Altezza (Lexus) lights, Aluminum Spoliers, gloss on body-kits (eh? nova lads?), I'll think of some more no-doubt...

Underfloor neons on standard cars.

pretty much any modded Nova or corsa,

them dancing and flashing led kits, an when you can see the actual neon/led bar's under the car

tacky things ie sunstrips on shagged cars dodgy sticker kits, small wheels myself the best thing u can do is lower a car makes it look so much better!!!

o and that terrible kit made by carzone for the saxo if ne1 puts that on the car they want there head feelin!!!

Motorsport sun strips
stick on petrol caps
venom alloys
coloured stickers to create the 'bad boy' effect
cheap exhausts at a stupid angle that wake the dead
free sticker sets that come in a magazine, oh that includes free tyre led flys and harness pads!
add on fog lamps that are on in the daytime
them delta kits, theres nothing nice about them, sorry

i'll second that one to, they're pants!

Anything made by RGM (they make stick on fuel caps bonnet vents)

Spoilers!
Sun Strips on old Bangers!
Nodding Dogs! (LOL)

Bumpers that fall down (Hmmmmmm could that be mine?)

Yeah! ****ing Venom alloys! I hate them@!@!@! My mate used to have them on his golf...they're supposed to be quite weak too...

creases in tinted windows???No thanks

I don't think that's a mod, I think it's a cheap-skate

wel the worst 1 iv seen is some1 who used there girlfriend's tights to smoke out there front headlamps lol