Originally Posted by 2004LB7
dump the CP4 and replace it with the proven CP3. Also CP4 dose not have much capacity over its currant output.
built transmission is a must with anything over about 90ish HP over stock if you want it to live
A Cp3 only has capacity for 600 RWHP, a Cp4 has a capacity for about 550 RWHP although the Cp3 is known for being slightly more reliable.
If you are going to run twin turbo's I would think the 10mm Cp3 would be the best fit, since you have room to grow (capacity supports about 750 RWHP).
The LML transmission is much more stout than any of the previous models. Realistically running them at 550 RWHP (which is 150 RWHP over stock) is about as far as you will want to take a daily driver.