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Downpipe with cat ONLY on Cupra ST 290?
- Thread starter Trettiosjuan
- Start date
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I'm going for this one, straight swap with same fixtures as original.
https://www.turboperformance-shop.d...-cupra-290-o-76-mm-mit-ece-zulassung-90951115
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Trettiosjuan I can recommend the Force79 downpipe worh hjs cat. Manucatured by Friedrich Motorsport but ca 1000 SEK cheaper (rebranded). Otherwise same same as the hg downpipe. I think that the ST downpipe is different from the regular cupras. Be aware.
Hälsn Svart Cupra
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Hälsn Svart Cupra
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Thanks for the warning. Exhaustclamp between downpipe/cat-back sits a little behind the 'bridge' reinforcement on the underside of the transmission tunnel. Looks the same as the hatchbacks, but have asked HJS to confirm.
Thanks for the tip, good price and nice bends on the force79. Still think I will go for the HJS made downpipe with close to original geometry and heat shield, and sensor cable routing.
One of the appeals of this car is that one basically can have, as an American said, an 'APR GTI' with real ~320hp (with approved stock looking dp) and BBK (Performance Pack Brembos) as a factory car with 3yr warranty and the price of a well equipped standard GTI. As a handsome, practical estate. Loving it
Thanks for the tip, good price and nice bends on the force79. Still think I will go for the HJS made downpipe with close to original geometry and heat shield, and sensor cable routing.
One of the appeals of this car is that one basically can have, as an American said, an 'APR GTI' with real ~320hp (with approved stock looking dp) and BBK (Performance Pack Brembos) as a factory car with 3yr warranty and the price of a well equipped standard GTI. As a handsome, practical estate. Loving it
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Great,Thanks for the warning. Exhaustclamp between downpipe/cat-back sits a little behind the 'bridge' reinforcement on the underside of the transmission tunnel. Looks the same as the hatchbacks, but have asked HJS to confirm.
Thanks for the tip, good price and nice bends on the force79. Still think I will go for the HJS made downpipe with close to original geometry and heat shield, and sensor cable routing.
One of the appeals of this car is that one basically can have, as an American said, an 'APR GTI' with real ~320hp (with approved stock looking dp) and BBK (Performance Pack Brembos) as a factory car with 3yr warranty and the price of a well equipped standard GTI. As a handsome, practical estate. Loving it
I noticed in one add in ebay for the st that it was an "extension" included to mount to factory catback. And when I ordered my downpipe the seller was keen to verify if i had a hatchback or st.
Dont think youll be disapointesd in either one of the hjs downpipes. No CEL and a slightly deeper tone from the exhuast. The performance increase is more measurable than noticeable. After all its less than 10% increase. Similar to driving alone with empty tank of gas and adding a full tank and a passenger.
If you havent installed the 034Motorsport Alu subframe mount i can highly recommend it. Less than 500sek from awesomegti.com.
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Cheers. Will be ready to order in a few weeks, I'll be very clear it's for the ST. Not looking for power per se, but am hoping for some improved spool times for the turbo, perhaps more noticeable in a manual and on small twisty roads.
I tried the 034 insert but had some troubles, now have something else: http://www.seatcupra.net/forums/showthread.php?p=4664027
I tried the 034 insert but had some troubles, now have something else: http://www.seatcupra.net/forums/showthread.php?p=4664027
Which is a difference which I do notice at times... To hijack my own topic a bit, why JB1/4 and not go to a reputable tuner, e.g. Stertman (any opinions about them?)
Rian will probably never go stertman again.
He have had some bad experience with them in the past.
Jb1 is warrenty safe, a regular software tune aint.
Ive gone the route of tmc tuning- jb - eurodyne.
Tmc - JB i got almost 0.5 seconds faster time 100-200 (11.9 vs 11.4)
Jb1 - jb1 + hjs (force79) downpipe and panelfilter 10.6 to 100-200, with 30% e85 and rest 98 octane.
Eurodyne stage1 95 octane tune + hjs (force79), panelfilter 100-200 10.5. Just 100% 98 octane.
So, the tune is more or less equal to a jb1 map1 @5.2.
Stertman stage 2.5, (intake, chargepipe, intercooler, turboback exhaust, dsg tune and ripped interior golf r 3 door 100-200 10.3.
Ill probably be 100-200 in 9.5 with stage 2 98 octane tune..
Stertman is big, but still havent proved their prices in any event during the öast years.
They out perform ak tuning (so does the jb1) but will probably not outperform apr, eurodyne, united motorsport, giac and unicorn motors.
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Isn't Stertman individual tunes based on Giac?
But first try the DP which should give some better response in my actual driving, twisty roads, instead of comparing times at speeds which I don't ever drive on our roads, I like to keep my licence...
A friend told me to be careful, that boost regulation could become erratic at certain engine speeds. Supposedly the case with at least the Milltek downpipe without remap. Anything you recognise?
Been denied several times over at golfmk7.com that youll need special software for aftermarket downpipe. The only tuner saying that stage2 tune is necessary with aftermarket downpipe is APR.
But true, as the spool up will be accelerared with the new downpipe. The boost levels during spool up will be discrepant to oem boost curve. But the boost levels will never go crazy like in an old saab 9000 aero.
Max boost will still be around 18-19 psi.
But true, as the spool up will be accelerared with the new downpipe. The boost levels during spool up will be discrepant to oem boost curve. But the boost levels will never go crazy like in an old saab 9000 aero.
Max boost will still be around 18-19 psi.
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Ok let's say one gets a stage 2 tune. Will the stock catback on the ST estate restrict a lot or is most of the gain in the dp? The front pipe is straight through, the rear pots are three chamber which is quite restrictive but there are two of them so speed is half from the main pipe...
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Haha, saw that now, the same final dampers (I checked, far neighbour has an R Estate), axle forward is different due to 4wd but the complaints that the r estate is quieter than the r hatch sound very familiar to us ST owners.
But learning to like it
But learning to like it
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Two days in. Software seems to have adapted fine. Throttle response improved and revs out more freely. Now drive in Cupra engine mode where it no longer feels too aggressive, engine really 'hangs' on the throttle during spirited driving. Spool up from low revs also improved although obviously it's still there.
No fault codes, checked with OBD11
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