1998 Euro spec Viper GTS

[jimsss]

Hi! New owner in Sweden here, it's a 1998 GTS Silver.
This car is mint, but has the terrible euro exhaust. Power
stealing and sounds awful. Also it is not as fast as I hoped.
Will smooth tubes, cut airbox and an exhaust fix this?
I have asked on Viperalley but I would really appreciate
if you guys who actually own euro spec Vipers could give me some
input.
Thanks and have good weekend!

[Viper]

the stock exhaust is quite an embrassing sound for such a car, your planned mods will make the world of difference and make it a much more enjoyable experience ! swapping for hi-flows cats (the OE ones are quite restrictive) and K&N air filters will also help and isnt expensive to do either. Make sure you remove the airbox restrictor if it hasnt already been taken out

enjoy !

[woolfie]

I can second Viper's comments..I have a euro version and stripped out the rear silencers..and just recently had the cats replaced, and smooth tubes..makes a world of difference.

[ViperGTS99]

High-Flow Cats!
Corsa 3" cat back!
smooth tubes!
US PCM (or find a dealer who can reprogram the EU PCM)!!!
air box restrictor removal!
all set!

[Viper]

if you can get yourself to a swedish/swiss/german club meet, you'll get to hear lots of different exhaust setups

[GTS]

I can help you with headers and a US spec ECU if that helps??

Carl

[jimsss]

How much for an ecu?

[jimsss]

Thanks you all btw for all the answers that i wanted to hear!
Ordering a belanger catback, smooth tubes and kn's next week.
Btw did anyone race their eour Viper in th 1/4...numbers I have
seen on american forums are insanely fast (11's).
12.5 and I am pretty satisfied.

Thanks again

[Viper]

you cant drop a 2001 ECU into a 98, the ECU must be of the same year,
different cams,timings etc..

12.5@113mph was acheived by Viper Larry on his first run in a stock GTS

Edited by Viper on Thursday 29th June 19:35

[GTS]

Mine that is available is a Sean Roe ECU it will work fine

www.roeracing.com/ProductCart/pc/viewPrd.asp?idcategory=8&idproduct=31


Thanks for your help there Neil

I need my 2001 ECU for the doorlocks etc

Carl

[jimsss]

I've heard that euro models have only 2 p2 sensors?
Is this true, and will an us spec still work??

[jimsss]

I meant o2....

[Viper]

only x2 sensors before the cats near the headers

[viper_larry]

Viper said:

12.5@113mph was acheived by Viper Larry on his first run in a stock GTS

12.49 actually

[ViperGTS99]

Correct, I forgot above...
4 (!) O2 sensors for the US PCM.