Most % power increase with n/a bolts

Originally Posted by SouthArk370Z

3) Mods are not necessarily additive and can, in some cases, actually work against each other. Eg, if mod1 alone gives a 5 HP boost and mod2 gives 10, the two together probably won't give a 15 HP boost. You need to do a lot of research to make sure your mods play well with each other. You can't just throw the "best" components together and expect everything to work right.