlet dia. is 2.25" and 3000 pipe also 2.25" . with complete intercooler hard pipe , you'll notice big different in turbo response .