Hey guys, im new to this forum but was just wondering if you guys no anything about the pistons in a 4.0liter. I think the stock ones are a convex piston but i was wondering if you can get flat top pistons for it. If i can would coventries be the place to go? What type of performance gains would i possibly get?

Other mods to put it into perspective:

2 1/2inch exhaust
Hi-flow cat
crow cam stage 3
genie extractors
chipped ECU
etc.

Im not going to talk myself up and say i did it myself because that would be lying. I actually bought the car how it is and the only modification i have done so far is paint the plastics black, add seat covers and install a trip computer.

Help would be much appreciated

yeh there is ACL race series that has a slight chamber in the top but some could call it a flat top