I had those door pods custom built by a local audio shop (Audio Obsession) to fit the ID Chameleons, which are 6.5" speakers with massive magnets...they wouldn't fit in a stock door if you cut a hole in the other side

Cost me about $240CDN ($150US) in parts/labour for those puppies.
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'91 LX Hatch, 17 ROH ZR6's, lowered, 3.73's, offroad H pipe, SN Cobra cat-back, ASP pullies, 14° timing, C&L 76mm MAF, 170A 3G, B&M Ripper on a T5
1991 LX Hatch 5.0L