Hey guys, I'm buying Zboy's used kinetix plenum this weekend, but had a few questions.. (buying no matter what, just curious) So basically I'll be swapping back to stock cats, but adding a plenum... (only other mod is a popcharger)

What is your opinion on which part will give better gains...a plenum or testpipes??? Trying to figure out if the car will be faster or slower than with the TP...?

I'm removing my helix TP (CEL + Rasp= ) ...to me the TP didn't give much of a gain if any..(butt dyno) but some people here claim they got like 10whp from them....I've heard good things about the crawford and kinextix plenums, ....so would some of you guys that have either part or both parts let me know what you think..??

Also is there anyone on here that actually feels like the TP/hi-flows are really helping?? I know it's the most restrictive part of the exhaust, but I'm just being honest in saying they didn't help me..I even raced cars before and after the TP and got the exact results..