Hi! We are sorry to hear about any problems that you have run into. It's strange that you mention any problems regarding the 99 jspec spoiler since we haven't had any problems with that product.
Regarding the 2+2 side skirts, we have had one other customer point out fitment issues regarding the side skirts, but he was able to have the side skirts fitted by sliding in the rear section first and then making minor adjustments at the front fenders. What we have done is make our side skirts aprox 1/4 of inch longer to help alleviate these possible issues. Unfortunately this was not pointed out to us until December.
Please keep in mind that with aftermarket parts there will always be the need for body work and adjustments as these are not factory parts and do not have the million dollar funding that OEM parts have.
You order was received over 3 months ago, so please let us know what we can do to help you.
Regards.
"torque gets you off the line...& hp gets you over the line." - TTKeeper