R-Tech stage 1 last week

[Vandyer]

Hello

After much research I took my car to R-Tech last week for a stage 1 remap.

The guys down there know their stuff and Niki identified that my car was suffering with a problem with flow..... Post remap 287bhp  which I'm over the moon with but he reckons that was lower than he was expecting ....

Anyway, time for a schoolboy confession - I filled my car with diesel and drove 4 miles.....(it went to VW main dealer for fuel line drain, new filters etc)

Question- do you think the cat or pre cat might be blocked with diesel particles??

Niki was kind enough to give me a exhaust (the middle bit) and it's had the pre cat removed- he suggested fitting it and see if it helps

I'm delighted with 287bhp but can't help wonder what damage my schoolboy error has caused. 

Any advice welcome

[alexharvey]

get the downpipe niki gave you on the car!!
cat might be ruined on yours

[GrayMK5GTI]

I saw this on Niki's Facebook too!

Blocked cat sounds plausible so get the FREE downpipe fitted and see if it's quicker 

May be worth checking your air filter as if it hasn't been changed recently it will hold back the power a little bit. Maybe treat your car to an updated Pipercross Panel filter (£35 on eBay)

[Vandyer]

I sure will get the exhaust fitted...is this a simple DIY job or more specialist?

As for air filter, was planning that too, especially the relatively low cost

[GrayMK5GTI]

Exhaust is only 4 bolts and a clamp. Any decent reputable garage can swap it over, ask them to remove the pre-cat from the exhaust Niki gave you as that will free up at least another 5bhp

http://www.mk5golfgti.co.uk/forum/index.php/topic,41083.0.html

[Andy]

Also seen this on Nicks page
I would try the exhaust and also change the fuel filter as well

[Vandyer]

I'll get a local garage to fit the exhaust.....forum suggest new gasket and 4 new bolts too

The fuel filter was changed by the dealer when the fixed it following my error

I thought I would simple get my car remapped, turns out this is addictive.......I'm going to get a panel filter, pipercross seems popular..and advice welcome

Also think I might change the Diverter valve, Nick said mine was original and looked ok, but reading on these forums it seems wise to upgrade

Thanks for the advise