De-CAT pipe

[king.stromba]

What deformance increase do you think this would actually give on a car? Is the CAT really that restrictive? Would a De-CAT work better in conjunction with a SS exhaust? Any info or links anyone? Cheers.

 

[Tom_16v]

My de-cat pipe didnt make much difference in actual power (less than 1bhp & 1lb/ft) but it did drop both peaks down 300rpm.

On the road, this made a big difference. IMO, its the best power per £ product out on the market.

 

[king.stromba]

Can you explaimn what you mean drop both peaks down? Im not mechanically minded.

Cheers

 

[Tom_16v]

My car was RRd before and after;

Peak power was @ 6950RPM (Just off the red line) after it was @ 6650RPM (Basically mean you dont have to rag it as much and it accelerates quicker)

Peak torque was @ 5100RPM (Fairly high) after it was @ 4801RPM (meaning it now pulled harder, from lower down the rev range)

On the road, its a fair bit faster, and you dont have to push it as hard.

 

[Pete-W]

even found this with putting 1 on my rt. wouldnt know actual stats but deff pulls better.

 

[king.stromba]

Nice one cheers

 

[007]

Is the Williams not a bit different as its torque is already lower down? Does this make the torque even lower?

 

[rt172]

Ive had one on my Williams pretty much since I got it, and put the cat on a few times for comparison. Its a bit quicker with the decat pipe, but noisier. Engine feels a bit freer flowing with the decat. Revs that bit better. Id recommend it.

Rhys

 

[king.stromba]

How easy is it to get the cat back on?

 

[Tom_16v]

4 bolts....easy

 

[rt172]

Yup, very easy indeed. Just keep some new gaskets and exhaust sealant kicking around so you can do it whenever you need/want to.