So I've heard the transmissions in our cars aren't the best, but this is the first time I've had real trouble with mine. I have my car tuned with a GT rear end and 3.73 gears, CAI, throttle body, and I had a y pipe exhaust set up. I recently put an off-road xpipe and removed my cats (sounds amazing btw), but now if I try and floor it to race someone or get my 0-60 times it pegs off the 5500 rpm mark until I let off the gas then it shifts and it kills my speed. I'm wondering if maybe the off-road x pipe added enough power to make it not realize it needs to shift and I need to tune it? Or if my transmission is going out or what. Thanks!
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