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Sigma decat pipe on ebay


K7 VCT

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Interested to how you get in with decat, i fitted one, car quieter most of time, pops from exhaust stopped surprisingly.

In end sold it on as didn't have any power or torque gains at all.

Looked better on car though

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#6 #7  Doubly interesting TJG and K7 .  I do enjoy the popping back with the Cat.......Strange it should disappear

Even though earlier conversations on here advise; Popping back can destroy the Cat ?

Did you find a sympathetic Mot tester , chance the De-cat pipe. 

I agree ...De-cat pipe cleans up the look massively. 

When it arrives i will take it into work (who said that *whistle*) and give it a good polish first. 

We both have the same 310S engine K7, so will be an Interesting experiment.   Was yours factory built/ upgraded ?

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Sounds like you had a good deal K7. 

I only drove / roadtested a 270 briefly , with the owner by my side so couldn't give it the real beans, before opting for a factory built 310. (without lightweight flywheel) . So harder to compare the two back to back 

i would imagine that flywheel makes a big difference to how lively it feels , lower down ? 

Interestingly i get more "popping back" with the 310 (from what i remember),  which i like. 

I mainly went for that model after reading loads of reviews including the statement from CC;  "If Caterham only made one car it would be the 310". 

Plus liking the options / colour choice chosen by the original owner . 

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Lightweight flywheel really sharpens throttle response, would have been interesting to try both with and without one.

Must say after 2 steves mapped the ecu on the rolling road session as wasn't running right it became a different animal.....very happy with it.

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Sounds Good K7.  I did go out in 310R at Williams Bristol, but only as a passenger. Plus came close to buying their white 310R (ex demonstrator/hire car with 12k miles  ) at CC Gatwick , before finding my 310S (1200 miles) last year. 

Guess what i am saying is came close to buying a lightweight flywheel model. But more than happy with mine ......At present *driving*

Chris 

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So I fitted mine today. It's a lot more raspy on my 150 Superlight then the original cat.  The cat had a deeper note. Mine seems like it has more torque now although I found my Lambda sensor was loose! 

The car pops more on general changes and when giving it some, you get some big bangs which is quite satisfying.

I think I preferred the sound with the cat on though overall, but the increase in torque is welcome, I've had the back kick out in second a few times uphill which is new.  Be interesting to get everyone else impressions. I will get a Dyno on both later this year/ early next year 

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Fitted the bargain De-cat pipe this weekend. Only slightly louder. Pops back pretty much the same on the overrun but perhaps with more pressure / louder.    Looks so much better cosmetically *clap*.  Thank you again K7.20200523_162952.thumb.jpg.700afbd13416ddff7892c1341b13c2c9.jpg

Possibly slight increase in performance or perhaps we hold it in lower gears longer to enjoy the sound *driving*

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