A Sparco direct fit sub-frame for the Audi A4. Part number 00499074.
This is the bracketry that lets a sports seat bolt into the A4 on the car’s own floor mounting points. It replaces or adapts what the factory seat sat on and gives you a flat 345mm by 271mm base for the new seat. The alternative is fabricating, and on a car that is still used on the road that is the part of a seat swap worth paying to get right.
What it takes
Base mount seats on the 345mm by 271mm pattern, which covers Sparco, OMP and Corbeau base mount seats. Older text on the sub-frame range said same brand only. It was wrong. The compatible seats list here is accurate.
A side mount bucket needs side mounts or adaption bars fitted on top of the frame. It will not sit on the frame on its own.
Ordering it
One frame per seat. If you want both sides, add it twice and choose RHD driver on one and RHD passenger on the other, because these are handed.
Tell us the seat you are pairing it with in the comments when you order. Sub-frames in this range vary by car between a full replacement frame and a set of adaption bars, and the photograph on the page is illustrative rather than a picture of the A4 part. We check the combination before dispatch.
If you are unsure whether your seat is base mount or side mount, send us the part number and we will tell you.






















