Straight through exhaust

[12callum]

Hi guys, any one know the law/rules on straight through exhausts? on my 90 samurai the exhaust is nakered, there's to many holes to patch up so was thinking of making one to save money!
Will I need to keep any of the old one for the M.O.T eg emissions, noise etc and will it effect performance +/-!

Also I've read somewhere that if I tape over the rust behind the seats etc it may pass the mot? Is this true as there not allowed to pull it up? If so I might get an M.O.T and sort the rust out when the weather gets a bit better!

[turbo-tom]

Hello I have a straight through on my truck and its loud but does sound nice and throaty I would say it gives a little performance gain but nothing to brag about but as I say it all depends on the tester as all mot testers are different.

And regarding tapping over rust well thats the first time I have heard of doing that if you put tape over it. They will ethier pull it up or stuff a screw driver in it so I would get it plated also its near a structal point I would deffo cut the rot out and plate it up and do a propper job

[ScottieJ]

I would advise against a straight through exhaust, you'll get fed up of the noise within about 500 metres I would imagine it would fail for being too loud as well.

If you need welding done, take a few pics of what needs doing and I could come over with my Mig for a small fee providing there is access to a power supply at your garage? Tom is right in an area so close to a seatbelt mount and body mount they'll just stab a screwdriver through it
That only really works on non structural areas and sharp edges.

[12callum]

Wow thanks Scottie, I'll try and get some photos later! Unfortunately it's on the body mount behind the drivers seat! I really want to take the body off to cut all the rust out but space and time at the mo are in short supply! Apart from that I could probably fix the exhaust for now! I'm desperate to get her on the road but equally don't want to rush it then have to redo it later !