Am i right in saying that the NA horsepower around 225 bhp, mine has a mongoose exhaust and induction kit, what horsepower would u say that would add?

It probably has about 210 bhp now with the exhaust and induction.

u saying those things make it worse!

No, over the years you lose BHP ;)

u saying those things make it worse!

 

The wrong exhaust will possibly make it worse, remember most aftermarket exhausts are designed for the more popular TT, but as Murt said, the biggest problem will be its lost a lot of power over the years, it does vary with each car though so if you want a definate answer the only way is to get it on a rolling road.

Best thing to do, is get a dyno test done only about £40 depends on were you go.

well mine was 216 bhp un-modded. went up to 240 bhp with a lightened flywheel,devin chipped ecu,decats,and stainless steel tubular manifolds so use that as a guide